Diamonds, a woman's best friend. Counterfeit diamonds are notorious for being frequent and widespread. Learn how you can detect conterfeit diamonds quickly and non-destructively with Raman technologies

The most valuable coral, the noble red, also called corallicum rubrum, is  favored worldwide for its hardness, beauty, and sanguine hue. Many common enhancements are performed on coral in the modern market,  spoiling their natural qualities in the process.

The price for fine-quality jadeite has risen dramatically along with China’s economic rise. The demand from those who can newly afford it has significantly outpaced the supply of this rare material.
 

Nephrite jade is found in darker shades of green that are almost black. Older traditional Chinese jades are typically carved from nephrite jade

Ruby and Sappire gemstones are popular for their bright, vibrant colors 

Pearl gems are probably the most loved gems of all time. Seductive strands, warm to the touch. Learn how to detect imitation pearls made from glass or plastic. 

Emeralds are fascinating gemstones. They have the most beautiful, most intense and most radiant green that can possibly be imagined.