Hallmark Signs Of Diamond Jewellery

Hallmark Signs Of Diamond Jewellery

Who doesn’t love a glittery diamond? For many of us, purchasing diamond jewellery means something special as it can be a once-in-a-lifetime event. Because of that, we deserve to get the best diamond that fits our criteria.

Having said that, how do we know the worth of a diamond? There are a few standard signs which help to determine that. These are broadly classified as the 5 C’s – Cut, Clarity, Colour, Carat and Certificate. Together, they decide the quality and cost of this precious gem.


A diamond is not only a way of showing our loved ones how much we care for them, but it is also an investment. There needs to be a standard that can guarantee a diamond’s brilliance. This is where certification comes in the picture.

A certificate is an official document which takes into account all the relevant factors, and states the true value of gems. Certified gemmologists evaluate the diamonds in independent laboratories and certify them accordingly.

A diamond certificate will state the 4 C’s mentioned above i.e the Cut, Clarity, Colour and Carat. It also describes things like grade of polish and imperfections, and comes with a detailed sketch of the diamond. A certificate also helps to estimate the replacement value of the stone.

The following is a list of some of the most valued diamond certification labs:


The Gemmological Institute of America (GIA) is considered the world’s leading authority in gemmology. The Global standards to measure the quality of a diamond (Cut, Clarity, Colour, and Carat) were created by GIA. They set a benchmark for reliability in diamond reports.


The International Gemmological Institute (IGI) constitutes the largest laboratory that certifies diamonds and fine jewellery. ItUntitled-1
adheres to strict international standards that is trusted across the globe. It even boasts of customised formats for its certificates that satisfy different sections of the world market.


Solitaire Gemmological Laboratories (SGL) is an independent international laboratory with branches across the world. They form a seamless network and use the same process and methodology to achieve a global standard. The sophisticated technology and top-of-the-line service makes it a worthy contender for diamond reports.

Honourable Mentions

European Gemmological Laboratories (EGL), HRD Certification, The Diamond High Council, and Asian Institute of Gemmological Sciences are other institutes whose certifications can testify the quality of a diamond.

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