Kensington's Diamond Buying Guide

Buying an engagement ring will be a new experience for most people, and we appreciate at first it can appear quite a daunting task...

At Kensington Diamonds however we strive to help our customers understand exactly what they should be looking for, using our expertise to ensure they will end up with a dream diamond, perfectly suited to their requirements.

There are five key attributes to consider before buying a diamond; shape, carat size, cut, color and clarity. Let us show you exactly what they mean...

THE FIVE KEY ATTRIBUTES OF A DIAMOND

  • Shape

    The shape into which a diamond is fashioned.

  • Cut

    The internal proportions, symmetry and polish of a diamond.

  • Carat Weight

    A general indicator of a diamond's overall size.

  • Color

    How much color a diamond possesses. The most in-demand diamonds are colorless.

  • Clarity

    The size and number of tiny natural inclusions or blemishes that a diamond contains within.

Diamond Shape

At Kensington Diamonds we stock six different shapes of the finest quality diamonds. Around 70% of the global market is made up of demand for modern cut round brilliant diamonds, this is by far the most popular shape for engagement rings. We also supply an extensive range of 'fancy' shapes - Princess, Oval, Marquise, Pear and Cushion.

Asscher, Emerald, Heart and Radiant shapes are also available by request. 

SHAPE

Diamonds

Diamond Cut

A diamond’s cut is the single most important of the 4 C’s to evaluate before buying your engagement ring. Of course the carat size, color and clarity will each play their part in the outcome of a well rounded, quality stone. But if the cut grading is not of a high enough standard, your diamond just won’t be bright enough or sparkle like you want it to.

The 'cut' is not the shape of the stone, it actually refers to the diamond’s internal proportions, symmetry and polish.

At Kensington we stock 'Excellent' and 'Very Good' cut graded diamonds. We do not carry 'Good', 'Fair' or 'Poor' gradings as we consider the cut to be a diamond's most important attribute, and strive to only work with the brightest and best diamonds.

'Triple Excellent' (also known as '3EX') diamonds contain excellent gradings in all cut, symmetry and polish categories. They offer the very best light performance available.

Cut

Diamonds
Stocked by Kensington Diamonds.
Not stocked by Kensington Diamonds.

Diamond Carat Weight

One of most commonly asked questions we first receive from customers making inquiries into buying a diamond engagement ring for their partner is - ‘how big should it be?’

Everyone is different so there is no generic answer to this question. Some prioritise size over quality, others quality over size. Speak to us and we will help you find your perfect diamond:

Diamonds

Diamond Color

When people speak of a diamond's coloring, they are for the most part referring to its lack therefore of, as the most expensive and in-demand diamonds are those which are completely clear and have no color whatsoever.

Diamonds vary in color from a completely colorless, icy white looking D grade - down the alphabet to Z, getting progressively more yellow with each grade.

At Kensington Diamonds we only stock colorless (D-F) and near colorless (H-J) diamonds in our inventory. Below this you will be buying a noticeably yellow tinted diamond.

Diamonds
Stocked by Kensington Diamonds.
Not stocked by Kensington Diamonds.

Diamond Clarity

A diamond's 'clarity' grading refers to the number, size and visibility of the tiny natural imperfections and blemishes which it contains as a result of forming under immense pressure beneath the earth's surface.

Many of these imperfections are microscopic and will be invisible to the naked eye; they will not affect the appearance of the diamond in any way unless you are viewing them through a 10x microscopic lens.

Diamonds with the fewest, smallest and least visible imperfections will receive the highest grade, ranging from 'Flawless' down to 'Included 3'.

At Kensington Diamonds we stock 'Flawless' through 'Very Slight Inclusions 2' graded diamonds. We do not carry 'Slightly Included' or 'Included' diamonds in our supply chain, as we strive to only work with diamonds that are completely clean to the eye.

Diamonds
  1. FLAWLESS
  2. INTERNALLY FLAWLESS
  3. VERY VERY SLIGHT INCLUSIONS
  4. VERY SLIGHT INCLUSIONS
  5. SLIGHT INCLUSIONS
  6. INCLUDED DIAMONDS
  • FLAWLESS
  • INTERNALLY FLAWLESS
  • VERY VERY SLIGHT INCLUSIONS
  • VERY SLIGHT INCLUSIONS
  • SLIGHT INCLUSIONS
  • INCLUDED DIAMONDS
Kensington Diamonds does not offer diamonds below "Very Slight" Inclusions Grade

WHAT IS DIAMOND FLUORESCENCE?

This isn't as important as any of the 4 C's outlined above, however the fluorescence of a diamond refers to how much presence there is within its atomic structure of a specific component that will make the diamond emit a blue colored glow when subjected to ultraviolet light.

Diamonds are graded as having five levels of fluorescence - none, faint, medium, strong or very strong. The latter two give off a soft glow under black lighting conditions (the same way your teeth or watch-face may glow especially white under UV).

Whilst rare, occasionally diamonds with strong or very strong levels of fluorescence can appear slightly cloudy or hazy in the D-F colorless range.

For this reason the vast majority of diamonds that we deal with in this color bracket will possess none, faint or (at most) medium fluorescence - as we strive to work exclusively with the brightest diamonds available.

KENSINGTON’S DIAMOND BUYING GUIDE

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