This is a De Beers diamond ring. Although there are no accompanying items, I was informed by De Beers during the new polishing process that the center diamond of this product is 0.71ct, E color, and VS2. The table facet of the center diamond is engraved with DE BEERS and a serial number. (Visible only under a microscope.) The side melee diamonds are designed so that the ones closest to the center diamond are the largest, and they gradually decrease in size as they move away from the center. This is a diamond ring with a luxurious design♪ [Ring] Stone: Diamond Material: Platinum 950 Weight: 4.5g Size: Approximately 7.2 (Japanese size) Size adjustment: Not possible [Condition] Newly polished by De Beers [Accessories] None [Shipping Method] Sagawa Express (Ships within 1-2 days, excluding weekends and holidays.)