Aquamarine

Aquamarine is the blue-to-blue-green variety of beryl — the same mineral family as emerald and morganite, colored by iron. The name is Latin for “sea water,” and that is exactly the read: a cool, transparent blue with none of emerald’s drama or inclusions.

Unlike emerald, aquamarine grows in large, clean crystals, so eye-clean stones of five, ten, even twenty-plus carats are readily available and affordable per carat. It is the relaxed member of the beryl family — durable enough for daily wear and almost always free of the fractures that make emerald high-maintenance.

Color

Treatments

The vast majority of aquamarine is heat-treated to drive off a yellow-green modifier and bring the blue forward. The treatment is permanent, stable, and trade-standard — it does not need re-doing and does not affect durability. Untreated stones with naturally strong blue exist but are uncommon.

Daily wear

At Mohs 7.75 with no cleavage worries in normal wear, aquamarine handles rings, earrings, and pendants without special care. It pairs cleanly with both white and yellow metals; white metals push the cool blue, yellow gold warms it.