1.11 ct Blue Aquamarine - Trillion

At 1.11 carats, this aquamarine from Nigeria carries its blue color through a trillion cut, measuring 7.8 x 7.7 x 4.2 mm.

Aquamarine is the blue beryl, colored by iron, and grows in larger clean crystals than its cousin emerald, which is why it cuts so bright. Nigeria's gem fields rose to prominence in the 1990s and remain a significant modern source. It carries no treatment of any kind, so the color you see is the color that came out of the ground.

Its exact combination of color, cut, and origin is its own, the kind of center stone you choose on purpose and build a piece around. Hand-selected and photographed by Caveman Gems in good light, shown as honestly as a screen allows.