What Are Certified Diamonds?

A certified diamond is a diamond that has been graded, tested and examined by a team of independent fully trained gemologists who then issue a Diamond certificate for that diamond.

A diamond certificate is a blueprint of a loose diamond that has been certified.

A diamond certificate can also be called a diamond grading report or diamond dossier. The diamond certificate documents the diamond’s exact measurements and weight, as well as the details of its cut and quality. It precisely points out all the individual characteristics of the stone, inclusions and any flaws.

When shopping for loose diamonds it is extremely important that you buy a certified diamond. You can compare one certified diamond with a particular weight and quality with other certified diamonds of similar weight and quality to determine which certified loose diamond has the better value.

A diamond certificate allows you to make an informed choice when buying loose diamonds.

A certified diamond provides consumers with confidence, security and increases comfort levels while making a decision on which loose diamond to purchase. Before purchasing a loose diamond, you should expect to review a copy of its diamond certificate, as this is your only guarantee of the quality and value of that diamond. Certified diamonds help provide consumer confidence.

A diamond certificate documents the characteristics of the diamonds quality; the colour, cut, clarity & carat weight of the diamond are verified by an independent company with no conflict of interest between buyer and seller.

The true test to evaluate a diamond is to view it in person and compare it with other diamonds. Nothing beats seeing a diamond in person to determine whether it is a ‘good’ diamond to your eye or not. Diamond appreciation is a very personal thing and different people will prefer different things about different diamonds. At the end of the day all the numbers and photos in the world mean nothing if you do not like the diamond in person.

Many jewellers and diamond dealers will use terms like Hearts and Arrows, Ideal, Excellent, Russian Cut, Belgium Cut, Fine Make and others to describe their diamonds, with the intention of portraying them as ‘better’ than others. Be wary of accepting these terms as is. They are especially dangerous when assigned to diamonds by the jeweller or diamond dealer themselves without third-party independent support.

There are many different diamond grading laboratories available to the diamond-buying public. Some of the more well known grading laboratories are: GIA (Gemological Institute of America), DCLA (Diamond Certification Laboratory of Australia), AGS (American Gemological Society), HRD (Hoge Raad Voor Diamant; Diamond High Council), EGL (European Gemological Institute) and the IGI (International Gemological Institute).

Each of these diamond grading laboratories has their own criteria and method of grading loose diamonds, but they all operate within a high set of parameters, in regards to grading a diamond’s attributes and dimensions. Be aware that as each grading laboratory has its own methods, each grading laboratory also has its own expense guides for preparing a certificate and these grading laboratories differ in their standards and level of strictness.

It is important to keep in mind the fact that not all diamond grading laboratories are as well respected or as stringent in their grading as each other. Diamond grading laboratories should always be independent of any diamond retailers or wholesalers, to avoid any conflict of interests or bias. Diamond Certificates are only of value when they are issued by an independent accredited diamond grading laboratory. Always make certain to identify the source of the certificate or diamond grading report. If you have not heard of the laboratory, it could very well be associated in some way with the store, jeweller or diamond wholesaler itself, and so have a vested interest in aiding the sale.

Before you buy a diamond you should always, as a first priority, insist on an independent diamond grading certificate from an accredited laboratory to support any added claims about a diamond.

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