Antique Victorian 10k Gutta Percha Cameo Ring

Antique Victorian large oval cameo mourning ring, bezel set in 10k yellow gold. Cameo is black gutta percha on a dark amber glass background. Heavy ring. Likely converted from a brooch. Very slight movement of cameo in bezel due to age, but it is secure. This could be tightened by a jeweler. 13.0 grams Size 7.25 Cameo is 38.1 mm in length.