This is a Harry Winston diamond ring. The diamond is a colorless D color, VS2 clarity (difficult to find inclusions even with a loupe), and Triple EXCELLENT, so it sparkles beautifully. It's a HW ring from a popular series♪ [Ring] Center Stone: Diamond Weight: 0.50ct Color: D Clarity: VS2 Cut: EXCELLENT Polish: EXCELLENT Symmetry: EXCELLENT Fluorescence: NONE Material: Platinum 950 Weight: 4.8g Size: 7.5 Size Adjustment: Not possible [Condition] Finished to a like-new condition [Accessories] GIA Certificate Harry Winston Case [Source] Used goods market and dealers that handle only authentic products [Shipping Method] Sagawa Express (Ships within 1-2 business days, excluding weekends and holidays.)