Show me a 6 ct diamond on the hand — can the AI actually do this?

Yes. Upload a photo of your hand and the AI scales a 6-carat stone proportionally to your finger width and length. At 11.7mm+ the visual weight is significant — the simulator is the only realistic way to preview it before spending $50K-$150K. Works for round, oval, cushion and emerald cuts.

Does it work for finger sizing or just diamond size?

The simulator focuses on DIAMOND size (carat) proportional to your finger. It does not measure ring size (US 5, 6, 7…) — for that you still need a jeweler's sizing tool. But the simulator tells you whether a 2ct stone "fits" your finger proportionally, which is the harder visualization to get right.

How accurate is the diamond render vs the real thing?

Visual proportion accuracy is 90-95% — the AI preserves your hand exactly and scales the stone to its true mm width on your finger. What it does NOT capture: actual sparkle / brilliance / fire of the cut (which depends on real-world light). For proportion (the most expensive mistake) the render is reliable enough to commit thousands of dollars on.

Can I see a diamond on a man's hand?

Yes. The AI does not assume gender — it places the stone on whichever finger you specify on whichever hand you upload. Works for women's engagement rings, men's wedding bands, anniversary upgrades, push-presents.

Is my hand photo private?

Yes. Photos are processed in real time and never stored — the original is deleted immediately after the render. We do not train models on user uploads, do not share with jewelry brands, do not sell data.

Do I need to download an app?

No. Works in any browser (Chrome, Safari, Firefox, Edge) on phone, tablet or desktop. First render free, no account.

Can I show the simulator to my jeweler?

Yes. Download the render and bring it to your jeweler — many use it as a starting point for the custom design conversation. Most jewelers report fewer post-purchase regret cases when clients have used a simulator beforehand.

See how it works

Real example: same person, before and after.

Before — original photo, ready to try on virtual engagement ring try on virtually with AI

virtual engagement ring try on — item photo for virtual try-on with AI fitting

After — virtual engagement ring try on virtual try-on result on real body, AI generated

Diamond Size on Hand Simulator

Diamond size on hand simulator
see any carat — 1ct, 1.5ct, 2ct, 3ct, 6ct — on YOUR real hand.

Diamond size on hand simulator with AI — upload a photo of YOUR hand and instantly see any carat (0.5ct to 6ct+) on your real finger. Compare 1ct vs 1.5ct vs 2ct vs 3ct side by side. Stop guessing from a stock model image — see exactly how the proportional weight of a stone looks on your finger length, finger width, and skin tone. Critical before spending $5K-$50K on a stone.

Simulate a diamond on my handFREE✓ Free · ✓ No signup · ✓ 30 sec

Try it free now

Try it on your photo

11 free render · then unlock more

Photo of your hand

Diamond ring you want to size-check

Click to uploadOpen hand on neutral background, palm down or up

Custom

What this diamond size simulator actually does

A real-time AI render that places any diamond carat size on your real hand — preserving your finger length, knuckle width, skin tone, lighting, and angle. Unlike static "carat size guides" that show stones on stock-model fingers, this simulator uses YOUR hand, so the visual weight reflects your specific anatomy. A 2-carat round looks dramatically different on a long slender finger vs a short broader one; this is the tool that shows you the difference before you commit. Works for any cut — round brilliant, oval, cushion, princess, emerald, pear, marquise — and any setting (solitaire, halo, hidden halo, pavé). 100% free for the first render.

How to use the diamond simulator step by step

Take a flat photo of your hand on a neutral background, fingers slightly spread
Upload a reference image of the ring/carat size you want to see (any clean product photo works)
AI places the diamond on your ring finger in 30 seconds — same skin tone, same lighting
Use the chat to swap carat size ("show same setting in 1.5ct, 2ct, 3ct, 6ct") — render preserves your hand
Compare 3-4 carats side by side before deciding which size fits your finger best

Most-compared carat sizes

Carat sizes shoppers test most before buying

1 carat (6.5mm round)

Classic "engagement ring" reference — what most stock photos show. See how the proportion lands on YOUR finger before settling for the default.

1.5 carat (7.4mm round)

The "midnight upgrade" — only 0.5ct bigger than a 1ct but feels visibly larger. The simulator shows you whether the bump is worth $3K-$5K extra.

2 carat (8.1mm round)

The biggest jump in perceived size. On a long slender finger 2ct can look elegant; on a shorter finger it can dominate. Visualize before you commit.

3 carat (9.3mm round)

Statement size. Looks very different on petite hands vs broader knuckles. The simulator shows whether 3ct is "balanced" or "overflowing" on you.

4-5 carat (10-11mm)

Reserved for celebrity/influencer engagements. The simulator is the only realistic way to preview this size on a real, non-airbrushed hand.

6 carat (11.7mm+)

"Show me a 6 ct diamond on the hand" — a top GSC query. At this size proportion dominates: the AI shows you EXACTLY how 6ct sits across your finger width.

Caveats

What a diamond size simulator can NOT replace

In-person sparkle and brilliance

AI shows you proportion and color accurately. The actual fire / scintillation / brilliance of a real diamond requires seeing the stone in person under different lighting.

Stone quality / clarity assessment

The simulator does NOT evaluate VVS / VS / SI clarity, color grade, or cut precision. For that, use a GIA cert + IGI report from your jeweler.

Final professional sizing

The render shows visual proportion, not exact ring size in mm. Always get measured by a jeweler before placing the order.

Stop staring at stock carat-comparison charts

Every diamond-size chart shows a stranger's hand. This simulator shows YOUR hand. Spend 30 seconds, save yourself from a $5K-$20K size regret.

Try a diamond on my hand freeFREE

Diamond size on hand simulator — FAQ

Yes — the first render is 100% free with no signup and no credit card. You can compare carat sizes (1ct, 1.5ct, 2ct, 3ct, 6ct) on your real hand instantly. If you want to compare more than 2 carats side by side, packs start at $4.99 for 8 renders — one-time purchase, no subscription.

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Featured guides

See how it works

Diamond size on hand simulatorsee any carat — 1ct, 1.5ct, 2ct, 3ct, 6ct — on YOUR real hand.

Try it on your photo

What this diamond size simulator actually does

How to use the diamond simulator step by step

Carat sizes shoppers test most before buying

1 carat (6.5mm round)

1.5 carat (7.4mm round)

2 carat (8.1mm round)

3 carat (9.3mm round)

4-5 carat (10-11mm)

6 carat (11.7mm+)

What a diamond size simulator can NOT replace

In-person sparkle and brilliance

Stone quality / clarity assessment

Final professional sizing

Stop staring at stock carat-comparison charts

Diamond size on hand simulator — FAQ

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Diamond size on hand simulator
see any carat — 1ct, 1.5ct, 2ct, 3ct, 6ct — on YOUR real hand.