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  • What is the Difference Between a Certified and Non-Certified Diamonds?

    Every diamond shopper would definitely know one mandatory aspect of buying these precious stones: diamond grading certificates. You are suggested to purchase diamond jewellery that come with diamond grading certificates issued by agencies, such as GIA, SGL, IGI, and more. Both natural and lab-grown stones (synthetic diamonds) must come with their certificates specifying their characteristics and 4Cs. If ever, a diamond purchase accompanies not receiving certificate from the retailer (online or offline), the product is deemed fake.

    But do all diamonds come with a certificate that prove their authenticity? Or, do these precious stones also come without grading documents that are suitable for purchase? In this guide, we’ll answer the question that baffles the mind of many buyers: what is the difference between certified and non-certified diamonds?

    Characteristics of Certified Diamonds

    A ‘certified’ diamond is the polished and cut precious stone that has been examined and approved by a gemologist. These rocks carry different characteristics, which are all recorded in a grading document by the certifying agency and the gemologist. Usually, the 4Cs, source of origin, report number, and diamond measurements are specified in the grading report. Agencies like GIA, DGLA, IGI, SGL, and AGS are popular for grading diamonds of all types.

    Grading a diamond regulates its price in the market and helps consumer identify the different diamond types during their purchase. Buying certified diamonds from a reputable jewellery retailer is recommended and highly affordable.

    All the diamond jewellery items sold by Melorra are certified and come with SGL/IGI grading certificate.

    Characteristics of Non-Certified Diamonds

    Not all diamonds are graded. Small and inexpensive diamond stones come with grading documents as they offer negligible benefit to the buyers and add significantly to the diamond cost. The only difference between a certified and non-certified diamond stone is the grading document and the assurance of the purchase being real. However, a non-certified diamond could be a good and smart buy, if you shop from a trusted jeweller who might not provide certificate but have your trust.

    You can always find non-certified diamond easily in the market and won’t have to pay as much as the certified diamond. But you need to be highly careful while dealing in such scenarios as fake rocks could be sold as non-certified diamonds.

    Certified vs. Non-Certified Diamonds

    ·         A certified diamond’s price and consumer demand is based on its characteristics. The report will provide evidence to the fact if the stone is d=gem grade, for commercial use, or unfit for jewellery making purpose.

    ·         An uncertified diamond does not mean it is not real or right for jewellery items. Often, diamond jewellers and retailers overlook grading the diamonds to sell them as affordable rates, which are perfect for consumers looking for a thrift buy.

    ·         Usually, small and mid-sized diamond stones are overlooked for grading. Large and high-quality diamonds are graded even before they are put in the market.

    ·         The increase in e-commerce and online jewellery stores has significantly surged the number of certified diamonds in the market. Buyers are unlikely to shop for diamond rocks that, which come without grading reports.

    ·         No matter your choice of diamond jewellery (or loose), we recommend you to exercise caution and shop smartly before finalizing your purchase. Always buy from trusted diamond retailer (offline or online).


    MelMelorra has other guide pages on Gold, Solitaire, and Gemstone jewellery designs. You can also explore gold rate and gold coins price on the website.