GemBazaar — AI Gemstone Analysis from a Photo
GemBazaar (https://gembazaar.vip) is a free web tool built in Ratnapura, Sri Lanka — the world's gem capital. Upload a photo of any gemstone and get an instant professional-grade report: gem identification, color grade, clarity grade, cut and shape, likely origin (Ceylon, Burma, Madagascar), treatment detection, simulant risk, quality score out of 100, and a market value estimate in USD per carat.
This page uses JavaScript for the interactive analyzer. Please enable JavaScript to upload a gem photo, or read the summary below.
What GemBazaar analyzes
Ceylon blue sapphire (our flagship, including Peacock blue — Sri Lanka's signature color), padparadscha, ruby, emerald, alexandrite, yellow sapphire, aquamarine, garnet, spinel, tourmaline, zircon, moonstone, cat's eye chrysoberyl, topaz, peridot, amethyst, citrine and 75+ other varieties. Grading vocabulary follows GIA, CIBJO and Lotus Gemology standards: clarity types I–III with eye-clean / VVS / VS / SI / Included grades, Lotus color types for sapphire, and hedged treatment cues (heat treatment, glass filling, beryllium diffusion, dyeing) that are suggestive, never proven from a photo alone.
How it works
1. Upload a clear, well-lit photo of your gemstone (JPG, PNG or WEBP). 2. A two-stage AI reads the stone's visual facts — hue, tone, saturation, inclusions, treatment cues, simulant red flags. 3. A gemological engine grades it against a verified reference database plus live Ratnapura dealer-market prices, and returns a report in under a minute.
Frequently asked questions
How much is a 1 carat Ceylon blue sapphire worth? A commercial-grade heated 1 ct Ceylon blue sapphire runs roughly USD 500–2,000 per carat; unheated stones USD 1,000–4,000. Fine Royal Blue or Peacock blue unheated stones reach USD 4,675–8,000+ per carat. Ratnapura dealer-market base prices are typically USD 400–1,500 per carat before retail markups of 200–400%.
Can AI identify a gemstone from a photo? Yes, for screening. Photo analysis is suggestive, not lab certainty — for valuable stones, certification from NGJA, GRS, GIA or Gübelin is always recommended.
How do I know if my sapphire is real or synthetic? Red flags: round gas bubbles and curved growth striae (Verneuil flame-fusion synthetics), uniform oversaturated color, blue or orange flashes in fissures (glass filling), color zones following the facet shape (lattice diffusion). A flawless-looking 2–3 carat sapphire offered for $50–100 is almost always synthetic.
What is geuda sapphire? Geuda is milky Sri Lankan sapphire rough that transforms into transparent blue gems when heat-treated at around 1600–1800°C. About 70–80% of Sri Lankan sapphire production is heated geuda. Rough geuda trades in LKR per carat at the Ratnapura morning markets.
Where do Sri Lanka's sapphires trade? Ratnapura — the "City of Gems" — hosts morning street markets at the Clock Tower and Demuwawatha lanes, trading rough stones by whispered bids and handshake deals. Sri Lankan gem exports reached USD 188.6M in 2025 (+74.2% year on year); the sector targets USD 1B in 2026. Tourist-facing asking prices are often 10–20× real value.
More
GEM, our AI gem-expert chat assistant, answers questions on sapphire prices, treatments, fake detection and the Ratnapura gem market — 2 free questions, then a free account unlocks unlimited chat. A public live market price API is available at https://gembazaar.vip/api/prices.
GemBazaar is built by VertexElite — Nirmal Liyon, Sri Lanka. https://vertexelite.org