Guide to buying

Navigate your purchase with ease using our step-by-step buying guide. From understanding product features to choosing the right fit, we make every decision simple and informed.

RARE BY NATURE, BRILLIANT BY CHOICE

THE DIAMOND QUEST

We all wish to enhance our appeal!

Natural Coloured Natural Diamonds at C. Krishniah Chetty will take your breath away. Take a look at the rare diamonds and gemstones collection.

We all wish to enhance our appeal!

What Are Natural Coloured Diamonds?

Each DiamondAir™ diamond promises between a minimum of 57 and a maximum of 150 precise facets, in round and fancy shapes in natural coloured & white diamonds. While the 57 facet round diamond is the perfect brilliant-cut 2 billion-year old slice of carbon, the 150 facet is the newest,most perfect option in round diamonds for a mature, collector of the fine things of life. The 150 facet DiamondAir™ round diamond is a hero of the finest minds in the world of

Cut

The only key component controlled by man to bring out the life or face-up appearance of the diamond. Every diamond facet acts like a tiny mirror that refracts and reflects light to create a face-up appearance. To contribute to these interactions, the proportions, polish and precisions of facet placement are crucial, also known as the finish of the diamond, as every angle and polished facet affects the amount of light returned or lost.

These cut grades are assessed based on the cut quality on one of these five grades: Excellent (Ex), Very Good (VG), Good (G), Fair (F), and Poor (P). Better the cut grade, the more valuable the diamond.

Clarity

Diamonds are formed naturally in extreme strained conditions. Rarely does nature produce perfect crystals of extraordinary quality. The degree to which these clarity characteristics are visible under ten times magnifications affects its clarity value, considering their size, number, nature, position and contrast or visibility.

The diamond clarity is assessed based on 11 categories.

Flawless: That shows no inclusions or blemishes.

Internally Flawless: A diamond that shows only insignificant blemishes.

Very Very Slightly Included (VVS1 and VVS2): Diamonds with minute inclusions that are extremely difficult to very difficult for a skilled grader to see under 10X magnification.

Very Slightly Included (VS1 and VS2): VS diamonds contain minor inclusions that range from difficult to somewhat easy for a trained grader to view under 10X magnification.

Slightly Included (SI1 and SI2): Diamonds under the SI category contain noticeable inclusions that are easy or very easy for a grader to view under 10X.

Included (I1, I2 and I3): Inclusions are apparent and usually quite visible to the unaided eye.The fewer imperfections, the more desirable and the more valuable the diamond is. Inclusions in diamonds block or interfere with the passage of light, therefore, affecting their brilliance.

Colour

Apart from being colourless, diamonds are also available in a spectrum of colours.

These diamonds are assigned a colour grade starting from alphabet D to Z, with D representing colourless and continuing downward to Z, which displays light yellow.Each colour grade will have an impact on price. The levels in colour grades are:

Colourless (D-E-F)
Near Colourless (G-H-I-J)
Faint Yellow (K-L-M)
Very Light Yellow (N to R)
Light (S-Z)

Diamonds that display colour outside the normal colour range are termed Fancy-coloured and are graded separately as: Fancy Light, Fancy, Fancy Intense, Fancy Dark, Fancy Deep, Fancy Vivid.

Carat

Is a metric unit of measurement for diamonds and other gemstones. One metric carat (ct) corresponds to 200 milligrams, or 1 gram equals 5 carats. Carats are further subdivided into 100 points. Therefore, a diamond can be referred to or written as 25 pointers, ¼ carat, 0.25 carat - all the same weight.

C.Krishniah Chetty Group of Jewellers offers nature’s finest diamonds from colourless to near colourless and clarity Flawless to Slightly Included and ensures accurate representation and guarantee from the smallest to large important solitaires.

Your Quick Guide to Buying Fine Jewellery

Everything you need to know — from picking the perfect piece to understanding what truly makes it valuable, all in just a few minutes.

FANCY COLOURED DIAMONDS BUYING GUIDE

Think Beyond White. Discover the Power of Colour

We all wish to enhance our appeal!

Natural Coloured Natural Diamonds at C. Krishniah Chetty will take your breath away. Take a look at the rare diamonds and gemstones collection.

The rarest of rare diamonds, for the rarest of rare taste in fine living.

Here is a short primer of this segment of how we grade these marvels of nature:

Colour

Diamonds that exhibit any colour face-up beyond the normal colour range of D-Z on a diamond colour scale are called Fancy colour diamonds. The colour classification for fancy colour diamonds is on three different axes. 

1) Hue: The first primary impression of the colour of the diamond-like red, blue, green, yellow, and brown.

2) Tone: The intensity of darkness or lightness of the colour.

3) Saturation is the uniformity of the colour within the diamond.

C. Krishniah Chetty Laboratory Grading System for Fancy coloured diamonds:

The colour scale system: Faint, Fancy Light, Fancy, Fancy Intense and Fancy Vivid.

How does a diamond get its colour?

The colours of fancy-coloured diamonds come from the absence or presence of certain elements present within the diamond crystal. The yellow colour of a diamond is due to the presence of nitrogen molecules. The blue colour is caused likely due to the presence of boron.  In nature, when diamonds are formed or deposited closer to natural radiation sources, a colourless diamond can turn green. These fabulous rare diamonds come in almost every shade of the colour spectrum. In order of rarity (most rare to less rare): red, blue, green, pink, purple, yellow and brown. Every colour is nevertheless candy to the eyes!

Cut

Don’t bother too much about the cut in this segment. It’s purely colour, colour and colour!

Clarity

Don’t bother too much about the clarity of the stone in this segment. It’s important, but it is again purely colour, colour and colour!

Carat

Certain carat weights in coloured diamonds exhibit better colour in bigger sizes and are worth collecting as they show well when set in jewellery, specially as centre stones.

Expression of colour

C. Krishniah Chetty we describe colour based on well recognised terminology in the diamond fraternity – when a colour is not one shade (which is mostly the case) as a combination of two or more colours are visible in a fancy colour diamond, such colours are described as an adjective for the first colour and a noun for its second colour (i.e., Greenish Yellow, purplish pink, yellowish brown, brownish yellow and so on). The first colour represents the modifying colour, and the second is the primary colour. Diamonds with pure colours without any modifiers are rare and expensive.

Value

 Every fancy colour diamond is unique, while their quality and price depend significantly on the colour. Diamonds that exhibit stronger pure or singular colours are more valuable than those with a faint or secondary colour. When buying colour diamonds, it is more on your personal taste, your own appeal, your favourite shape in a diamond (although availability is always low), visible inclusions inside (to a lesser degree), and the design of the jewel that makes a powerful impact on your friends, when they see you wearing the rarest of rare !

MARGUERITE DAISY - Fancy Yellow Diamond

Yellow hues always creates a feeling of warmth and coziness, with a splash of sunshine that is gentle invigorating and cool just like the diamond infusing high level of activity, laughter and fun.

CAMELIA - Fancy Intense Pink Diamond

Pink the powerful representation of energetic power of the feminine principle and unconditional love, rarely expressed just like a handful of pink diamond from millions of carats from a whole years worth of supply.

ROSA TROPICANA - Fancy Vivid Yellow Diamond

The natural, down-to-earth hue associated with warmth, comfort and security, abundantly found as diamonds exceptionally gorgeous and exude a sense of sophisticated allure.

MADONNA LILY - Fancy Green Diamond

A blossom sculpted in coloured diamonds, where vivid hues bloom with luminous grace. A rare floral symphony of light, elegance, and timeless luxury.

Wish to more know more?

C. Krishniah Chetty began selling natural coloured by nature, natural diamonds recorded first in Circa 1945

Since then our expertise has been sought by the leading who’s who of India and around the world. Oh No! We don’t sell a million of them, not even hundreds of them… remember nature produces only a handful a year.

The Argyle mine in Australia was the primary producer of coloured diamonds in modern times. The mine was closed in 2020-21 for commercial production. The various other mines producing diamonds or other minerals do bring us a small selection now and then, quite sporadically. C. Krishniah Chetty does offer a selection of fine stones and crafts them into stunning jewellery.