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Loose Diamonds

Quality Loose Diamonds

If you are looking for quality loose diamonds, is the internet site for you.Purchasing quality loose diamonds requires personal attention and detailed information, both of which you will find at

Always Look For The 5 C’s With Quality Loose Diamonds

When you are looking for quality loose diamonds, you should always look for the 5 C’s grading system. The 5 C’s are cut, color, clarity and carat, and cost of a high grade in each of these is what you should expect when purchasing quality loose diamonds. Cut, which refers to the shape of quality loose diamonds (such as round brilliant), is the most important factor, and has its own special brand.See also 5c Diamonds

Expect Only Quality Loose Diamonds

You should expect only quality loose diamonds when you are shopping. has insured that you will only have quality loose diamonds to choose from on our website by selling only certified diamonds. Certification for our quality loose diamonds is preformed by GIA, the two most respected names in independent certifying organizations. Means Quality Loose Diamonds is one of the most respected names in On-line shopping of diamonds & diamond jewelry, because we sell good quality loose diamonds. When you want expert advice and information on quality loose diamonds, you can email us at or call us at +91-11-32510842. We wants to make sure that you not only find the best price on quality loose diamonds and you will receive instant assistance you need.

emerald round marquise oval
radiant pear heart




Physical Properties of Loose Diamonds


Refractive Index

The refractive index is the ratio of the speed of light in a vacuum to that in a material. It is the most important physical property, affecting brilliance, as brilliance results from the way light is refracted when traveling through the diamond and then reflected back to the eye. Diamond has a RI of 2.42.


As light travels through the stone, the white light is spread separating into spectral colors (rainbow colors). The splitting effect is called dispersion or "fire". For diamonds it is 0.044.


Measures the surface reflection, and, as a result, the shine of a diamond. Diamonds luster is 17.2%.


Diamond is the hardest of all known natural substances, with 100 years in the making of its formation. Diamond, although highest on the scale of hardness (rated 10 on the Mohs scale), is not as tough as some gems because of its good cleavage. Cleavage is the tendency of a diamond to split in certain directions where the carbon atoms are furthest apart. That is why diamonds toughness is characterized as good, not excellent. Specialists advise to keep jewels with gems or loose diamonds apart to avoid scratching and not to wear any stone-jewelry when doing hard housework.

Unmounted Diamonds - Lower Prices

By buying a loose diamond, you can pay much lower prices than buying it ready made into a ring.We can also supply a ring mount of your own choice and design, or you can have your diamond mounted by you own favourite jeweler.

Why Isnt Every Diamond Certified?

Diamond grading laboratories charge fees for their work, so its only worth paying for larger or better diamonds to be certificated. The extra cost needs to be weighed against the fact that the diamond should be easier to sell. Also many customers prefer to see a complete ring rather than a selection of loose diamonds. There is however a far more practical reason why most jewellers are reluctant to get involved in promoting graded diamonds, they need to protect their profits margins, and certificated diamonds would make it easier to shop around.

Matching Diamonds - Buying Two or More Diamonds

If you need to buy a number of matching stones, any quantity from two upwards, it is not quite as simple as shopping round for a single diamond.It now becomes quite important to ensure that the dimensions of the stones match, and that they match in other respects such as colour, clarity and cut. Two diamonds which have the same grade on paper may not match each other in real life. In this case it may be best to revert to buying your ring complete, perhaps having it made for you by special order to your own requirements. There is then nothing to stop you having the stones graded before they are set, to ensure that you are getting what you pay for. This approach would be worth using if the piece of jewelry you wanted was of particularly high quality or used particularly large diamonds. Obviously we can help you with this project as we are experienced at dealing in diamonds both loose and ready mounted into rings.

Coloured Diamonds

Please check out our selection of fancy coloured diamonds, both natural and enhanced on our Coloured Diamond pages.

Weight Shape (Cut) Colour Clarity Cert Avail Price $
0.19 Round Brilliant G VS1 IGI Yes $279
0.46 Round Brilliant G SI2 GAGTL Yes $796
0.51 Round Brilliant E SI1 IGI Yes $1,956
0.54 Princess H VS2 GAGTL Yes $1,230
0.60 Round Brilliant G VS2 IGI Yes $2,030
0.73 Emerald Cut K SI1 GAGTL Yes $1,443
0.82 Baguette H VS2 GAGTL Yes $2,540
0.96 Emerald Cut J VS2 GAGTL Yes $2.939
1.00 Emerald Cut G IF IGI Yes $8,724
1.00 Round Brilliant E VVS1 IGI Yes $10,531
1.01 Round Brilliant F SI1 IGI Yes $7,633
1.06 Brilliant Cut H VS1 GIA Yes $8,968
1.13 Round Brilliant G SI1 GAGTL Sold $5,930
1.14 Round Brilliant I SI1 GAGTL Yes $5,650
1.14 Round Brilliant H VVS1 EGL Yes $7,450
1.56 Emerald Cut G SI1 GAGTL Yes $13,104
1.70 Round Brilliant G VS1 EGL Yes $11,850
2.00 Round Brilliant I P1 GAGTL Yes $5,911
10.10 Round Brilliant D IF GIA Ask $1,271,700


Key to Table

Weight = Weight in carats.
Shape = Shape and cut.
Colour = Colour, usually on GIA scale.
Clarity = Clarity, usually on GIA scale.
Cert = Laboratory issuing the certificate.
Avail = Available
Price $= Total price in $


This characteristic of a diamond causes a slight blue glow when the stone is exposed to intense, direct ultraviolet light. This type of light can typically be found in nightclubs. A small amount of ultraviolet light comes directly from the Sun. There are differing opinions on fluorescence and whether to avoid it or not. We believe it comes down to a matter of personal taste and does not affect the value of the diamond.


Diamond clarity is a quality of diamonds relating to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat, color, and cut.

A clarity grade is assigned based on the overall appearance of the stone under 10x magnification.

Diamonds with higher clarity grades are more valued, with the exceedingly rare "flawless" graded diamond fetching the highest price. Minor inclusions or blemishes are useful, as they can be used as unique identifying marks analogous to fingerprints. In addition, as synthetic diamond technology improves and distinguishing between natural and synthetic diamonds becomes more difficult, inclusions or blemishes can be used as proof of natural origin.

Clarity is one of the characteristics that are applied when discussing the quality of a diamond. While Fl (flawless) is the best on the grading scale, they are extremely rare.

Similar to a naturally grown diamond, a lab grown crystal may have inclusions, because an absolutely pure diamond without any defects is mostly a theoretical concept rather than natural phenomena. Cultivated diamonds grown in the Labs of New Age Diamonds are graded (on average) between I, SI and VS scale.

I - Included: contain some inclusions that can be seen by the naked eye but they are so small and tiny that it can be easily hidden in finished jewellery. The cost of such stones is traditionally much lower, which still makes them very appealing

SI - Slightly included: contain some small inclusions that are slightly more noticeable under 10x magnification but still cant affect brilliance and transparency of the stone.

VS - Very Slightly Included. Inclusions or flaws are hardly seen fewer than 10x magnification loop.


A carat is a unit of weight for diamonds and other gems. The metric carat of .200 grams, or 200 milligrams was adopted in the United States in 1913 and now standardized in the principle countries of the world.

If other factors are equal, the more a stone weighs, the more valuable it will be. Gemological laboratories measure carat weight when the diamond is loose (unmounted). While it is possible to estimate the weight of a mounted diamond, the lab uses ultra sensitive scales to achieve an exact weight, measured 3 decimal places, although the third decimal place is not usually mentioned at the retail level.
Here are several ways to express 1 carat:

  • 1 ct.
  • 200 milligrams
  • 1/5 gram
  • 100 points
  • 4 grainer (not often used in retail environment)



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