Gorgeous 18K Gold Diamond Ruby Emerald Sapphire Duo Bypass Ring. This gorgeous set features numerous brilliant round diamonds, totaling .26 carats. The set also features one oval natural ruby, one oval natural sapphire and 2 natural oval emeralds, totaling 2 carats. Each ring spreads 3/4 of an inch wide. Each bypass ring could be worn together or separate. The ring is size 7.5 The pair weighs 4.8 grams.