A dreamy, romanticAlb Alexandrite engagement ring set featuring a pear shaped color changed center stonehandcrafted in your choice of material which you can choose.. This halo diamond ring makes a lovely engagement/anniversary/promise ring for her. Product Information Engagement Ring: Metal Sterling Silver, 10k/14k/18k gold, Platinum Center Stone Alexandrite Shape Pear Weight Approx 1 carat Size 5x7 mm Accent stones Diamonds Set Prong, Pave Set Matching band: Natural conflict free si-h diamonds