Product Details: A genuine faceted Round Tourmalinated Quartz is ready to be cast in setting of your choice.black rutilated quartz ring is a great gift for engagement, anniversary, birthday, party or banquet.This Cluster Halo Black Rutilated Quartz Engagement Ring have four shape center stones types for you to choose:Pear Cut,Round Cut, Oval Shape andCushion Shape. Certainly, bbbgem could offer gemstone custom service, just feel free to contact us your favourite stone and shape. We could give you the 3D-drawing before ring making. Noted: If you choose Sterling Silver, the side stones could be CZ diamond. Product Specifications: Cluster Round Black Tourmaline Engagement Ring: Metal Sterling Silver, 10k/14k/18k gold, Platinum Center Stone NaturalBlack Rutilated Quartz Shape Round Cut Size 6.5mm Gold Weight About 3.3g if choose 14k Side Stone 0.88ct Marquise Shaped & Round Cut Moissanite/CZ Diamond Set 4-Prong