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Diamond Colour Grades

Diamond colour is graded on a scale from D (colourless) to Z (light yellow or brown). The less colour a diamond has, the higher its grade and value. Explore our comprehensive guide to understand how subtle differences in colour can affect a diamond's appearance and worth.

D
D
Absolutely colourless
E
E
Colourless
F
F
Colourless
G
G
Near colourless
H
H
Near colourless
I
I
Near colourless
J
J
Near colourless
K
K
Faint colour
L
L
Faint colour
M
M
Faint colour
N
N
Very light colour
O
O
Very light colour
P
P
Very light colour
Q-R
Q-R
Very light colour
S-T
S-T
Light colour
W-X
W-X
Light colour
Y-Z
Y-Z
Light colour

Diamond Clarity Grades

Understanding diamond clarity helps you make an informed choice. Explore the different grades below to see how clarity affects a diamond's appearance and value.
Flawless(FL)
Flawless(FL) icon

Flawless(FL)

A flawless diamond has no visible imperfections or inclusions under 10x magnification. These diamonds are extremely rare and highly valued for their purity and brilliance

Internally Flawless(IF)
Internally Flawless(IF) icon

Internally Flawless(IF)

These diamonds have no internal inclusions but may have tiny surface blemishes. To the naked eye, they look just as perfect as flawless but are slightly more common.

Very Very Slightly Included (VVS1, VVS2)
Very Very Slightly Included (VVS1, VVS2) icon

Very Very Slightly Included (VVS1, VVS2)

These diamonds have minuscule inclusions that are extremely difficult to see, even under magnification. They are nearly flawless and offer exceptional clarity.

Very Slightly Included (VS1, VS2)
Very Slightly Included (VS1, VS2) icon

Very Slightly Included (VS1, VS2)

These diamonds have small inclusions that are only visible under magnification and remain nearly invisible to naked eye. They offer a great ballance between quality and value.

Slightly Included (SI1, SI2)
Slightly Included (SI1, SI2) icon

Slightly Included (SI1, SI2)

These diamonds contain inclusions that are more noticeable under magnification and may be visible to the naked eye. However, they still maintain good brilliance and can be a great option for budget-conscious buyers.

Included (I1, I2, I3)
Included (I1, I2, I3) icon

Included (I1, I2, I3)

These diamond have noticable inclusions that may affect transparency and brilliance. While they are most affordable, the inclusions can impact durability and sparkle.

Diamond Clarity Grades

Understanding diamond clarity helps you make an informed choice. Explore the different grades below to see how clarity affects a diamond's appearance and value.
Ideal (ID)
Ideal (ID) icon

Ideal (ID)

Similar to excellent, ideal-cut diamonds are precisely cut to reflect almost all light, maximizing brightness and fire. Typically found in premium cuts like round brilliant.

Excellent (EX)
Excellent (EX) icon

Excellent (EX)

Diamond with excellent cut reflect nearly all light that enters them, resulting in maximum brilliance and sparkle. This is one of the highhest grades.

Very Good (VG)
Very Good (VG) icon

Very Good (VG)

These diamond reflect most of the light that enters them, offering great brilliance and fire, but slightly less than excellent or ideal cuts. Still a fantastic choice with a lower price point.

Good (G)
Good (G) icon

Good (G)

A good-cut reflects a fair amount of light but lacks the superior brilliance of higher grades. It can still appear beautiful, but some light leakage reduces overall sparkle.

Fair (F)
Fair (F) icon

Fair (F)

These diamonds allow more light to escape through the sides and bottom rather than reflecting back. As a result, they have noticeably less brilliance and sparkle.

Poor (P)
Poor (P) icon

Poor (P)

Diamonds in this category lose most of their light, appearing dull or lifeless. They are not recommended if brilliance and beauty are a priority.

Lifetime Warranty

Covered by our Lifetime Manufacturing Warranty

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Free Resizing

One free resizing within 12 months

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Book a Consultation

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Meticulously Handcrafted for Perfection

Every engagement ring at Diamond Lab is crafted with unwavering attention to detail, ensuring exceptional quality and timeless elegance. From the initial sketch to the final polish, our expert artisans meticulously handcraft each piece, combining cutting-edge technology with traditional craftsmanship. Every setting is designed to enhance the brilliance of your chosen gemstone, while our rigorous quality control guarantees a flawless finish. Experience the artistry and precision that go into creating a ring as unique as your love story.

Diamond Lab – Where elegance meets modern innovation.

The Diamond Lab Difference

Ethical luxury, crafted in Australia.

Quality Craftsmanship

Bench-made by expert jewellers in Australia, checked at every stage.

Premium Materials

IGI lab diamonds and D/VVS1 moissanite in 14k, 18k or platinum.

Custom Design

One-to-one consultation from sketch to final polish.

Responsible Luxury

Ethically sourced stones, local production, lower transport impact.

Lifetime Care

Lifetime manufacturing warranty and one free resize within 12 months.

We create engagement rings and fine jewellery that balance durability, beauty and ethics. From our Perth showroom we support clients across Australia with meticulous finishing and insured delivery.

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