This is a natural diamond ring from MONAKA jewelry. It has a gray color and sparkles beautifully. It's very cute! It's size 8.5, but the band is thin, so it fit my size 9 finger. Diamond size: Length approx. 5mm, Width approx. 6mm (including the setting. Please note that there may be slight variations due to amateur measurements) K18 Yellow Gold Diamond setting is K18WG Accessories: Certificate of authenticity Although it is a beautiful item, it is a used item. Please understand that the condition is subjective, and we appreciate your purchase if you understand this. I have a cat. I am careful, but please refrain from purchasing if you have allergies or are concerned. I am sorry, but I will refuse to do business with those with an evaluation of 0 or those with many "bad" evaluations. Cancellations, returns, and claims are not accepted after purchase. Please feel free to ask any questions you may have(^^) Thank you very much! Also recommended for those who like the following brands: #tatsuonagahata #タツオナガハタ #irodoristone #イロドリストーン #irodorijewelry #イロドリジュエリー #ギクラ #GICLAT #timejewelry #BIZOUX #ビズー #agete #アガット #アッシュペーフランス #monaka #モナカ #Cloche #クロチェ #BARNEYSNEWYORK #バーニーズニューヨーク #MARIHA #マリハ #KAORU #アトリエカオル #moemisugimura