Are you a ruby, diamond, or emerald? Each month has its own birthstone with a special meaning. Here's a guide to each ...

Meet the phenomenal gemstones—nature’s optical illusions. Think color-changing alexandrites to star sapphires, moonstone, and more ...

Sophia Hirsh of Hirsh London gives expert advice on investing in colour gemstones and reveals some lesser known winners.

India has an abundance of mountains from where most stunning precious gems are mined. From rubies and emeralds to garnets and aquamarine, all are mined. India has a rich gemstone heritage that has ...

Special properties Alexandrite crystals have good thermal conductivity and fracture strength. Therefore, they are suitable for use in high power laser systems and are robust enough to withstand the ...