This is a necklace made of 10-karat yellow gold and set with round diamonds. The necklace weighs 0.77 grams and the diamonds have a total weight of 1/2 carat. The main diamond is round, G-H in color, and has an I2 clarity rating. It is prong-set and weighs 0.29 carats. The smaller diamonds are also round, G-H in color, and have an I2 clarity rating. They are pave-set and weigh a total of 0.21 carats. There is no third gemstone.Precious Metal Type: 10kt Yellow Gold Approx. Gram Weight: 0.77 Total Gemstone Carat Weight: 1/2 Primary Gem Type: Diamond Primary Gem Shape: Round Primary Gem Color: G-H Primary Gem Clarity: I2 Primary Gem Setting: Prong-set Primary Gem Carat Weight: 0.29 Gem2 Type: Diamond Gem2 Shape: Round Gem2 Color: G-H Gem2 Clarity: I2 Gem2 Setting: Pave-set Gem 2 Carat Weight: 0.21 Gem 3 Carat Weight: None