This Diamond Necklace features graduating Diamonds set in bezel setting with a flowing contour showcasing the movement of the rolling ocean wave Material: Gold Karat: 14K Stone: Diamond Stone Colour: White Stone Carat: 0.28 ct Stone Type: HI.VS Stone Shape: Round Brilliant Stone Setting Type: Bezel Dimensions: Adjustable to any length you wish with the ball closure. Maximum length: 45 cm Does it come with certificate? IGI Can the piece be engraved? Yes Please Note: the carat weight is always an average, due to the uniqueness and craftsmanship of each piece. The carat weight may differ 10% more or less than the specified weight. Also please allow 5-8 weeks for Production and Certification from order date.