HOW TO EVALUATE A DIAMOND CORRECTLY?
If you’re looking for buying jewelry and specifically when it comes to precious diamonds, how do you ensure if it’s pure or not? Your head must be popping up with all sorts of questions ranging from what should I buy, so- are they even real diamonds and worth the price you are paying? The key to understanding a diamond and its value is to understand the four attributes of diamond quality.
The International Diamond Grading System, GIA (Gemological Institute of America) is the world’s trusted source for unbiased assessment. Established in 1931, non-profit GIA is the largest and most respected institute of gemological research and learning worldwide. It is the standard universal method for assessing the quality & purity of any diamond, anywhere around the globe. These 4 attributes are Color, Clarity, Cut, and Carat Weight. Combined, they’re known as the 4 Cs of diamond evaluation. GIA not only created these 4 Cs, but also the International Diamond Grading System. Let’s go through this grading procedure and evaluation scale, one at a time, to ensure a diamond’s purity & intact.
A diamond’s color will help you decide whether you should hold onto it or move on to the next diamond. When it comes to diamonds- the less colored, the higher the grading. The GIA Color Scale classifies diamonds from D-colorless to V-light yellow or brown. The gemologists at the GIA lab compare each diamond to a master set of diamonds to represent the color grade on the GIA scale.
In order to get the GIA clarity, a diamond goes through a grade scale that includes 11 clarity scales. They range from flawless to I3. The flawless kind indicates that there are no blemishes and inclusions visible at ten times magnification. A grade of I3 consists of inclusions that are quite obvious and visible to the naked eyes. To see and plot the inclusions, a ten times magnification loop and a microscope are used. This unique plot helps in identifying a particular stone, as no two diamonds are exactly alike. They further ensure if the diamond was treated to improve its clarity.
The GIA cut scale is used for round stupendous cut diamonds and it consists of five grades ranging from excellent to poor. You might think that the cut is representing the shape of that particular stone, but there is so much more to cut than the basic shape of the gem. How a diamond was cut & polished, directly affects the amount of sparkle and brilliance that comes off the stone. Each diamond is monitored precisely under a tremendously precise measuring device that rotates the diamond 360 degrees. It helps in optically capture hundreds of measurements and facet angles. The GIA gemologists developed a comprehensive system that factors the diamond proportions as well as its culet size, girdle thickness, polish, and symmetry descriptions.
4. CARAT WEIGHT
The fourth and last C stands for Carat Weight. 1 Carat is equivalent to 200 milligrams or one-fifth of a gram in weight. At the GIA lab, each diamond is placed in a sealed chamber environment and weighed on a tremendously precise electronic scale to the fifth decimal place. After using such technologically advanced diamond evaluation, the GIA provides a unique blueprint of a diamond’s attributes and a permanent record of its quality.