Le Vian (American, founded 1950). An 18k white gold ring set with alternating pattern of 36 step cut rubies (approx. 0.75 ctw, Si1-Si2 clarity range) and 96 modern round brilliant cut diamonds (approx. 0.50 ctw, G-H color range, Si1-Si2 clarity range). Marked for 18k gold quality and for maker. US ring size approx. 9.5. Total weight approx. 9.6 grams.