Can it tell if my diamond is lab-grown?

Not from a photo; nobody can. It reads certificates and shows both prices so the difference is explicit.

How do I get the most accurate number?

Weigh the ring, read the hallmark, upload the certificate. Those three replace the biggest assumptions.

How accurate is the gold weight?

As accurate as the geometry. With a ring size or one measurement the range is typically within ±8–12%; hidden metal under stones and hollowed shanks widen the range, which we show explicitly.

Where does the daily price come from?

A public spot feed for XAU/USD refreshed daily, converted with daily FX rates into 25 currencies. Admins can override the spot price.

AI Jeweler

Diamond ring value calculator

Point it at your ring. It measures the stone against the band, weighs the metal, reads any certificate, and gives the retail, resale and making prices side by side, with natural and lab-grown one tap apart.

Value my ring Try the live demo

Stone from the photo or the paper

Size in mm from the photo, carat from the size; a GIA or IGI report replaces the estimate.

Metal at spot

Grams × purity × today's gold price, with the timestamp and exchange rate shown.

Honest resale

Scrap, dealer buy-back and private sale, so you know the range before you sell.

How it works

1
Upload photos
One or more angles of a ring, pendant, chain or bracelet; sketches and renders are fine.
2
AI models the construction
Band, setting, prongs, halo, stones and chain links are rebuilt as parametric geometry.
3
Calibrate
Give the ring size or one measurement; optionally the karat and stone details.
4
Edit by talking
“18K rose gold”, “2 carat centre stone”, “band 0.4 mm thicker”, “show it with emeralds”.
5
Weight, price, export
Volume-based gold weight for every karat, the day’s metal value in 25 currencies, STL for casting.

Ring calculators that ask you for the four Cs assume you know them. This one reads them from what you have: a photo, a certificate, a hallmark and a weight, and tells you what it assumed when it had to.

Why the three prices differ so much

New includes making, two margins and VAT. Resale strips them and pays scrap for the metal and a third of retail for the stone. Making cost is materials plus workshop hours. The same ring can be 5,000, 1,500 and 2,200.

Frequently asked

Can it tell if my diamond is lab-grown?: Not from a photo; nobody can. It reads certificates and shows both prices so the difference is explicit.
How do I get the most accurate number?: Weigh the ring, read the hallmark, upload the certificate. Those three replace the biggest assumptions.
How accurate is the gold weight?: As accurate as the geometry. With a ring size or one measurement the range is typically within ±8–12%; hidden metal under stones and hollowed shanks widen the range, which we show explicitly.
Where does the daily price come from?: A public spot feed for XAU/USD refreshed daily, converted with daily FX rates into 25 currencies. Admins can override the spot price.

Ready to try it on your own ring?

Your first complete generation is free. Private by default.

Value my ring