A light blue to deep blue or bluish-green gemstone, with the most valuable one being pure blue. Aquamarines are faceted more often than not. However, a cabochon cut aquamarine produces a cat's eye reflective effect.
Jewelry Glossary
Aquamarine
More terms starting with A
Keep learning
Our education centre covers diamonds, precious metals, gemstones, and how to choose a ring in far more depth than a definition allows.