By contrast, although white (not clear, but diamonds with a milky-white tone) and black diamonds are quite rare, they have not managed to capture the favour and attention of the public and are considered to be the least valuable of all coloured diamonds.
D color diamond is the highest grade and is extremely rare—the highest color grade that money can buy.
The most expensive diamond in the world is the Kohinoor. The unique 105.6-carat colorless diamond is said to be priceless.
Red diamonds are the rarest and some of the most expensive in the world. Also known as Fancy Reds, they come in a variety of shades ranging from orange-red to brownish red. Majority of the world's red diamonds come from the Argyle Diamond Mine in Australia.
1. ROUND BRILLIANT DIAMOND. By far the most popular cut is the Round Brilliant, with it's fifty-seven perfectly aligned facets it's brilliance really does out-shine the others. Total internal reflection is the key here; light travels through the stone giving optimum sparkle and scintillation.
Radiant are square or rectangular brilliant-cut diamonds with cut corners. They are often the most affordable diamond shapes.
1.00 Carat
Because it's the most popular weight, diamonds experience a price jump at 1.00 ct. The price jump is especially high for round diamonds, and, at this weight, you'll get the most savings by choosing a fancy shape. With a budget of $4,500, you can find a great one-carat diamond.
1. Round- Still takes the top spot. According to GIA, more than 60% of couples choose a round diamond for their center stone. The round cut has been around since the 1800's making it by far the most popular year after year.
Tiffany only accepts engagement diamonds in the “colorless” and “near colorless” range on a diamond color scale. In other words, for engagement rings, Tiffany only accepts D color diamonds, E color diamonds, F color diamonds, G color diamonds, H color diamonds and I color diamonds.
Because diamonds reflect white light, colorless diamonds produce the best sparkle and fire. In fact, the more color a diamond has, the less likely it is to reflect white light. And as a result, will produce less sparkle. A D-color diamond is the highest quality, and will offer the greatest sparkle.
Differences Between G and H Color Diamond
G color diamonds are very slightly more colorless than H color diamonds. G color diamonds are on an average $400 to $650 more expensive than H color diamonds.
A diamond with a poor clarity grade has multiple inclusions, which directly affects sparkle. Because inclusions hinder the refraction and return of light, the lower the clarity grade, the cloudier the diamond will appear.
The purest of pure diamonds should technically transmit visible light and appear as a clear colorless crystal. Not every diamond is white; colors in diamond originate from lattice (repeating atomic pattern) defects and impurities.
Which diamond cut has the least sparkle? Baguette is the worst diamond shape in terms of brilliance. This shape makes a diamond sparkle less, even if it has an ideal cut.
There are many gems that are more valuable than diamonds. Emeralds, sapphires, rubies, garnets, and alexandrite, just to name a few.
Dubai is deemed as one of the cheapest places to buy diamonds and rightly so. There's a reason that it is regarded as one of the world's top three diamond trading centers—the other two being India and Belgium.
Russia. Russia is said to have the world's largest and richest diamond reserves. By volume, they are the greatest producer and exporter of rough diamonds in the world.
The average total carat weight for an engagement ring in the U.S. hovers just over 1 carat, at 1.08 carats. The range of 1.0 to 1.9 carats is by far the most popular, but there are noticeable peaks at the 0.70 – 0.79 range, the 0.90 – 0.99 range and the 1.50 – 1.59 range.
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.
Diamond color is important: Most diamonds used in engagement rings are near-colorless with hints of yellow or brown. All things being equal, the more colorless a diamond is, the rarer it is, and this rarity will be reflected in its price.
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.
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.