10k Yellow Gold Sapphire And Diamond Cross With 18 Inch Chain 1.2 Grams. This cross is set with four dark blue sapphires that measure 2.8 to 3 mm by 1.5 to 1.8 mm for a .20 carats by calculation. Set in the center of the cross is a natural round diamond. This pendant comes with an 18" chain with a spring ring clasp. This pendant has been hallmarked and tested 10k and weighs 1.2 Grams. Shipped with first class shipping with insurance and signature tracking.