* Reference
Look anything up: six reference databases
The guides go deep on one question; these indexes cover everything — every hallmark, gemstone, karat, price, assay office, and gem lab.
- Guide01
How to Identify Jewelry from a Photo
Point your camera at a ring and read the metal, hallmark, gemstone, and an estimated value in seconds — here's exactly how.
Read the guide → - Guide02
How to Identify a Ring from a Photo
Read the stamp inside the band, name the metal and stone, and tell the style — how to identify a ring from one photo.
Read the guide → - Guide03
How to Identify a Necklace from a Photo
Find the stamp on the clasp, name the chain type, and tell real gold from plated — how to identify a necklace from one photo.
Read the guide → - Value04
How Much Is My Jewelry Worth?
Metal floor + stones + brand. How to estimate jewelry value from a photo — and why resale is less than the appraisal.
Read the guide → - Gemstones05
Is My Diamond Real? How to Tell at Home
Fog it, float it, read through it — seven at-home tests that separate a real diamond from moissanite and CZ, and when to get it certified.
Read the guide → - Hallmarks06
What Do the Numbers Stamped on Jewelry Mean?
750 is 18K gold, 585 is 14K, 925 is sterling silver. The full purity-stamp chart — plus what GP and GF really mean.
Read the guide →