Diamonds Explained, All else being identical, a heavier valuable stone is an all the more expensive gem.
We use a carat measuring scale to gauge the weight of diamond gems, the weight can also be assessed by the stone’s length x width x height.
Diamonds are weighed using the traditional carat system. Of course, weight is only one element of valuation. Clarity, color and cut are also crucial.
How does the laboratory grade diamonds ?
Diamonds are graded from colorless to a yellowish-brown hue. The process involves comparing a diamond with a master colour diamond set of stones, then assigning it a grade according to a set scale. The internationally recognized GIA grading system uses letter symbols from D to Z for color denomination.
What is Diamond Clarity ?
The degree of absence or the presence of and the visual appearance of internal characteristics called inclusions, and surface defects called blemishes.
Gauged by using the clarity grading scale.
Internally flawless (loupe clean, it therefore has no inclusions and only blemishes are visible to a skilled grader using 10x magnification)
Very-very slightly included (inclusions are difficult for a skilled grader to see under 10x magnification)
Very slightly included (inclusions are clearly visible under 10x magnification, but can be characterized as minor)
Slightly included (inclusions are noticeable to a skilled grader using 10x magnification)
Included (inclusions are noticeable with less than 10x magnification, and may affect transparency and brilliance)
What are the different shapes or Cuts
This is achieved by cutting a rough stone so that it becomes a faceted gem of regular shape and proportions. The most traditional shape is round brilliant.
A diamond’s shape and proportions, together with the quality of its cut and polishing, have the greatest influence on its fire, sparkle and value.