Clarity Diamonds — AI Image Generation Prompts: Launch Ads
Generated from: Ad Creative Brief — Launch.md
Date: 2026-03-17
Purpose: Ready-to-use prompts for generating all ad creative images using AI image generation tools (OpenRouter models)
Model capabilities reference: General/AI Image Model Capabilities — OpenRouter.md
Copy & Logo Decision Framework
All 8 models now support text rendering and accept image inputs (logos). The decision of whether to bake copy and logo into the AI image or apply in Canva/Figma comes down to:
- Bake in the logo when the ad is a final production asset and logo placement is fixed. Pass
clarity_logo.pngas a reference image input. - Bake in copy only when the text is part of the visual identity of the ad (e.g., a headline IS the creative) — not when copy is variable (pricing, CTAs that change for A/B tests).
- Overlay in Canva for: pricing, CTAs, taglines being A/B tested, and anything you want to swap without regenerating the image.
See per-ad guidance below.
Cost-Conscious Model Guide
| Use case | Recommended model | Cost |
|---|---|---|
| Volume / carousel cards | [[Seedream 4.5 | bytedance-seed/seedream-4.5]] |
| Lifestyle / portrait | [[Seedream 4.5 | bytedance-seed/seedream-4.5]] |
| Pure product (no text) | [[Gemini 2.5 Flash Image | google/gemini-2.5-flash-image]] |
| Fast iteration / proofs | [[Gemini 3.1 Flash Image | google/gemini-3.1-flash-image-preview]] |
| Text baked in (headlines, labels) | [[FLUX.2 Flex | black-forest-labs/flux.2-flex]] |
| Document / certificate text | [[GPT-5 Image Mini | openai/gpt-5-image-mini]] |
| Full brand production (logo + copy + layout) | [[Gemini 3 Pro Image | google/gemini-3-pro-image-preview]] |
Default recommendation for most ads: `bytedance-seed/seedream-4.5` or `google/gemini-2.5-flash-image` for drafts, `black-forest-labs/flux.2-flex` or `google/gemini-3-pro-image-preview` for finals with baked-in text.
How to Pass the Clarity Diamonds Logo
All models accept image inputs. To include the logo:
# Encode logo to base64
LOGO_B64=$(base64 -i /path/to/clarity_logo.png | tr -d '\n')
# Pass as image_url in the messages array (see API example in capabilities doc)
Add this instruction to any prompt: "Include the Clarity Diamonds logo in the bottom-right corner, small and unobtrusive, white version on dark backgrounds or dark version on light backgrounds."
Ad 1A — Signature Concept (Video Frames + Key Stills)
Format: Video 6–15s (generate key frames; animate in Runway/Kling/Sora)
Copy baked in: No — video overlays handled in editing
Logo baked in: No — logo appears on end card only
Recommended model: `google/gemini-2.5-flash-image` for drafts · `openai/gpt-5-image-mini` for final hero frame
Why: These are product photography stills fed into a video tool. No text needed. Cheapest quality product shot wins here; upgrade only the hero frame to GPT-5 Image Mini.
Frame 1 — Ring at rest (0–2s)
Ultra-high-end jewellery photography, a round brilliant-cut solitaire engagement ring resting on a pure white Carrara marble surface, 18k white gold band, dramatic soft natural window light from the left casting a gentle diagonal shadow, the ring slightly off-centre to the right, extreme close-up shallow depth of field, the diamond facets catching crisp light and creating subtle rainbow caustics on the marble surface, hyper-realistic product photography, 4K detail, no text, no props, clean minimalist composition, Canon 5D macro lens aesthetic
Frame 2 — Ring rotating / catching light (2–5s)
Ultra-high-end jewellery product photography, identical round brilliant-cut solitaire engagement ring on white Carrara marble, 18k white gold, now caught at a 45-degree rotation angle so light refracts through the crown facets creating brilliant fire and scintillation, rainbow light caustics scattered across the marble below, soft studio lighting with a single directional warm window light source, crisp sharp diamond facets, photorealistic luxury jewellery editorial style, magazine cover quality, no text
Frame 3 — Prism/ice signature display variant (alternative concept)
Luxury jewellery editorial photography, a single round brilliant-cut diamond ring resting on a clear glass triangular prism on a pure white surface, rainbow refraction spectrum projected across the white background from the prism, the diamond and ring perfectly sharp, dramatic backlight, minimal composition, the prism and ring together creating a signature brand image, ultra-clean white background, professional studio lighting, photorealistic, 4K, no text
End Card — Logo placeholder
Clean minimalist white background, subtle soft gradient from white to very light grey at the edges, centre of frame completely empty for logo placement, bottom third has gentle warm marble texture suggestion at 10% opacity, no text, no objects, premium brand aesthetic, suitable as an end card for a luxury jewellery brand
[9:16] Stories — Ring hero
Ultra-high-end jewellery photography vertical format 9:16, a round brilliant-cut solitaire engagement ring on white Carrara marble positioned in the upper-centre third of the frame, dramatic soft natural window light, rainbow caustics on marble, ring facing camera at a slight angle, bottom two-thirds of frame is clean white marble surface with soft shadows providing space for text overlay, hyper-realistic luxury product photography, no text, 4K detail
Ad 1B — Before & After CAD
Format: Static split-screen composite
Copy baked in: No — "Design to Reality" headline overlaid in Canva
Logo baked in: No — composite in Canva
Recommended model: `google/gemini-2.5-flash-image` (cheapest — no text, just renders)
Why: Both halves are pure visual — no copy, no logo required in the AI image. Generate each half separately and composite.
Left side — CAD wireframe render
Technical 3D CAD wireframe render of an oval cut engagement ring with a pave diamond band, blueprint and technical drawing aesthetic, visible polygon mesh lines, cool grey-blue colour palette, gradient grey background, engineering/design software UI aesthetic, the ring shown at a 3/4 front angle, photorealistic 3D render style, professional product design visualisation, sharp technical detail, no text, no labels
Right side — Finished ring photo
Ultra-high-end jewellery photography, a beautiful oval-cut solitaire engagement ring with pavé diamond band, 18k white gold, displayed on white Carrara marble at a matching 3/4 front angle, identical composition and ring size to the companion CAD render, soft natural studio lighting, brilliant fire and scintillation in the diamond, hyper-realistic luxury jewellery photography, clean white background, editorial magazine quality, no text
[9:16] Stories — Split-screen vertical
Vertical 9:16 split-screen image, top half: a technical 3D CAD wireframe render of an oval engagement ring with pave band, blueprint aesthetic, cool grey-blue tones, visible mesh polygons, gradient dark grey background; bottom half divided by a clean white horizontal line: a finished luxury oval diamond ring on white marble with brilliant sparkle and soft window light, 18k white gold, same ring angle as the CAD render; minimal clean composition, no text, photorealistic quality throughout
Ad 2A — Diamond on Black (4Cs Guide)
Format: Static image
Copy baked in: Yes — bake in "The 4Cs" as a minimal elegant typographic element. This is the visual concept; the headline IS part of the creative.
Logo baked in: Yes — bottom-right corner, white version. Pass clarity_logo.png as reference image.
Recommended model: `black-forest-labs/flux.2-flex` (excellent typography on dark backgrounds · mid cost)
Why: Flux.2 Flex is the best model for typography-driven creative. The "The 4Cs" headline on black is the defining visual element. Logo inclusion is standard for this educational ad format.
1:1 Feed — with copy + logo
[Pass clarity_logo.png as reference image]
Extreme close-up product photography of a single loose round brilliant-cut diamond, centre-frame on a pure matte black background, dramatic chiaroscuro studio lighting from directly above and slightly forward, every facet of the diamond catching light and creating vivid fire, scintillation and rainbow caustics, the diamond appearing to float against the pure black, photorealistic ultra-high-definition jewellery photography, Leica lens aesthetic, 8K detail, the diamond occupies 50% of the frame upper-centre, deep black void background.
Typographic element: in the lower-left area, elegant serif typography in pure white reads "The 4Cs" — large, clean, luxury magazine style. Below it in smaller refined sans-serif white type: "Cut · Colour · Clarity · Carat".
Bottom-right corner: the Clarity Diamonds logo from the reference image, small and unobtrusive, white version.
1:1 Feed — no copy variant (for Canva overlay version)
Extreme close-up product photography of a single loose round brilliant-cut diamond, centre-frame on a pure matte black background, dramatic chiaroscuro studio lighting from directly above and slightly forward, every facet of the diamond catching light and creating vivid fire, scintillation and rainbow caustics, the diamond appearing to float against the pure black, photorealistic ultra-high-definition jewellery photography, Leica lens aesthetic, 8K detail, the diamond occupies 60% of the frame, deep black void background with no reflections or texture, no text, no other objects
[9:16] Stories — with copy + logo
[Pass clarity_logo.png as reference image]
Extreme close-up of a single loose round brilliant-cut diamond on pure matte black background, vertical 9:16 format, diamond positioned in the upper-centre third of the frame, dramatic overhead studio lighting creating vivid fire and rainbow caustics from the facets, photorealistic luxury jewellery photography, 8K detail.
Lower third: elegant white serif heading "The 4Cs" with refined sans-serif subtext "Cut · Colour · Clarity · Carat". Bottom-right: Clarity Diamonds logo from reference image, white version, small.
Ad 2B — IGI Certificate Flat-lay
Format: Static image
Copy baked in: No — the certificate props carry the visual concept; headline ("IGI Certified") overlaid in Canva
Logo baked in: Yes — subtle placement on the certificate or bottom corner, as if it's a branded document. Pass clarity_logo.png as reference.
Recommended model: `openai/gpt-5-image-mini` (best for document/text rendering — the certificate needs to look authentic)
Why: The certificate prop needs legible layout and professional document rendering. GPT-5 Image Mini handles this most reliably. Logo reference ensures brand presence.
1:1 Feed
[Pass clarity_logo.png as reference image]
Editorial lifestyle flat-lay photography, a formal IGI diamond grading certificate document laid flat on a smooth light grey concrete surface, shot from directly above at a very slight 5-degree angle, the certificate clearly showing official laboratory branding and grading table (generic diamond certificate layout), a single loose round brilliant diamond placed on top of the certificate catching light, a matte black fountain pen resting at a diagonal beside the certificate, soft diffused overhead studio lighting, shadows from the certificate edges creating depth, clean editorial jewellery industry aesthetic, photorealistic, magazine-quality flat-lay.
Bottom-right corner of the image: the Clarity Diamonds logo from the reference image, small and understated.
[9:16] Stories
[Pass clarity_logo.png as reference image]
Vertical 9:16 editorial flat-lay photography, an IGI-style diamond grading certificate document on light grey concrete surface shot from above, positioned in the upper two-thirds of the frame, a single loose round brilliant diamond resting on the certificate with subtle sparkle, a dark fountain pen angled beside it, soft diffused overhead light, the lower third of the frame is clean grey surface providing space for text overlay, photorealistic luxury editorial photography. Bottom-right: small Clarity Diamonds logo from reference image.
Ad 3A — Carousel Cards (House Collection)
Format: 5 individual carousel cards
Copy baked in: Ring name only (e.g., "The Emerald") as part of the image. Price and CTA overlaid in Canva — pricing must stay flexible.
Logo baked in: Yes — all 5 cards, bottom-right, consistent placement. Pass clarity_logo.png as reference.
Recommended model: `bytedance-seed/seedream-4.5` ($0.04 flat/image — best value for 5-card volume, excellent colour/lighting consistency across variations) **Why:** 5 images at $0.04 each = $0.20 total. Seedream preserves colour tone and consistency across a set. Ring name as part of the visual gives the carousel a premium editorial feel without locking in variable data.
Card 1 — The Emerald (3ct Emerald Solitaire, 18k White Gold)
[Pass clarity_logo.png as reference image]
Ultra-high-end jewellery product photography, a large emerald-cut solitaire engagement ring, 18k white gold cathedral setting, the emerald-cut diamond displaying its characteristic hall-of-mirrors long rectangular facets and beautiful depth, displayed on white Carrara marble from a 3/4 front-above angle, soft natural diffused studio lighting, brilliant light play through the step-cut facets, hyper-realistic luxury jewellery photography, clean white background with marble texture, the ring centred in the upper two-thirds of the frame.
Lower area: elegant minimal serif text "The Emerald" in charcoal grey. Bottom-right: Clarity Diamonds logo from reference image, small and refined. Bottom 25% left clean for price overlay bar.
Card 2 — The Statement (1.5ct Oval Solitaire, 18k Yellow Gold)
[Pass clarity_logo.png as reference image]
Ultra-high-end jewellery product photography, a 1.5 carat oval brilliant-cut solitaire engagement ring, warm 18k yellow gold band with slim elegant profile, the oval diamond displaying brilliant fire and bow-tie shadow characteristic, displayed on white Carrara marble from a 3/4 front-above angle, warm soft natural lighting enhancing the yellow gold warmth, hyper-realistic luxury jewellery photography, clean white marble background, ring centred in the upper two-thirds.
Lower area: elegant minimal serif text "The Statement" in charcoal grey. Bottom-right: Clarity Diamonds logo, small. Bottom 25% clean for price overlay.
Card 3 — The Forever (1ct Cushion Three-Stone, Platinum)
[Pass clarity_logo.png as reference image]
Ultra-high-end jewellery product photography, a three-stone engagement ring with a cushion-cut centre diamond flanked by two matching round brilliant side stones, platinum setting with a clean architectural band, the three diamonds creating a symmetrical balanced composition with brilliant sparkle, displayed on white Carrara marble from a 3/4 front-above angle, cool white platinum tones complemented by crisp studio lighting, hyper-realistic luxury jewellery photography, clean white marble background, ring in upper two-thirds.
Lower area: elegant serif text "The Forever" in charcoal grey. Bottom-right: Clarity Diamonds logo, small. Bottom 25% clean for price overlay.
Card 4 — The One (1ct Oval Pave, 18k White Gold)
[Pass clarity_logo.png as reference image]
Ultra-high-end jewellery product photography, a modern oval brilliant-cut solitaire engagement ring with pavé diamond-set band, 18k white gold, the band encrusted with micro-pavé diamonds catching additional light and sparkle, the oval centre stone displaying brilliant scintillation, displayed on white Carrara marble from a 3/4 front-above angle, soft diffused natural lighting creating maximum diamond fire, hyper-realistic luxury jewellery photography, clean white marble background, ring in upper two-thirds.
Lower area: elegant serif text "The One" in charcoal grey. Bottom-right: Clarity Diamonds logo, small. Bottom 25% clean for price overlay.
Card 5 — The Classic (1ct Round Solitaire, 18k White Gold)
[Pass clarity_logo.png as reference image]
Ultra-high-end jewellery product photography, the quintessential round brilliant solitaire engagement ring, 18k white gold classic four-prong setting, 1 carat round brilliant-cut diamond displaying perfect symmetry and maximum brilliance, timeless elegant design, displayed on white Carrara marble from a 3/4 front-above angle, precise soft studio lighting to maximise fire scintillation and brilliance, hyper-realistic luxury jewellery product photography, clean white marble background, ring in upper two-thirds, editorial magazine quality.
Lower area: elegant serif text "The Classic" in charcoal grey. Bottom-right: Clarity Diamonds logo, small. Bottom 25% clean for price overlay.
Carousel card text overlay background (to composite in Canva)
A clean semi-transparent white frosted glass rectangle panel, suitable for overlaying on a photograph, the panel occupies the bottom 30% of a 1080x1080 frame, subtle border shadow at the top edge, smooth white frosted texture, no text, no patterns, just the clean overlay panel element isolated on a transparent background for compositing
Ad 4A — Concierge Soft Sell (Lifestyle)
Format: Static image
Copy baked in: No — the warmth of the photo does the work; copy ("We'll guide you every step") overlaid in Canva
Logo baked in: Yes — very subtle, bottom-right corner. Warm-toned or neutral version.
Recommended model: `bytedance-seed/seedream-4.5` ($0.04 flat — specifically best for portrait/lifestyle and warm colour preservation)
Why: Seedream 4.5 is the standout model for lifestyle photography and colour warmth. Logo reference ensures consistent branding without disrupting the intimate aesthetic.
1:1 Feed
[Pass clarity_logo.png as reference image]
Warm intimate lifestyle photography, a close-up of a woman's hand adorned with an elegant round solitaire engagement ring in 18k gold, captured in soft golden-hour afternoon light filtering through sheer curtains, the hand resting gently on a linen fabric surface, natural skin tone warmth, the ring catching warm gold light with subtle sparkle, soft shallow depth of field blurring the linen background into warm cream and beige tones, film photography aesthetic, intimate and romantic, real and genuine not overly styled, no face visible — hand only, warm colour palette of ivory, gold, and soft amber.
Bottom-right corner: Clarity Diamonds logo from reference image, very small and understated, warm neutral tone to blend with the aesthetic. No other text.
[9:16] Stories
[Pass clarity_logo.png as reference image]
Warm intimate lifestyle photography vertical 9:16, a woman's hand wearing an elegant round solitaire gold engagement ring, positioned in the centre of the frame, soft golden-hour light from the side, hand resting on linen fabric, warm cream and amber colour palette, shallow depth of field, romantic and intimate, the upper and lower thirds of the frame are clean blurred warm linen texture providing space for text overlay, film photography aesthetic.
Bottom-right: Clarity Diamonds logo, very small, warm neutral version from reference image. No other text.
Ad 5A — Style Quiz (Composite — Multi-ring Arrangement)
Format: Static image
Copy baked in: Yes — "Which style is yours?" as the headline. This is a quiz hook ad; the CTA IS the creative concept. Pair with logo.
Logo baked in: Yes — top or bottom corner.
Recommended model: `google/gemini-3-pro-image-preview` (best for multi-subject identity preservation + text quality · medium cost)
Why: 5 rings in one composition with a baked-in headline. Gemini 3 Pro handles up to 5 distinct subjects and has industry-leading text. Worth the higher cost for this hero concept ad. If budget is tight, use `black-forest-labs/flux.2-flex` for the typography instead.
1:1 Feed — with copy + logo
[Pass clarity_logo.png as reference image]
Luxury jewellery editorial flat-lay photography, five different engagement rings arranged in an elegant semi-circle fan arrangement on white Carrara marble — including: a round solitaire in white gold, an oval solitaire in yellow gold, an emerald-cut solitaire in white gold, a cushion three-stone in platinum, and an oval pavé in white gold — each ring distinct and clearly visible, all rings sharp and in focus, soft overhead natural light creating subtle consistent shadows, clean white marble background.
Upper area of the image: elegant large serif heading in charcoal grey reads "Which style is yours?" — refined luxury magazine typography.
Bottom-right corner: Clarity Diamonds logo from reference image, small, dark version on white background.
1:1 Feed — no copy variant (for Canva overlay)
Luxury jewellery editorial flat-lay photography, five different engagement rings arranged in an elegant semi-circle fan arrangement on white Carrara marble — including: a round solitaire in white gold, an oval solitaire in yellow gold, an emerald-cut solitaire in white gold, a cushion three-stone in platinum, and an oval pavé in white gold — each ring distinct and clearly visible, all rings sharp and in focus, soft overhead natural light creating subtle consistent shadows, clean white marble background, the arrangement centred leaving the upper and lower areas clear for text overlay, photorealistic luxury jewellery editorial photography, no text, magazine quality
[9:16] Stories — with copy + logo
[Pass clarity_logo.png as reference image]
Luxury jewellery editorial flat-lay photography vertical 9:16, five different engagement ring styles arranged in a gentle arc in the centre of the frame on white Carrara marble — round solitaire, oval solitaire in yellow gold, emerald-cut, cushion three-stone, and oval pavé — each distinct and clearly visible, all sharp, soft diffused overhead light.
Upper portion: elegant serif text "Which style is yours?" in charcoal grey. Bottom-right: Clarity Diamonds logo from reference image, small, dark version. Sufficient margin at bottom for swipe-up CTA.
Ad 6A — Buyer's Guide PDF Download
Format: Static image
Copy baked in: Yes — "Free Diamond Buying Guide" on the booklet cover. This is a lead magnet ad; the title of the guide is the value proposition. The booklet itself should carry the text.
Logo baked in: Yes — on the booklet cover and/or bottom corner.
Recommended model: `openai/gpt-5-image-mini` (superior text rendering for the booklet title · low-mid cost)
Why: The booklet title is the entire hook. GPT-5 Image Mini reliably renders legible document text. Worth the small premium to make the guide title clear.
1:1 Feed
[Pass clarity_logo.png as reference image]
Editorial lifestyle flat-lay photography, an open softcover booklet on white Carrara marble. The booklet cover clearly reads "Free Diamond Buying Guide" in elegant serif typography with the Clarity Diamonds logo from the reference image on the cover. The booklet is open to interior pages with neat text layout suggesting a premium educational document. Beside the booklet: a jeweller's loupe magnifier, a single loose round brilliant diamond catching light, and a small navy velvet ring box closed. All objects arranged naturally on the marble with soft shadows, diffused natural overhead light, warm but professional editorial aesthetic. The booklet occupying the centre-left of the frame, overall composition leaving space at the top and bottom for text overlays. Photorealistic lifestyle product photography.
[9:16] Stories
[Pass clarity_logo.png as reference image]
Editorial lifestyle flat-lay photography vertical 9:16, an open softcover booklet on white Carrara marble in the upper-centre portion of the frame. The booklet cover reads "Free Diamond Buying Guide" in elegant serif typography, with the Clarity Diamonds logo from the reference image on the cover. A jeweller's loupe and a loose diamond beside it catching light, small navy ring box, soft diffused overhead light, warm editorial aesthetic. The lower third is clean white marble for text overlay. Photorealistic lifestyle product photography.
Additional / Alternative Creatives
CAD Wireframe Ring (for Ad 1B — alternative AI generation approach)
Model: `google/gemini-2.5-flash-image` (cheapest — purely technical render, no text)
Precise 3D technical CAD wireframe render of a round solitaire engagement ring, computer-aided design software aesthetic, grey gradient background, blue-grey wireframe mesh lines showing the ring geometry, four prong solitaire setting with round brilliant diamond seat visible, rendered as if in Rhino3D or MatrixGold design software, medium-angle 3/4 view, professional product design visualisation, the wireframe clearly shows the ring structure and stone setting, subtle blue ambient lighting, no text, no labels, clean technical aesthetic
Alternative diamond hero — floating on black (for variations)
Model: `black-forest-labs/flux.2-flex` (excellent fine detail · mid-high cost)
Fine art product photography, a single round brilliant-cut loose diamond hovering centre-frame against absolute pitch black background, lit from a precise directional studio strobe creating one side of intense fire and scintillation while the other side recedes into shadow, the diamond facets creating a dramatic light show of blues whites and rainbow colours, floating perspective with no surface visible, ultra sharp 100MP medium format camera aesthetic, luxury watch advertisement quality, no text
Lifestyle — couple context (for future retargeting creative)
Model: `bytedance-seed/seedream-4.5` ($0.04 flat — lifestyle warmth)
Warm lifestyle photography, a close-up of two hands together, one hand with an elegant diamond engagement ring in gold, the other hand gently holding it, golden-hour warm light, cream linen background, romantic and intimate, no faces visible — hands only, soft film photography aesthetic, warm cream and gold colour palette, engagement announcement mood, no text, genuine and emotional
Brand Consistency Checklist for AI-Generated Images
Before using any generated image, verify:
- Background is either white/light marble OR pure black (no grey, no cluttered backgrounds)
- Ring metal matches the specified spec (white gold = cool silver tone, yellow gold = warm gold tone, platinum = very cool bright white)
- Any baked-in text is legible, correctly spelled, and uses a serif or refined sans-serif — not decorative or distorted
- Logo placement is bottom-right, small and unobtrusive
- Composition leaves clear space for Canva overlay placement (top 15% and/or bottom 25%) where applicable
- Lighting is soft and directional — no harsh blown-out highlights, no flat lighting
- The diamond appears to have genuine brilliance and fire — not dull or glassy
- No visible AI artefacts, distorted ring geometry, or incorrect prong counts
- Image resolution is sufficient for 1080px output (upscale if needed with Topaz/Magnific)
Prompt Variants for A/B Testing
Diamond on black — darker, more dramatic
Model: `black-forest-labs/flux.2-flex`
Fine jewellery product photography, extreme close-up of a round brilliant-cut loose diamond, pure void-black background, single pinpoint hard studio light from 45 degrees above-left creating maximum fire and scintillation, the diamond appears as a constellation of light points and rainbow flashes against total darkness, deep focus, 8K photorealistic, no surface texture visible — diamond floating in black space
Diamond on black — softer, more editorial
Model: `bytedance-seed/seedream-4.5`
High-end jewellery magazine photography, a round brilliant-cut loose diamond resting on a matte black textured slate surface, soft diffused side lighting creating gentle brilliance without harsh flare, the diamond reflecting its environment in its facets, subtle depth in the black background from the slate texture, editorial calm luxury aesthetic, Vogue jewellery supplement style, no text
Lifestyle ring — cooler tones (for testing against warm variant)
Model: `bytedance-seed/seedream-4.5`
Contemporary lifestyle photography, a woman's hand wearing a round brilliant diamond solitaire in white gold, cool natural overcast light, the hand resting on a smooth grey linen surface, blue-white light giving the diamond an icy brilliance, minimal modern aesthetic, cool grey and white colour palette, shallow depth of field, editorial fashion photography style, no face, no text
Reference: General/AI Image Model Capabilities — OpenRouter.md for full model specs and API usage.