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Since the price per carat of large natural black diamonds remains more / less the same around $3,000 per carat, the difference between white and black diamonds increases exponentially as the size of the diamond grows. The result is that while a 3 carat white diamond costs around $35,000, a 10 carat black diamond costs less at $30,000.


Black Diamonds. Black Diamonds From Gemone Diamonds. It’s providing a huge collection of 100% Natural Black Diamond. Black color stone is modern-day trends in the diamond and fashion world. The trend for black stone is growing faster worldwide and the momentum just picked up in recent years.


Just like other diamonds, the 4Cs (cut, clarity, color and carat) should all be considered if you’re purchasing a black diamond engagement ring, loose black diamond or other jewelry. All of these factors play a major role in determining the quality and desirability of a black diamond.


There is a reason why a 3 carat diamond will worth much more than three 1 carat diamonds. Carat weight does not affect value or size proportionately. A Round Brilliant Cut Diamond weight 1 carat has a diameter of 6.5mm, whereas a 3 carat Diamond is 9.3mm with Round Brilliant Cut.


The cost of a 3 carat diamond ring depends on a number of factors including Cut quality, Clarity, Color and Shape. For instance, this 3 Carat K/VS1 Excellent Round Cut diamond costs $21,260, while this 3 Carat K/VS2 Excellent Round Cut diamond is worth $19,880.


An E, F or G color, VS2 clarity and 3.00 carat round diamond should cost approx $65,000 – $90,000. An H or I color, VS2 clarity and 3.00 carat round diamond should cost approx $45,000 – $55,000. A J color, VS2 clarity and 3.00 carat round diamond should cost approx $35,000. Obviously, there are many other factors that can cause the price to ...


Naturally black diamonds are extremely rare and can have a very high value, depending on the cut, color, clarity and carat size of the diamond. The most accurate way to learn the value of a black diamond is to have it appraised by a jewelry appraiser or a jeweler. Though natural black diamonds are rare, many black diamonds exist in the marketplace.


The clarity of a black diamond is not as important because these diamonds do not refract light as well as white diamonds. The surface of a black diamond should be sparkling and glossy. Black diamonds are denser than white diamonds so a 1 carat diamond will look smaller than a 1 carat white diamond.


How Much is a 3 Carat Diamond? A 3-carat diamond can cost anywhere from $20k to $200k+. For the best value, we recommend a 3-carat diamond with color H and clarity VS2, which will cost around $35,000 - $50,000, depending on the shape. To learn more and to avoid common costly mistakes, read our detailed guide on shopping for a 3-carat diamond.


The charts below show current retail diamond prices statistics for marquise diamonds from the inventories of 15 vendors listed on Pricescope. Each link represents an average per carat price for different color and clarity combinations. Please be aware that cut quality can make a difference in price.