This has spent over 4 years in the box, and not worn very long at the time it was given to me. - please let me know if there are any other questions !! Material: 18K WHITE GOLD Center Stone: Aquamarine Size & Shape: 6 mm & Round shape Side Stones: Moissanite Shape: Round Carat: approx 0.472 cT Total Weight: approx 2.75 g Shank Width: 2 mm Shank Thickness: 1.2 mm Ring Head Height: about 5.9 mm