Their Uma Wave ring reflects the lapping ocean waves, the diamonds are beautifully set in Channel setting perfect for everyday wear Material: Gold Karat: 14K Stone: Diamond Stone Colour: White Stone Carat: 0.15 ct Stone Type: Hi-VS Stone Shape: Round Brilliant 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.