Our Entire Diamond Jewellery range is certified by 3rd Party certifying labs. Gold used in diamond jewellery is either 18K or 14K, hallmarked. Diamonds are certified by International Gemological Institute (IGI) / Diamond Research Institute and Laboratory (DRIL). A sample certificate is shown here:
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OTM Jewellery offers you a beautiful Diamond Pendant made with 8.87 grams hallmarked 14 K gold, and 130 diamonds weighing 2.44 carats. H-I Colour, certified by the International Gemological Institute (IGI) / Diamond Research Institute and Laboratory (DRIL) . Purity guaranteed.