This pendant is made with 10kt yellow gold and has a round lab-created blue sapphire gem that weighs 1 carat. The sapphire is set in a 4-prong setting. There are also small diamonds on the pendant which weigh 0.1 carats. The diamonds are pave-set and are G-H color with I2-I3 clarity. The entire pendant weighs 1.25 grams.Precious Metal Type: 10kt Yellow Gold Approx. Gram Weight: 1.24996 Total Gemstone Carat Weight: 1 Primary Gem Type: Lab Blue Sapphire Primary Gem Shape: Round Primary Gem Color: Blue Primary Gem Clarity: Flawless Primary Gem Setting: 4-prong Primary Gem Carat Weight: 1 Gem2 Type: Diamond Gem2 Shape: Round Gem2 Color: G-H Gem2 Clarity: I2-I3 Gem2 Setting: Pave-set Gem 2 Carat Weight: 0.1 Gem 3 Carat Weight: None