Large specimen of raw aquamarine is nice and clear - facet or cabochon quality. Natural blue color. Weighs 102 carats and measures 1.65" x 1.20" x .65". Shown dry, with and without flashlights from all sides. One pic is a scan; all others are photos. Aquamarine is the birthstone for March (Pisces). It is a blue variety of beryl. Other beryls are emerald and morganite. Refractive index authenticated.