aquamarine

An octopus carved from opaque aquamarine by artist Ronald Stevens. Approximately 4⅞ x 6¾ inches. Photo courtesy of liveauctioneers.com and…

An A-grade aquamarine with pale blue color and high clarity. Photo © International Gem Society.

48-ct cat’s eye aquamarine, Brazil. Photo © Joel E. Arem, PhD, FGA. Used with permission.

Santa Maria aquamarine, 1.30 cts, 7.5 x 7.4 mm, Brazil. Photo courtesy of liveauctioneers.com and Jasper52.

A gem-quality, natural aquamarine crystal. 7.5 x 3.8 x 3.2 cm, Jaqueto Mine, Bahia, Northeast Region, Brazil. © Rob Lavinsky, www.iRocks.com.…

A pin can hold a large aquamarine, like this 50-ct piece, more comfortably than a ring. Photo © Joel E. Arem, PhD, FGA. Used with permission.

107 carat greenish blue oval aquamarine. Photo © Joel E. Arem, PhD, FGA. Used with permission.

This B-grade aquamarine shows a deep greenish blue body color and appears heavily included. Photo © International Gem Society.

A-grade pear-shaped aquamarine. Photo © International Gem Society.