silver-tone 18K white gold 18K yellow gold pavé and prong-set multi-cut diamonds totalling 2.89 carats butterfly fastening Normal everyday use and external agents may reduce the lustre of gemstones and gold surfaces. To maintain, use specific, non-abrasive products specially meant for cleaning jewellery. These earrings come as a pair. Includes an IGI Diamond Report. This certification from the International Gemological Institute assesses diamonds' cut, colour, clarity and carat weight according to strict international standards.