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Diamonds come in several shades. While the colourless diamond stones are the favourite of every buyer, fancy coloured diamond rocks are slowly gaining traction and popularity among the consumers. However, shoppers are still confused about the authenticity and originality of these stones. When colourless diamond rocks come with certifications from international and national grading agencies, fancy coloured precious stones might or might not have certificates.
But as a consumer, you need to know if your colour diamonds are natural or synthetic or treated in the lab. All these distinctions hugely impact the rate and demand of such fancy diamonds in the market. This guide will help you understand the certificate that comes with fancy coloured diamonds and assist you in deciding if buying shaded diamond jewellery is worth the price.
You already know that there are different diamond certificates for colourless natural and lab-treated rocks. The same grading agencies offer documents for coloured diamond stones as well, and others are specifically famous for providing certificates for fancy coloured diamonds.
· GIA: The most notable diamond grading in the world is GIA. It offers certificates for almost all the stone types, be it naturally available in the colour form or lab-treated to induce a specific colour.
· AGS: This diamond grading document is popular for their colour grading certificates, that are even believed to be better and precise than GIA’s. Often, AGS certified diamonds are better deals for buyers as a result of their stricter clarity grades.
· IGI: Around for nearly three decades, IGI is ideal for grading lab-treated and created diamonds. Any fancy coloured diamond that comes with IGI certificate is good to go for buying.
· GRS: GemResearch Swisslab is a leading Swiss-based diamond grading lab with offices across Asia. Their speciality lies in grading coloured diamonds and are respected by jewellers across the world.
· AIGS: Asian Institute of Gemological Sciences is the first and oldest Bangkok-based diamond grading agency that is famous for certifying coloured gemstones as well as diamond rocks.
· GIT: Another Bangkok-based lab, GIT, specializes in grading coloured stones and go-to for the toughest identifications using the best analytical tools and experts at their disposal.
In many ways, a certificate for coloured diamonds is similar to colourless stones except for a few additions. In the documents issued for the colourless diamond stone, the emphasis is mostly on the 4Cs of a diamond: cut, colour, clarity, and carat. However, in the fancy coloured diamonds, the certificate carries vital information about the cut and the colour, and the last 2Cs does not carry much weight.
The colour aspect of the diamond is rightly given more importance, and the certificate holds information regarding the stone’s weight, its natural origin, and the possible treatments. Since coloured diamonds are rare in nature, many natural stones are treated artificially to induce or enhance their existing colour. While it does not impact the originality of the stone, it does determine the price and consumer demand. That is why, if a coloured diamond is treated for enhancement, it is essential for you to know how to read the certificate. All such information is present on the grading document, and you can ask your retailer to walk you through the information present in the document.
You can also contact the customer relation executive of Melorra and shoot your queries regarding reading diamond certificates or anything related to jewellery on the below contact details:
whatsapp = 7892170291
contact = 08066040000
Additional links you can explore on Melorra: