Blue Diamonds
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.
Black Diamonds
Black Diamonds
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.
Brown Diamonds
Brown Diamonds
Brown coloured 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 standardised 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.
