IGI Certified Diamonds

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As a globally recognised diamond grading institution, IGI is dedicated to providing an accurate, trustworthy and unbiased evaluation of your diamonds. It screens the diamonds using strict international grading systems based on a range of factors, including but not limited to the 4 C’s: Carat, Colour, Clarity and Cut.

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Exceptional
1 carat e VS2 EX Cut IGI radiant diamond
1 carat radiant diamond thumb image

1 carat radiant diamond

e | VS2 | EX | IGI

£365 £521

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.16 carat d VS1 EX Cut IGI pear diamond
1.16 carat pear diamond thumb image

1.16 carat pear diamond

d | VS1 | EX | IGI

£367 £524

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.11 carat d VVS2 EX Cut IGI pear diamond
1.11 carat pear diamond thumb image

1.11 carat pear diamond

d | VVS2 | EX | IGI

£375 £536

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.13 carat e VS1 EX Cut IGI oval diamond
1.13 carat oval diamond thumb image

1.13 carat oval diamond

e | VS1 | EX | IGI

£391 £559

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat d VVS1 EX Cut IGI pear diamond
1.15 carat pear diamond thumb image

1.15 carat pear diamond

d | VVS1 | EX | IGI

£393 £561

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FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.2 carat d VVS2 ID Cut IGI round diamond
1.2 carat round diamond thumb image

1.2 carat round diamond

d | VVS2 | ID | IGI

£398 £569

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.36 carat e VVS2 EX Cut IGI pear diamond
1.36 carat pear diamond thumb image

1.36 carat pear diamond

e | VVS2 | EX | IGI

£408 £583

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat e VVS2 EX Cut IGI marquise diamond
1.15 carat marquise diamond thumb image

1.15 carat marquise diamond

e | VVS2 | EX | IGI

£409 £584

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.13 carat d VVS2 EX Cut IGI oval diamond
1.13 carat oval diamond thumb image

1.13 carat oval diamond

d | VVS2 | EX | IGI

£410 £586

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.3 carat e VVS1 EX Cut IGI pear diamond
1.3 carat pear diamond thumb image

1.3 carat pear diamond

e | VVS1 | EX | IGI

£411 £587

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FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.16 carat d VS1 EX Cut IGI oval diamond
1.16 carat oval diamond thumb image

1.16 carat oval diamond

d | VS1 | EX | IGI

£411 £587

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.16 carat e VS1 EX Cut IGI princess diamond
1.16 carat princess diamond thumb image

1.16 carat princess diamond

e | VS1 | EX | IGI

£411 £587

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat e VVS2 EX Cut IGI oval diamond
1.15 carat oval diamond thumb image

1.15 carat oval diamond

e | VVS2 | EX | IGI

£412 £589

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat d VS1 EX Cut IGI radiant diamond
1.15 carat radiant diamond thumb image

1.15 carat radiant diamond

d | VS1 | EX | IGI

£412 £589

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.4 carat e VS1 EX Cut IGI pear diamond
1.4 carat pear diamond thumb image

1.4 carat pear diamond

e | VS1 | EX | IGI

£414 £591

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.21 carat d VVS2 EX Cut IGI radiant diamond
1.21 carat radiant diamond thumb image

1.21 carat radiant diamond

d | VVS2 | EX | IGI

£421 £601

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.18 carat f VVS2 EX Cut IGI radiant diamond
1.18 carat radiant diamond thumb image

1.18 carat radiant diamond

f | VVS2 | EX | IGI

£425 £607

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.39 carat e VS1 EX Cut IGI cushion diamond
1.39 carat cushion diamond thumb image

1.39 carat cushion diamond

e | VS1 | EX | IGI

£428 £611

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.18 carat f VS1 EX Cut IGI round diamond
1.18 carat round diamond thumb image

1.18 carat round diamond

f | VS1 | EX | IGI

£431 £616

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.41 carat f VVS2 EX Cut IGI pear diamond
1.41 carat pear diamond thumb image

1.41 carat pear diamond

f | VVS2 | EX | IGI

£434 £620

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.42 carat f VVS1 EX Cut IGI pear diamond
1.42 carat pear diamond thumb image

1.42 carat pear diamond

f | VVS1 | EX | IGI

£437 £624

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.04 carat e IF EX Cut IGI radiant diamond
1.04 carat radiant diamond thumb image

1.04 carat radiant diamond

e | IF | EX | IGI

£437 £624

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FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.11 carat e VS1 EX Cut IGI emerald diamond
1.11 carat emerald diamond thumb image

1.11 carat emerald diamond

e | VS1 | EX | IGI

£438 £626

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.17 carat d VS2 EX Cut IGI emerald diamond
1.17 carat emerald diamond thumb image

1.17 carat emerald diamond

d | VS2 | EX | IGI

£439 £627

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FLAT 30% OFF

Diamond Score 92/100
Premium
1.01 carat f VS2 EX Cut IGI asscher diamond
1.01 carat asscher diamond thumb image

1.01 carat asscher diamond

f | VS2 | EX | IGI

£439 £627

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FLAT 30% OFF

Diamond Score 88/100
Exceptional
1.34 carat d VVS1 EX Cut IGI pear diamond
1.34 carat pear diamond thumb image

1.34 carat pear diamond

d | VVS1 | EX | IGI

£440 £629

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FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.19 carat d VS2 EX Cut IGI radiant diamond
1.19 carat radiant diamond thumb image

1.19 carat radiant diamond

d | VS2 | EX | IGI

£440 £629

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.18 carat d VS2 EX Cut IGI round diamond
1.18 carat round diamond thumb image

1.18 carat round diamond

d | VS2 | EX | IGI

£443 £633

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.1 carat f VVS2 EX Cut IGI pear diamond
1.1 carat pear diamond thumb image

1.1 carat pear diamond

f | VVS2 | EX | IGI

£443 £633

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FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.31 carat d VS1 EX Cut IGI oval diamond
1.31 carat oval diamond thumb image

1.31 carat oval diamond

d | VS1 | EX | IGI

£445 £636

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.19 carat e VS1 EX Cut IGI cushion diamond
1.19 carat cushion diamond thumb image

1.19 carat cushion diamond

e | VS1 | EX | IGI

£446 £637

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.19 carat d VS2 EX Cut IGI oval diamond
1.19 carat oval diamond thumb image

1.19 carat oval diamond

d | VS2 | EX | IGI

£446 £637

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.33 carat f VVS2 EX Cut IGI radiant diamond
1.33 carat radiant diamond thumb image

1.33 carat radiant diamond

f | VVS2 | EX | IGI

£447 £639

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.49 carat d VS1 EX Cut IGI pear diamond
1.49 carat pear diamond thumb image

1.49 carat pear diamond

d | VS1 | EX | IGI

£453 £647

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.04 carat f VVS1 EX Cut IGI asscher diamond
1.04 carat asscher diamond thumb image

1.04 carat asscher diamond

f | VVS1 | EX | IGI

£458 £654

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.41 carat e VS2 EX Cut IGI emerald diamond
1.41 carat emerald diamond thumb image

1.41 carat emerald diamond

e | VS2 | EX | IGI

£458 £654

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.36 carat e VVS2 EX Cut IGI radiant diamond
1.36 carat radiant diamond thumb image

1.36 carat radiant diamond

e | VVS2 | EX | IGI

£462 £660

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.43 carat e VS1 ID Cut IGI round diamond
1.43 carat round diamond thumb image

1.43 carat round diamond

e | VS1 | ID | IGI

£463 £661

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat d VVS2 EX Cut IGI radiant diamond
1.15 carat radiant diamond thumb image

1.15 carat radiant diamond

d | VVS2 | EX | IGI

£468 £669

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.36 carat e VVS2 EX Cut IGI oval diamond
1.36 carat oval diamond thumb image

1.36 carat oval diamond

e | VVS2 | EX | IGI

£468 £669

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.42 carat f VS1 EX Cut IGI emerald diamond
1.42 carat emerald diamond thumb image

1.42 carat emerald diamond

f | VS1 | EX | IGI

£469 £670

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.43 carat d VVS2 EX Cut IGI cushion diamond
1.43 carat cushion diamond thumb image

1.43 carat cushion diamond

d | VVS2 | EX | IGI

£469 £670

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.19 carat e VS2 EX Cut IGI oval diamond
1.19 carat oval diamond thumb image

1.19 carat oval diamond

e | VS2 | EX | IGI

£470 £671

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.04 carat f VVS1 EX Cut IGI radiant diamond
1.04 carat radiant diamond thumb image

1.04 carat radiant diamond

f | VVS1 | EX | IGI

£472 £674

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FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.14 carat d VVS1 EX Cut IGI emerald diamond
1.14 carat emerald diamond thumb image

1.14 carat emerald diamond

d | VVS1 | EX | IGI

£472 £674

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FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.08 carat e VVS1 EX Cut IGI asscher diamond
1.08 carat asscher diamond thumb image

1.08 carat asscher diamond

e | VVS1 | EX | IGI

£473 £676

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FLAT 30% OFF

Diamond Score 100/100
Premium
1.2 carat f VS2 EX Cut IGI round diamond
1.2 carat round diamond thumb image

1.2 carat round diamond

f | VS2 | EX | IGI

£474 £677

Add to Compare

FLAT 30% OFF

Diamond Score 88/100
Exceptional
1.17 carat d VVS2 EX Cut IGI emerald diamond
1.17 carat emerald diamond thumb image

1.17 carat emerald diamond

d | VVS2 | EX | IGI

£474 £677

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.12 carat f VVS2 EX Cut IGI oval diamond
1.12 carat oval diamond thumb image

1.12 carat oval diamond

f | VVS2 | EX | IGI

£475 £679

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.01 carat f VVS1 EX Cut IGI cushion diamond
1.01 carat cushion diamond thumb image

1.01 carat cushion diamond

f | VVS1 | EX | IGI

£475 £679

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1 carat f IF EX Cut IGI pear diamond
1 carat pear diamond thumb image

1 carat pear diamond

f | IF | EX | IGI

£475 £679

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.15 carat d VS2 EX Cut IGI princess diamond
1.15 carat princess diamond thumb image

1.15 carat princess diamond

d | VS2 | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.01 carat f IF EX Cut IGI emerald diamond
1.01 carat emerald diamond thumb image

1.01 carat emerald diamond

f | IF | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.01 carat e IF EX Cut IGI asscher diamond
1.01 carat asscher diamond thumb image

1.01 carat asscher diamond

e | IF | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.15 carat e VVS2 EX Cut IGI emerald diamond
1.15 carat emerald diamond thumb image

1.15 carat emerald diamond

e | VVS2 | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.19 carat e VVS2 EX Cut IGI radiant diamond
1.19 carat radiant diamond thumb image

1.19 carat radiant diamond

e | VVS2 | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.03 carat e VVS2 EX Cut IGI asscher diamond
1.03 carat asscher diamond thumb image

1.03 carat asscher diamond

e | VVS2 | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 96/100
Exceptional
1.19 carat f VS1 EX Cut IGI radiant diamond
1.19 carat radiant diamond thumb image

1.19 carat radiant diamond

f | VS1 | EX | IGI

£476 £680

Add to Compare

FLAT 30% OFF

Diamond Score 92/100
Exceptional
1.34 carat e VVS1 EX Cut IGI marquise diamond
1.34 carat marquise diamond thumb image

1.34 carat marquise diamond

e | VVS1 | EX | IGI

£477 £681

Add to Compare

FLAT 30% OFF

Diamond Score 100/100
Exceptional
1.14 carat e VS1 EX Cut IGI asscher diamond
1.14 carat asscher diamond thumb image

1.14 carat asscher diamond

e | VS1 | EX | IGI

£478 £683

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FLAT 30% OFF

Diamond Score 96/100

IGI Diamonds

You’re looking for that perfect diamond for your jewellery, but do you know what's the most important thing you need to keep in mind? You should know is whether your lab diamond has the right certification or not. Diamonds are one of the most precious purchases you will ever make, so it becomes vital that you look out for the most authentic certification available. If you’re looking for the best lab diamonds online that have the proper authentication then you’ve come to the right place.

Did you know, the International Gemological Institute, also known as IGI, was established in Belgium and is one of the most well-known labs in the world? If you’re looking for lab diamonds that are exactly what they are claiming to be, then this certification will help put your mind at ease. This lab grades some of the best diamonds in the world and is widely known in many parts of the world as a big authority.

IGI certified lab diamonds go through intense checks that make sure these diamonds are worth your hard earned money. Established in 1975, IGI has become one of the largest gemological labs in the world. Our IGI certified lab diamonds are going to your next best friends! Once you’ve selected the best lab diamond for you, the world becomes your oyster. You can set this diamond in a beautiful eengagement ring setting, solitaire necklace, tennis bracelet or a pair of stud earrings. If you want to take home the sparkle of your dreams, all you need to do is simply browse through our website and find your forever bling!

IGI grades lab diamonds on a scale ranging from D-Z and the less colour a diamond has the more worth it has. Our IGI certified diamonds will leave you enthralled in every sense of the word, be it as a companion to your engagement ring, hoop earring or stud earrings. When a diamond is graded as D by IGI, it is known as a colourless diamond and it is also considered as the most precious diamond. You’d feel at ease knowing that the lab also grades diamonds based on its symmetry and proportion on a scale ranging from ideal to poor, which will help you in making a better choice. IGI also grades the clarity of a lab diamond on a scale of flawless to I3, by checking the visible inclusions and blemishes present on the diamond.

A lab diamond is one of the most sustainable alternatives to natural diamonds and if you’re trying to reduce your carbon footprints all the while looking your best, then you’ve come to the right place. A lab diamond is visually, chemically and physically similar in composition to natural diamonds which makes them one of the best investments you can make. Browse through our stunning range of loose lab diamonds and find the one you’ll cherish forever.
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IGI Certified Diamonds FAQs

What is an IGI-certified diamond?

Can I trust the grading of an IGI-certified diamond?

What is the price range for IGI Certified Diamonds?

What is the significance of IGI-certification?

Can I buy an IGI-certified diamond online?