Product - Prism Group

"Prism Group has successfully developed an innovative clean process to change 100% natural diamonds to fancy color – making them even more stunning than they already were, we have the largest inventories of color Enhanced diamonds in a variety of colors, sizes and shapes at different price points, We offer our customers a wide spectrum of colors such as: Pink, Yellow, Green, Cognac, and Black. By that we allow you to enter an infinite world of jewelry designs -full of endless possibilities. Natural fancy diamonds are very expensive and out of reach therefore color enhanced diamonds can be a great alternative for natural fancy color diamonds, Our collection of natural diamonds that have been carefully hand selected, heated, and polished to bring out each diamond's beautiful color. "

White Diamond

Prism Group has a vast range of certified and non-certified Diamond. we have specialized production units, in Surat for manufacture of small and medium size category of diamonds, which are widely used in jewellery and watches. we offers non certified diamonds in clarities ranging from IF to Pique and sizes 0.002 carats size to 10 carats with superior makes. 90% of the goods offered are white round brilliant diamonds and 5% to 7% are of fancy shapes.

Many diamonds are not certified for a variety of reasons. Certification costs, and some merchants don’t want to incur additional expenses. Sometimes, jewelers think it’s not worth it to have low-quality diamonds certified because for such stones, a certificate would not make a big difference to the buyer.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Brown Diamonds

Brown colored natural diamonds have their own aesthetic appeal and grown numbers of consumers are attracted by the appeal of something unusual which retains the diamond mystique. We believe we have significantly contributed to driving consumer demand in this range of diamonds across the world by reliably creating standardized assortments which have given jewellery manufacturers the confidence to be creative and ambitious in their development of appealing collections. We played a major role in dispelling the previously held perception that brown diamonds were inferior and encouraging the feeling that they are complementary and a valuable extension to jewellery manufacturer’s collection and the diamond dream. Prism Group offer C1 to C7 range in brown diamonds, when grading these diamonds, the trade uses the C1 to C7 grading scale. This scale separates the tone or depth of color progressively. On one end of the scale, C1 denotes the Champagne color and on the other end, C7 describes the Cognac color.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Black Diamond

Black diamonds have the same chemical structure as white ones and are therefore real diamonds. Inspite their relative cheapness, black diamond’s remain incredibly popular. Almost any diamond can be turned in to black by using of the heated process. Black diamonds are the easiest colored diamonds to buy as they do not come in different shades. The main clarity characteristics of Black Diamonds are broken girdles or open cavities on the surface. It is the presence or absence of these surface inclusions that help you determine the price.

We also carry Pears, Marquises, Ovals, Radiants, Cushions & Emerald. We carry different qualities graded based on the presence or absence of surface inclusions.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Cognac Diamond

Cognac color enhanced diamonds are visibly similar to their natural counterpart making it very popular. Also, they go particularly well with rose gold, white gold and yellow gold. Our cognac diamonds come in two shades; Orangish Cognac and Reddish Cognac. Reddish Cognac is basically a more intense reddish shade of Orangish Cognac. Red & Orange diamonds can come with undertones of brown and black. None of these undertones are particularly desirable; our aim is to create a diamond of the purest color possible. A lot of diamonds become blackish when we are making the reddish cognac and this low yield makes the Reddish Cognacs more expensive than the Orangish Cognacs.

We carry Reddish Cognac and Orangish Cognac Diamonds in Rounds, varying from 0.002 ct to 10.00 cts. They are priced at different quality levels depending on clarity and brightness of color.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Yellow Diamonds

Prism Group offers a wide selection of Fancy Yellow, Canary Yellow, Golden Yellow and Lemon Yellow Diamonds. Yellow diamonds can come with undertones of green, brown or orange. None of these are particularly desirable; our aim is to create a diamond of the purest yellow possible. In order to do this, we use both the irradiation and HPHT processes. Because the HPHT process is quite difficult to carry out, our HPHT yellow diamonds are on the more expensive side of our price range. Also, black inclusions can easily be seen in a yellow diamond thereby these inclusions should be avoided.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Pink Diamonds

Purples and pinks are some of our most asked- for colors but they are the most difficult to achieve. When we color enhance a thousand carats of the blues, greens, yellows and oranges we only achieve perhaps 2-3 carats of pinks and purples. Very few diamonds have the latent ability to turn pink or purple when irradiated or enhanced using HPHT, and even then most of them come in the more purplish shades which are less desirable and worth less than pinks.

Pinks & Purples come in a range of shades having undertones of red, orange & brown. These undertones are not desirable and are at best avoided. The scarce availability of Rose Pinks makes them more expensive than the Purples.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Green Diamond

The green diamond family includes an infinite palette of nuances and consists of bright colors such as mint and lime, but also more subtle hues such as khaki and olive. Pure green diamonds are extremely rare and highly valued, ranging from light mint greens to vivid grass greens. Green diamonds are usually found with undertones of yellow or blue and too much of these undertones are not desirable. We manufacture all of our green diamonds to come with the perfect balance of greenish and yellowish undertones. Too much yellow undertones will create a yellow stone, but the perfect balance heightens the brightness of a green stone.

We carry green diamonds in Olive Green, Ice Green, Lemon Green and Apple Green shades and are available in Rounds, Princes’ cuts and various special shapes. Our green diamonds are priced at different quality levels, and are graded on the basis of color and clarity.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)

Blue Diamonds

All of our blue diamonds are irradiated using the completely safe low-energy electron acceleration process. Because the Ice Blues are created using the clearest diamonds they are the most expensive. Darker blues are made using darker shades of brown diamond making them a more affordable alternative. When it comes to choosing a blue diamond, you should beware of any greenish shades. Any underlying greenish tones reduce the value of a blue diamond. Feathers can be seen quite clearly in any blue diamond, so the higher the clarity the better. Our blue diamonds are priced at different quality levels, and are graded on the basis of color and clarity.

FULL CUT SIZE: 0.002 CTS (0.7 MM) TO 10.00 CTS (14MM)
SINGLE CUT SIZE: 0.002 CTS (0.7 MM) TO 0.01 CTS (1.3MM)