Caram is featured in InColor Magazine, the official publication of the International Colored Gemstone Association (ICA), with an in-depth editorial exploring the history, beauty, and modern renaissance of spinel

From emeralds to alexandrite, rare gemstones embody both beauty and legacy. Discover Caram’s guide to ranking gemstones by rarity and value — and learn how collectors identify heirloom gems that endure as both treasures and investments.

Alexandrite is known for its color-changing ability; this gemstone can transform from green in daylight to red under incandescent light.