18K YELLOW GOLD, OPAL AND DIAMOND RINGHaving an Ethiopian 20mm by 18m oval cut cabochon dyed blue opal surrounded by side-mounted round cut diamonds; marked “k18” inside band
18K YELLOW GOLD, OPAL AND DIAMOND RINGHaving an Ethiopian 20mm by 18m oval cut cabochon dyed blue opal surrounded by side-mounted round cut diamonds; marked “k18” inside band