I just love these these rose cut cabs and choose the more interesting ones for rings, that way you can watch the stone does.  This one has amazing color which is deeper when seen from the sides and the epidote crystal inclusions create the illusion that you’re looking underwater.

18ky and sterling 

3.62 ct rose cut aquamarine backed by fine silver

forged and fabricated

21 mm wide x 24.3 mm high x 15.4 mm deep

size 6 3/4, can be sized

This ring has found a home, but if you would like one similar let me know and I‘ll see what I can come up with.