The GALE Riviera Tennis Chain Necklace features 79 round brilliant 50 pointer diamonds weighing a total of approximately 40 carats, set upon 18K Yellow Gold in a 4 prong setting. I1 Clarity H-I Color. Meticulously handcrafted to perfection in our own factory in the New York City Diamond District, just for you. It was identified and graded by a Graduate Gemologist who has been certified by the Gemological Institute of America (GIA). It also comes in a beautiful keepsake box, with a Lifetime guarantee, and Care Package. Style: DIAMOND RIVERA NECKLACE 4 PRONG Diamonds Diamond Size: 0.50 Carats Number of Diamonds: 79 Total Weight of Diamonds: 39.5 Carats Diamond Shape: Round Brilliant Diamond Color: H-I Diamond Clarity: I1 Setting Metal: 18K GOLD Metal Color: YELLOW GOLD Set: 4 Prong