Lot 510 , An opal and diamond ring, mid 20th century

An opal and diamond ring, mid 20th century, set with a section of opal carved as a pansy measuring approximately 17 x 12mm, centring on a collet-set circular-cut diamond weighing approximately 0.10 carats, mounted in white metal, size I1/2, gross weight approximately 4.9 grams
£200-300