Diamond Emerald Fashion Wedding Jewellery Necklace.

Diamond Emerald Fashion Wedding Jewellery Necklace.

By Mannan.

There are mathematical guidelines for the angles and length ratios at which the diamond is supposed to be cut in order to reflect the maximum amount of light.

Diamond Wedding Necklace White Gold Bindya.

Diamond Wedding Necklace White Gold Bindya.

By Mannan.

Main article: Diamond cut

Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond is cut. Often diamond cut is confused with "shape".

Bridal Fashion Gold Jewellery Diamond Necklace Sat.

 Bridal Fashion Gold Jewellery Diamond Necklace Sat.

By Mannan.

 Intense yellow coloration is considered one of the fancy colors, and is separate from the color grades of white diamonds. Gemologists have developed rating systems for fancy colored diamonds, but they are not in common use because of the relative rarity of such diamonds.

Bridal Diamond Ruby White Gold Jewellery Necklace Ring.

Bridal Diamond Ruby White Gold Jewellery Necklace Ring.

By Mannan Moti Wala.

In contrast to yellow or brown hues, diamonds of other colors are more rare and valuable. While even a pale pink or blue hue may increase the value of a diamond, more intense coloration is usually considered more desirable and commands the highest prices.

Stylish Fashion Diamond Jewellery Bracelet Necklace Earring.

 Stylish Fashion Diamond Jewellery Bracelet Necklace Earring.

By Stone.

The GIA system uses a benchmark set of natural diamonds of known color grade, along with standardized and carefully controlled lighting conditions. Diamonds with higher color grades are rarer, in higher demand, and therefore more expensive, than lower color grades.

Diamond Ruby White Gold Jewellery Wedding Necklace.

Diamond Ruby White Gold Jewellery Wedding Necklace.

By Stone.

This effect is present in almost all white diamonds; in only the rarest diamonds is the coloration from this effect undetectable. The GIA has developed a rating system for color in white diamonds, from D to Z (with D being "colorless" and Z having a bright yellow coloration), which has been widely adopted in the industry and is universally recognized, superseding several older systems. 

Beautiful Wedding Diamond Necklace Earring Bracelet.

Beautiful Wedding Diamond Necklace Earring Bracelet. 

By Stone.

Most diamonds used as gemstones are basically transparent with little tint, or white diamonds. The most common impurity, nitrogen, replaces a small proportion of carbon atoms in a diamond's structure and causes a yellowish to brownish tint.

Diamond 18k Whit Gold Jewellery Wedding Necklace.

Diamond 18k Whit Gold Jewellery Wedding Necklace.

By Stone.

Color

The Aurora Diamond Collection displays a spectacular array of naturally colored diamonds, which occur in every color of the rainbow.

Diamond Bridal Gold Jewellery Earring Necklace.

Diamond Bridal Gold Jewellery Earring Necklace.

By Stone.

For example, most white diamonds are discounted in price as a more yellow hue is detectable, while intense pink or blue diamonds (such as the Hope Diamond) can be dramatically more valuable. 

Beautiful Design Wedding Jewellery Necklace Set.

Beautiful Design Wedding Jewellery Necklace Set.

By Stone.

The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice. Depending on the hue and intensity of a diamond's coloration, a diamond's color can either detract from or enhance its value

Copper Gold Diamond Wedding Jewellery Necklace.

Copper Gold Diamond Wedding Jewellery Necklace.

By Stone.

A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality most gem-sized natural diamonds are imperfect. 

Diamond 18k Gold Jewellery Kundan Bridal Jhomer Set.

Diamond 18k Gold Jewellery Kundan Bridal Jhomer Set.

By Stone.

Diamonds which show very little traces of color are graded as G or H color diamonds. Slightly colored diamonds are graded as I or J or K color. A diamond can be found in any color in addition to colorless. Some of the colored diamonds, such as pink, are very rare.

Red Diamond Bridal Jewellery Necklace Nath Kare.

Red Diamond Bridal Jewellery Necklace Nath Kare. 

By Stone.

The next grade has a very slight trace of color, which can be observed by any expert diamond valuer/grading laboratory. However, when studded in jewellery these very light colored diamonds do not show any color or it is not possible to make out color shades. These are graded as E color or F color diamonds.

Blake Diamond Blake Gold Jewellery Necklace Ring.

Blake Diamond Blake Gold Jewellery Necklace Ring.

By Stone.

Main article: Diamond color

Jewelers sometimes set diamonds in groups of similar colors.

The Darya-I-Nur Diamond

The finest quality as per color grading is totally colorless, which is graded as D color diamond across the globe, meaning it is absolutely free from any color. 

Diamond Wedding Fashion Jewellery Necklace Set.

Diamond Wedding Fashion Jewellery Necklace Set.

By Stone.

Most inclusions present in gem-quality diamonds do not affect the diamonds' performance or structural integrity. When set in jewelry, it may also be possible to hide certain inclusion behind mounting hardware such as prongs in a way that renders the defect invisible.

Diamond Ruby Bridal Jewellery Necklace Set.

Diamond Ruby Bridal Jewellery Necklace Set.

By Stone.

Of that top 20%, a significant portion contains one or more visible inclusions. Those that do not have a visible inclusion are known as "eye-clean" and are preferred by most buyers, although visible inclusions can sometimes be hidden under the setting in a piece of jewelry.

Whit Gold Diamond Jewellery Wedding Necklace.

Whit Gold Diamond Jewellery Wedding Necklace.

By Stone.

Diamonds become increasingly rare when considering higher clarity gradings. Only about 20% of all diamonds mined have a clarity rating high enough for the diamond to be considered appropriate for use as a gemstone; the other 80% are relegated to industrial use. 

Diamond Bridal Fashion Jewellery Necklace Set.

Diamond Bridal Fashion Jewellery Necklace Set.

By Stone.

The number, size, color, relative location, orientation, and visibility of inclusions can all affect the relative clarity of a diamond. The Gemological Institute of America (GIA) and other organizations have developed systems to grade clarity, which are based on those inclusions which are visible to a trained professional when a diamond is viewed under 10× magnification.

Diamond Fashion Jewellery party Necklace Set.

Diamond Fashion Jewellery party Necklace Set.

By Stone.

In the wholesale trade of gem diamonds, carat is often used in denominating lots of diamonds for sale. For example, a buyer may place an order for 100 carats (20 g) of 0.5-carat (100 mg), D–F, VS2-SI1, excellent cut diamonds, indicating a wish to purchase 200 diamonds (100 carats (20 g) total mass) of those approximate characteristics. Because of this, diamond prices (particularly among wholesalers and other industry professionals) are often quoted per carat, rather than per stone.

Diamond Ruby Kundan Jewellery Bridal Necklace Set.

Diamond Ruby Kundan Jewellery Bridal Necklace Set.

By Stone.

The price per carat does not increase linearly with increasing size. Instead, there are sharp jumps around milestone carat weights, as demand is much higher for diamonds weighing just more than a milestone than for those weighing just less. As an example, a 0.99-carat diamond may have a significantly lower price per carat than a comparable 1.01-carat diamond, because of differences in demand.