This is a K18 ring from Agete, sold as a limited edition. The ring features a marquise-cut white sapphire and diamonds as the main stones. The surrounding diamonds are a mix of brilliant-cut and rose-cut diamonds, offering a variety of sparkle. The rose-cut diamonds have a soft, lustrous glow and are transparent, allowing the yellow gold of the base metal to shine through, creating a rich and dimensional sparkle. It is no longer available for sale. The delicate milgrain detailing and the shape of the shank give it the feel of antique jewelry. I purchased it along with a matching necklace. (The necklace is not included in the set; this is for the ring only.) It's in good condition as it has been used sparingly. [Brand] agete [Materials] 18K Yellow Gold White Sapphire (no carat weight) Diamonds 0.05ct [Hallmarks] Brand mark K18 0.05 [Size] Size 9 [Accessories] None