A mid century (circa 1950s) 18K white gold cluster ring is designed as a conglomerate of three old cut diamonds with a small single cut diamond between them flanked by three round natural unheated rubies.
One old European cut round diamond – 6.7 x 6.4 x 3.5 mm, I color, VS2 clarity, approximately 1 carat.
Two cushion cut diamonds: 5 x 4.9 x 3.4 mm, approximately 0.64 ct and 5.3 x 4.5 x 3.5 mm, approximately 0.70 ct, K/L color, VS2 / SI2 clarity.
Estimated total diamond weight 2.39 ct.
Estimated total ruby weight – 1 carat.
The ring is marked with 750 gold standard, maker’s mark and French owl-shaped import mark.
Width of the diamond – ruby cluster 16 mm (10/16 in.)
Ring size 7.5 (sizable)