Costco offers the highest quality diamonds at the lowest possible price. So, it’s no mystery why savvy shoppers turn to us first, for their important jewelry purchases. Costco boasts a beautiful selection of diamond studs in numerous sizes and price points, so everyone can find something they love. We also make searching easy, by letting you filter by cut, color, clarity, and composition. You can choose from petite round brilliant diamonds, to show-stopping 3.00-carat diamonds. For more versatility, consider combining your diamond studs with a gorgeous pair of earring jackets. So start shopping now, and discover the diamond stud earrings you’ve always wanted.