As I posted before about preparing engagement diamonds for betrothal or wedding, today I write an article about preparing of buying diamonds, such as Helzberg diamonds. Before you buy a diamond, I think this posting is good for you.
Certificates and Loose Diamonds
A certificate of diamond is exact measurements and weight, as well as the details of its cut and quality. It precisely points out all the individual characteristics of the diamonds stone. Certificates also tell about the proof of the diamond’s identity and value. But certificate of diamonds is different from an appraisal. A certificate explains the quality of a diamond, but it does not place a monetary value on the gem. An appraisal places a monetary value on your diamond, but does not certify the quality of the diamond.
Diamonds are truly special gift, whether given to our wife or parent as a birthday or holiday present, a promise ring, an engagement ring, or for a special anniversary. Diamond jewelry given as a present, or even purchased on one’s own, is a special event. That is why checking the certificate of diamonds you want to buy is important. If a diamonds store offers to sell you a loose diamond without a certificate, keep in mind that it means you are buying the diamond based only on the salesperson’s claim about its quality, and that a trained gemologist or even other jewelers may disagree with the salesperson’s assessment.
Besides, shopping for certified diamonds allows you to make an informed choice about your diamond selections and to comparison shop among various diamond merchants. You can compare one diamond with a particular weight and quality with other diamonds of similar weight and quality to determine which diamond is the better value or which merchant has the best prices.
Certified Diamond has Quality Rating of 4 Cs Certified diamonds are graded on at least four quality criteria (4 Cs):
Cut
Cut refers both to the proportions and finish of a polished diamond. As one of “the Four Cs” of diamond value, it is the only man-made contribution to a diamond’s beauty and value.
Clarity
A diamond’s clarity refers to the presence of identifying characteristics on and within the diamond. While most of these clarity characteristics are inherent qualities of the rough diamond and have been present since the earliest stages of the diamond crystal’s growth below ground, a few clarity flaws are actually a result of the harsh stress that a diamond undergoes during the cutting process itself.
Color
A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality almost no gem-sized natural diamonds are absolutely perfect. The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice.
Carat
Carat shows the unit of weight by which a diamond is measured. One carat equals 200 milligrams, or 0.2 grams. The word comes from the carob bean, whose consistent weight was used in times past to measure gemstones There are more ratings and measurements noted on certified diamonds, but Cs is represented as the general fall under the diamond’s grade.
Who Issues Certificates?

Gemological Institute of America (GIA) and the American Gem Society (AGS) are the two most widely regarded and recognized diamond grading labs in the world. But we can find many diamond labs that issue certificates, besides of them. Every different lab has different grading standards, and some labs will be more lenient with their standards than others. Many jewelers recommended the diamonds buyer to purchase diamonds that offers GIA or AGS certificate as these labs have consistently demonstrated their commitment to high standards. If you prefer to buy diamonds with other certificates (non GIA or AGS), you need to ask for credential of the certifying lab.






