Yellow Sapphire Jewelry Fine Oval Yellow Sapphire & Diamond Ring January 31, 2012 admin Leave a comment This intense yellow oval sapphire stone, weighing over 9 carats, is prong set in 18k white gold and micro-set diamonds. Oval yellow sapphire stone = 9.10cts Diamonds = 0.73cts This stone is certified by AGTA Style #M1638 Design by Leon Mason