This gemstone is a round Cut 8.5mm 2CT VVS1 Certified Blue Diamond Moissanite. The gemstone tests as Diamond. The Diamond is set in a 925 Sterling Silver Size 7 setting. The Diamond was set in the prong setting without epoxy and can be removed if you would like it reset. The vivid blue diamond offers brilliant sparkle and everyday style. The certification will come with the ring. am selling this diamond ring with certification for what I purchased it for plus shipping. I will not accept lower offers. This ring will come in a very nice quality lighted jewelry box or a larger PU leather travel jewelry case. Your choice at check out. I purchased this Blue diamond as a natural certified gemstone. It was tested as diamond with a presidium and taken to a jeweler who tested it with a Yehuda Sherlock. This diamond is a high quality Moissionate Diamond.