Diamond Grading Report

The Five C's Of Your Precious Stone

Say “diamond” and people assume that you are talking about an expensive gemstone.

In reality, however, not all diamonds are worth as much as popularly perceived. The presence of impurities, mistakes in cutting, and other problems can greatly lower the value of the gem. While no sizable diamonds can really be called "cheap," there is definitely enough of a range to make it worthwhile to insist on a diamond grading report before you buy one. 


The most valuable diamonds are the perfect ones. These have no impurities and have been perfectly cut. However, most diamonds are not 100 percent pure. In fact, it is likely that a truly pure diamond came from a lab, though there are some exceptions.  


Most diamonds do have at least a little imperfection, typically caused by the natural inclusion of some other minerals in the stone. Some, however, have quite a lot – enough to make the entire gem look cloudy or colored. These are the cheapest diamonds, even if they are perfectly cut.


If you're thinking of buying or selling an ungraded diamond, you should look for a a company that can certify the grade of your gem. In Singapore, Big Lab Research is an established firm with the necessary experience and expertise, acknowledged in the industry, to grade and appraise precious and semi-precious stones.

The appraisal of gemstones apart from diamonds is also done by diamond grading companies. If you have jewelry with rubies, quartz, or anything else that is of geological origin, or semi-precious stones, they can also be graded and appraised.

With a grading, appraisers will provide a certificate that includes the results and certificates from a company is well-respected will be acceptable to both buyers and sellers.