We invite you to explore this handy guide to help you identify and explore your newest additions to your rock collection.

GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s …

Jan 23, 2026 · A gemstone identification chart will have pictures and descriptions of rough gemstones that you can use to help identify your gemstones. Determine the color, luster, shape, texture, and …

The identification chart provides a snapshot of critical gemstone information. It typically lists gemstones alongside attributes such as their color spectrum, hardness, luster, and common patterns.

National Gem Lab is providing Unique gemstone identification chart to search easily from our search bar to find Refractive Index, Hardness & Specifc gravity

Raw gemstones come in various forms which are recognized by their particular crystal structure or shapes. Here is list of raw gems with their pictures

A gemstone identification chart, combined with illustrative pictures, serves as a fundamental resource for both budding enthusiasts and seasoned collectors alike.

Enter the fascinating world of gemstone identification and discover the natural beauty and vibrant hues of raw gemstones in their most innate form.

Table of Refractive Indices and Double Refraction of Selected Gems Refractive indices and double refraction (birefringence) help gemologists identify gems. The following table lists these values for …

Feb 17, 2025 · Raw gemstones have always fascinated people because of their distinct qualities and inherent beauty. Their rich colors, complex textures, and intriguing shapes appeal to both collectors …