Lot 503 , A diamond ring, early 20th century

A diamond ring, early 20th century, set with a circular-cut diamond weighing approximately 0.65 carats, to knife-edge shoulders, mounted in gold and platinum, size P1/2, stamped 18CT PLAT
£300-500

Condition:
Diamond approximately H/I colour, I1 clarity, med-strong blue fluorescence, gross weight approximately 3 grams.

Sold for £360