IGI Certified Radiant Lab Grown Diamonds

IGI certified Radiant lab grown diamonds in a range of carat weights, selected for cut, symmetry and quality. Explore loose Radiant diamonds for engagement rings, bespoke jewellery and custom designs.

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D colour radiant cut lab grown diamond loose IGI certified

0.30ct Radiant Lab Grown Diamond

Regular price From £150.00
Sale price From £150.00 Regular price
Unit price
0.30ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.30ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.40ct Radiant Lab Grown Diamond

Regular price From £160.00
Sale price From £160.00 Regular price
Unit price
0.40ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.40ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.50ct Radiant Lab Grown Diamond

Regular price From £170.00
Sale price From £170.00 Regular price
Unit price
0.50ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.50ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.60ct Radiant Lab Grown Diamond

Regular price From £180.00
Sale price From £180.00 Regular price
Unit price
0.60ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.60ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.70ct Radiant Lab Grown Diamond

Regular price From £190.00
Sale price From £190.00 Regular price
Unit price
0.70ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.70ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.80ct Radiant Lab Grown Diamond

Regular price From £210.00
Sale price From £210.00 Regular price
Unit price
0.80ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.80ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

0.90ct Radiant Lab Grown Diamond

Regular price From £220.00
Sale price From £220.00 Regular price
Unit price
0.90ct Radiant Lab Grown Diamond - IGI Certified IGI certified 0.90ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.00ct Radiant Lab Grown Diamond

Regular price From £250.00
Sale price From £250.00 Regular price
Unit price
1.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.00ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.10ct Radiant Lab Grown Diamond

Regular price From £260.00
Sale price From £260.00 Regular price
Unit price
1.10ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.10ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.20ct Radiant Lab Grown Diamond

Regular price From £270.00
Sale price From £270.00 Regular price
Unit price
1.20ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.20ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.30ct Radiant Lab Grown Diamond

Regular price From £280.00
Sale price From £280.00 Regular price
Unit price
1.30ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.30ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.40ct Radiant Lab Grown Diamond

Regular price From £290.00
Sale price From £290.00 Regular price
Unit price
1.40ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.40ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.50ct Radiant Lab Grown Diamond

Regular price From £330.00
Sale price From £330.00 Regular price
Unit price
1.50ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.50ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.60ct Radiant Lab Grown Diamond

Regular price From £350.00
Sale price From £350.00 Regular price
Unit price
1.60ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.60ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.70ct Radiant Lab Grown Diamond

Regular price From £360.00
Sale price From £360.00 Regular price
Unit price
1.70ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.70ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.80ct Radiant Lab Grown Diamond

Regular price From £390.00
Sale price From £390.00 Regular price
Unit price
1.80ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.80ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

1.90ct Radiant Lab Grown Diamond

Regular price From £410.00
Sale price From £410.00 Regular price
Unit price
1.90ct Radiant Lab Grown Diamond - IGI Certified IGI certified 1.90ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

2.00ct Radiant Lab Grown Diamond

Regular price From £500.00
Sale price From £500.00 Regular price
Unit price
2.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 2.00ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

2.50ct Radiant Lab Grown Diamond

Regular price From £650.00
Sale price From £650.00 Regular price
Unit price
2.50ct Radiant Lab Grown Diamond - IGI Certified IGI certified 2.50ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

3.00ct Radiant Lab Grown Diamond

Regular price From £800.00
Sale price From £800.00 Regular price
Unit price
3.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 3.00ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

3.50ct Radiant Lab Grown Diamond

Regular price From £950.00
Sale price From £950.00 Regular price
Unit price
3.50ct Radiant Lab Grown Diamond - IGI Certified IGI certified 3.50ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

4.00ct Radiant Lab Grown Diamond

Regular price From £1,100.00
Sale price From £1,100.00 Regular price
Unit price
4.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 4.00ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

4.50ct Radiant Lab Grown Diamond

Regular price From £1,300.00
Sale price From £1,300.00 Regular price
Unit price
4.50ct Radiant Lab Grown Diamond - IGI Certified IGI certified 4.50ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

5.00ct Radiant Lab Grown Diamond

Regular price From £1,800.00
Sale price From £1,800.00 Regular price
Unit price
5.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 5.00ct radiant lab grown diamond,...
D colour radiant cut lab grown diamond loose IGI certified

6.00ct Radiant Lab Grown Diamond

Regular price From £2,700.00
Sale price From £2,700.00 Regular price
Unit price
6.00ct Radiant Lab Grown Diamond - IGI Certified IGI certified 6.00ct radiant lab grown diamond,...
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IGI Certified

Lab Grown Diamonds

GIA Certified

Natural Diamonds
Radiant cut lab grown diamond loose stone

Diamond Guide

Radiant Cut Diamond Guide

Explore what makes Radiant cut diamonds so distinctive — from their bold rectangular shape and exceptional brilliance to their modern design and intense sparkle. Discover how they compare to other diamond shapes, what to look for in cut quality and proportions, and how to choose the best lab grown Radiant cut diamond for your budget.

Radiant Cut Guide