Carat-per-carat, emerald and Asscher cuts are the least expensive. Because they are step-cut, there is less waste when these diamonds are cut off of the rough stone, which is going to cost the same no matter how it gets cut.
Since a round diamond is thought to hold the most value when compared to the other shapes, it will almost always be given a higher price than any other shape with similar clarity, color, and carat weight.
Round Diamonds Give the Illusion of a Larger Stone
Which diamond shape looks biggest? "In terms of shape, round diamonds look larger for their carat weight than many other cuts," Kwiat says. "The circular cut is not as deep, so much of the weight is reflected in its size appearance."
Emerald cuts are cheaper per carat than most cuts, and are significantly cheaper than round diamonds. This is due to two factors: lower demand for emerald cuts and higher yield on cutting (you lose the least amount of weight when cutting a rough diamond into a polished emerald cut.
How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA
What is the cheapest diamond color?
To group the colors based on prices the relatively affordable colored diamonds are grey, brown and fancy yellow. Going to mid ranging prices it can be an intense and vivid yellow diamonds and orange diamonds. A group higher in prices are pink, purple, violet, green and blue diamonds.
Round brilliant cut diamonds are easily the most expensive diamond shape. In part, that's because round is the most popular diamond shape. More than half of all the diamonds sold today are round diamonds. This incredible popularity means that diamond miners and retailers can charge more for such an in-demand shape.
A VS1 diamond has no visible inclusions and under 10x magnification, the inclusions are almost unidentifiable. These diamonds make up the top 5 percent of all gem-quality stones. VS2 diamonds will only have eye-visible inclusions 5 percent or less of the time, which are more common in stones over 1 carat.
For diamonds over 2 carats, a clarity grade of VS2 or higher is the safest bet for avoiding any signs of visible inclusions. In diamonds between 1 and 2 carats, clarity grades of SI1 or better will not have inclusions easily visible to the naked eye.
The most brilliant, or sparkliest, diamond cut is the round brilliant cut. Round brilliant diamonds are cut to have 58 facets (including the culet), allowing light to enter the diamond and reflect off of every facet to create a beautiful sparkle.
The choice between SI1 and SI2 clarity comes down to the tradeoff between price and quality: All else being equal, SI2 diamonds are cheaper, but SI1 stones are cleaner, on average. However, not all diamonds within a certain grade are created equal.
In reality, most diamonds mined have a yellow or brownish tint. Since people usually don't like to wear diamonds that are noticeably yellow, stones that are visibly tinted are not common in jewelry stores. SALE ALERT: Get up to 40% OFF jewelry and 25% OFF ENGAGEMENT SETTINGS from BLUE NILE!
Diamond clarity is based on the number, size, relief, nature, and position of inclusions. SI2 clarity diamonds have noticeable inclusions that are very easy for a diamond grader to see using 10x magnification. We think if your diamond is bigger than a half-carat in size you'll have no trouble seeing them either.
These diamond shapes are like windows letting you see everything inside. While most diamond shapes are brilliant and sparkly, these cuts have nothing to distract your eye from flaws. That said, some VS2 clarity fancy-cut diamonds will still appear flawless.
Diamonds with a VS2 clarity grade offer you the best balance of beauty and affordability. We think they are the best diamond value. Buying a diamond that has a lower clarity grade but still no eye-visible inclusions will leave more money in your budget to buy a larger, more beautifully cut diamond.
Why is G the most popular color grade for diamond engagement rings? G-color is the top diamond color grade in the near-colorless color range. These are diamonds that professionals can tell have a slight tint of color but that appear colorless to the rest of us.
If you select a setting with a slim band and slim prongs, your center diamond will look larger in comparison. On the other hand, if you choose a wide band with bulky prongs, your diamond will look smaller. So if you want your center stone to look as large as possible, always select a slim, delicate setting.
Being one of the most difficult diamond shapes to cut, the eye-catching Heart shaped diamond is made up of between 56 to 58 facets and is beautiful to see. Nothing says “I love you” like a romantic heart shaped diamond with a brilliant cut.
The color grade is more important than the clarity grade because cushion-cut diamonds tend to retain a lot of color. If you don't want any hints of color, look for a cushion cut diamond with a color grade of H or above.