Product Details: An art deco milgrain diamond engagement ring setting featuring a 5mm round cut Black Rutilated Quartz handcrafted in your choice of material which you can choose. This black tourmaline ring makes a lovely engagement/anniversary/promise ring for her. You also have the option to pair it with a matching band. Product Specifications: Engagement Ring: Metal Sterling Silver, 10k/14k/18k gold, Platinum Center Stone Black Rutilated Quartz Shape Round Weight approx 0.5 carat Size 5 mm Accent stones Moissanite Set Prong, Pave Set