1/2 Carat GIA Certified Solitaire Diamond Stud Earrings Round Brilliant Shape 3 Prong Martini/Cocktail Style Screw Back (H Color, SI2 Clarity, 0.5 ctw) Houston Diamond District offers a 30 day return policy on all of its products We only sell 100% Natural, conflict free diamonds. Direct Manufacturer Prices & Free Certificate of Authenticity