Chrysoberyl is a great stone. It’s hard (8.5 on the Mohs scale) and has a nice refractive index: 1.74-1.75, so it will cut a lovely gemstone. It’s most famous manifestations are as a milk-and-honey cat’s eye or as the elusive natural Alexandrite, both of which rely on a phenomenal traits to define them. Chrysoberyl is also know for its twinning, sometimes creating a twinning triplet called a “trilling”.
While the stones we have for you don’t go that far down the phenomenon path, they display all of these signature features, and we think it makes them rather magical.
A lemon-lime greenish-yellow under cool light, these stone change to a honey orangish-gold in warm light. Not quite the red-green shift of the best Alexandrite, but there are hints of it here. That honey gold tone also brings to mind the most desirable color of Cat’s-eye Chrysoberyl.
Like Cat’s-eye, these stones aren’t without inclusion, but we think each of these stones will cut a treasured gemstone. Detailed clarity descriptions are below along with all the other details for each.
Total Weight grams: 2.55
Total Weight Carats: 12.7
Dimensions: 15 x 12.7 x 8.4 mm
Notes: This stone has one twinning plane and shallow fingerprint under the window. A second corner is also a twinned crystal. It may be possible to cut either of these corners off to give you one large and one smaller stone. Or if the window is used as the table of the gemstone, it is likely that corner will simply cut out completely. Other inclusions will likely be hidden under the crown, if they remain. Should yield a lovely eye clean stone once cut.