The five most contributing factor to the price of the diamond are:
The term “carat” refers to the overall weight of a diamond. Instead of grams or ounces, diamonds are weighed in carats. 1 carat is the equivalent of 200 milligrams. It is easy to get confused and think that carat weight refers to a size, because it is typically associated with a certain size of diamond, however, it ultimately goes into that weight.Carat is one of the major contributing factors to the pricing of the diamond. Higher the carat more the value of the diamond.
Diamonds are graded from D (colourless) to Z (Yellow). D being the best Colour of all which also means D colour diamond will be expensive and lower as you go down. Other than this you also get Fancy colour diamonds. Yellow, Orange, Brown, Pink, Blue etc.
Let me put a clarity chart order wise:
|FL||Flawless||No Flaws, rare and valuable|
|IF||Internally Flawless||No internal flaws but some surface flaws. Still Rare and valuable.|
|VVS1 VVS2||Very Very slightly included||Slight internal Flaws difficult to see with 10x magnification.|
|VS1, VS2||Very slightly included||Slight internal flaws barely visible with 10x magnification.|
|SI1, SI2||Slightly Included||Slight internal flaws visible with 10x magnification and some visible to naked eye.|
|I1, I2, I3, I4||Included||Inclusion visible to naked eye.|
The cut of a diamond refers to how well the diamond’s facets interact with light, the proportions of the diamond, and the overall finish of the diamond.
It is not to be confused with the shape, (like emerald or round,) or facet arrangement, (like brilliant, or step cut), but is instead a reference to the craftsmanship of the diamond and how it factors into the diamond’s brilliance.
A diamond is found in many other shapes except for Rounds.
The round cut diamond is the most popular diamond shape, representing approximately 75% of all diamonds sold. Due to the mechanics of its shape, the round diamond is generally superior to fancy shapes at the proper reflection of light, maximizing potential brightness.
The princess cut diamond , first created in 1980, is the most popular fancy diamond shape, especially for engagement rings. Like round cut diamonds, princess cut diamonds are a good choice for their flexibility in working in almost any style of ring.
Because the oval diamond is a modified brilliant cut (like virtually all round cut diamonds), the two diamond shapes possess a similar fire and brilliance . However, oval cut diamonds have the added advantage of an elongated shape, which can create the illusion of greater size.
The modified brilliant-cut pear-shaped diamond is a combination of a round and a marquise shape, with a tapered point on one end. Ideally, a pear-shaped diamond should possess excellent or very good symmetry. The point should line up with the apex of the rounded end. The shoulders and wings (the upper and lower curves on the right and left side of the diamond) should form uniform, symmetrical curves.
The cushion cut diamond combines a square cut with rounded corners, much like a pillow (hence the name). This classic cut has been around for almost 200 years, and for the first century of its existence was the most popular diamond shape (similar to round cut today). Refinements in cut have led to a recent resurgence in popularity.
The unique look of the emerald cut diamond is due to the step cuts of its pavilion and its large, open table. Instead of the sparkle of a brilliant-cut, emerald cut diamonds produce a hall-of-mirrors effect, with the interplay of light and dark planes. Often, inclusions or body colour are easier to see in an emerald cut diamond.
The modified brilliant-cut heart shaped diamond is a unique and unmistakable symbol of love, popular in solitaire pendants as well as rings. Heart shaped diamonds less than .50 carats may not be a good choice, since the heart shape is more difficult to perceive in smaller diamonds, especially after they are set in prongs.
The marquise cut diamond is a football-shaped, modified brilliant-cut. Because the marquise diamond is long and narrow, it can also create the illusion of greater size. Carat for carat, the marquise diamond has one of the largest surface areas of any diamond shape, making it a good choice when trying to maximize perceived size.
The radiant cut diamond is the first rectangular cut to have a complete brilliant-cut facet pattern applied to both the crown and pavilion, creating a vibrant and lively diamond. The modified square shape is a nice bridge between a cushion and a princess cut, and for that reason looks beautiful set with both rounded or square cornered diamonds.
The asscher cut diamond was first produced in 1902 by the Asscher Brothers of Holland and is a forerunner to the emerald cut. The Asscher cut diamond is similar to the emerald cut, but in a square shape with larger step facets, a higher crown, and a smaller table . This combination often produces more brilliance than the emerald cut.