Lot 393 , A rock crystal, onyx and diamond ring, early 20th century and later

A rock crystal, onyx and diamond ring, early 20th century and later, the frosted rock crystal button centring on a section of carved onyx set with a circular-cut diamond weighing approximately 0.10 carats, later mounted with a gold ring band, size M1/2, gross weight approximately 2 grams
£100-150

Sold for £120