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A Guide to Diamond Features

The Diamond Features Guide The 4 C’s The diamond features guide explores every element of a diamond and how they affects their value, either positively or negatively. The classical variables of diamond valuation are known as the 4 C’s: Cut, Clarity, Color, Carat (weight/size). There are many more factors, which you will be able to discover […]

The Diamond Features Guide

The 4 C’s

The diamond features guide explores every element of a diamond and how they affects their value, either positively or negatively. The classical variables of diamond valuation are known as the 4 C’s: Cut, Clarity, Color, Carat (weight/size). There are many more factors, which you will be able to discover more about here. WP Diamonds provides a precise value through an expert valuation for your rings, jewelry, or loose diamonds. Often, the condition of a used diamond is a key component in its valuation. Although the hardest natural material known to man, second hand diamonds may be chipped, abraded, or broken. The GIA have made a series of videos regarding grading which you can see here. Brilliance has a great diamond education section for you to learn more. You can also see the GIA education guide on their website

Retail Values vs. Wholesale Values

The reality is the price you paid for your piece and its resale value now are going to be quite different. A good analogy is driving a new car off the lot; your purchase no longer carries the same value. With diamonds, it can be even less…However, if you bought your diamond jewelry many years ago, you might have more than recouped the difference. Diamond prices can rise significantly during boom years, so if you timed the purchase right, your assets could have appreciated in value.

Here, we list the major factors we take into consideration when valuing your diamonds and the type of offer we give you when you sell diamonds to WP.

Size

Larger is better and the “magic sizes” play a large role. Magic sizes include 0.50 cts,
1.00 cts, 2.00 cts, 5.00 cts.

Once you pass a magic size, the price per carat increases. For example, a 1.00 ct stone is worth approximately 15-20% more per carat than a 0.90 ct stone. The same goes for a 5.00 ct versus a 4.90 ct.

Shape

Rounds are more valuable; cushions, princess cuts, radiants and asschers are also very popular, but worth much less than rounds.

Emerald cuts, ovals and pears are worth even less and marquises are worth less still. This predicated upon fashion trends and the size and shape of a diamond that can be cut from a piece of rough diamond.

Color

D is the most valuable on the D-Z scale.

Fancy colors are even more valuable than D color with reds, blues, and green being the most valuable.

Clarity

The more clarity characteristics (inclusions) a diamond has, the lower the clarity grade and lower the value.

Does the diamond look clear to the naked eye or not?

Fluorescence

Fluorescence is a negative for diamonds with D-H color (as much as -15% for a D color IF diamond)

Fluorescence can actually be moderately positive for the value of diamonds with I or lower color.

Cut

Excellent cut is optimal and worth approximately 15% more than a Very Good (VG) cut, which is worth approximately 15% more than a Good (G) cut.

Only rounds are given cut grades by GIA.
A triple EX grade (i.e. EX cut, EX polish and EX symmetry) is generally worth 7-10% more than a triple VG grade.

Polish

Polish has a smaller effect on value than the cut grade, especially between, say, a VG grade and a G grade, for example.

A triple EX grade (i.e. EX cut, EX polish and EX symmetry) is generally worth 7-10% more than a triple VG grade.

Symmetry

Symmetry has a smaller effect on value than the cut grade, especially between, say, a VG grade and a G grade, for example. A triple EX grade (i.e. EX cut, EX polish and EX symmetry) is generally worth 7-10% more than a triple VG grade

Diamond or Fake

You can have more confidence in the authenticity of your stone with if it has a GIA, EGL USA or IGI grading report or certificate.

Grading

How (& by whom) is the diamond graded can effect the value and sale price of the diamonds markedly. Expert valuations can offer you better prices for selling diamonds

Read More of Our Diamond Guides

Our Offices

USA

535 5th Avenue, 11th Floor,
New York,
New York 10017

UK

212 JQ Modern
120 Vyse Street, Hockley
Birmingham, B18 6NF

Hong Kong

6 Duddell Street,
Suite 604
Central, Hong Kong

Japan

N&E BLD., 5th Floor
1-12-4 Ginza, Chuo-ku
Tokyo 104-0061

535 5th Avenue, 11th Floor,
New York,
New York 10017

212 JQ Modern
120 Vyse Street, Hockley
Birmingham, B18 6NF

6 Duddell Street,
Suite 604
Central, Hong Kong

N&E BLD., 5th Floor
1-12-4 Ginza, Chuo-ku
Tokyo 104-0061