18 Karat White Gold Diamond Stud Earrings.0.43 Carat Total Diamond Weight. These diamond stud earrings create a look of iconic sophistication. Set in 18 k white gold, round diamonds in a round bezel, a pear-shaped bezel, and an emerald-shaped bezel provide enchanting contrast, reflecting the light in intricate patterns. A new classic, these diamond earrings are resolutely modern in their simple, evocative shape. Selecting the finest ethically sourced diamonds, Bijoux Birks artisans create timeless and exquisite designs.