IGI Certified Cushion Lab Grown Diamonds (All)

IGI certified lab grown cushion diamonds supplied in the UK for engagement rings, bespoke jewellery and custom design work. Loose lab grown cushion diamonds graded by IGI, selected for exceptional cut, precision and symmetry.

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D colour cushion cut lab grown diamond loose IGI certified

0.50ct Cushion Lab Grown Diamond

Regular price From £175.00
Sale price From £175.00 Regular price
Unit price
0.50ct Cushion Lab Grown Diamond - IGI Certified IGI certified 0.50ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

0.50ct Elongated Cushion Lab Grown Diamond

Regular price From £175.00
Sale price From £175.00 Regular price
Unit price
0.50ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 0.50ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

0.60ct Cushion Lab Grown Diamond

Regular price From £200.00
Sale price From £200.00 Regular price
Unit price
0.60ct Cushion Lab Grown Diamond - IGI Certified IGI certified 0.60ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

0.60ct Elongated Cushion Lab Grown Diamond

Regular price From £200.00
Sale price From £200.00 Regular price
Unit price
0.60ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 0.60ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

0.70ct Cushion Lab Grown Diamond

Regular price From £210.00
Sale price From £210.00 Regular price
Unit price
0.70ct Cushion Lab Grown Diamond - IGI Certified IGI certified 0.70ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

0.70ct Elongated Cushion Lab Grown Diamond

Regular price From £210.00
Sale price From £210.00 Regular price
Unit price
0.70ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 0.70ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

0.80ct Cushion Lab Grown Diamond

Regular price From £230.00
Sale price From £230.00 Regular price
Unit price
0.80ct Cushion Lab Grown Diamond - IGI Certified IGI certified 0.80ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

0.80ct Elongated Cushion Lab Grown Diamond

Regular price From £230.00
Sale price From £230.00 Regular price
Unit price
0.80ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 0.80ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

0.90ct Cushion Lab Grown Diamond

Regular price From £240.00
Sale price From £240.00 Regular price
Unit price
0.90ct Cushion Lab Grown Diamond - IGI Certified IGI certified 0.90ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

0.90ct Elongated Cushion Lab Grown Diamond

Regular price From £240.00
Sale price From £240.00 Regular price
Unit price
0.90ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 0.90ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.00ct Cushion Lab Grown Diamond

Regular price From £260.00
Sale price From £260.00 Regular price
Unit price
1.00ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.00ct Elongated Cushion Lab Grown Diamond

Regular price From £260.00
Sale price From £260.00 Regular price
Unit price
1.00ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.10ct Cushion Lab Grown Diamond

Regular price From £300.00
Sale price From £300.00 Regular price
Unit price
1.10ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.10ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.10ct Elongated Cushion Lab Grown Diamond

Regular price From £300.00
Sale price From £300.00 Regular price
Unit price
1.10ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.10ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.20ct Cushion Lab Grown Diamond

Regular price From £320.00
Sale price From £320.00 Regular price
Unit price
1.20ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.20ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.20ct Elongated Cushion Lab Grown Diamond

Regular price From £330.00
Sale price From £330.00 Regular price
Unit price
1.20ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.20ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.30ct Cushion Lab Grown Diamond

Regular price From £340.00
Sale price From £340.00 Regular price
Unit price
1.30ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.30ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.30ct Elongated Cushion Lab Grown Diamond

Regular price From £340.00
Sale price From £340.00 Regular price
Unit price
1.30ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.30ct elongated cushion lab...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.40ct Elongated Cushion Lab Grown Diamond

Regular price From £350.00
Sale price From £350.00 Regular price
Unit price
1.40ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.40ct elongated cushion lab...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

1.00ct Blue Cushion Lab Grown Diamond

Regular price £360.00
Sale price £360.00 Regular price
Unit price
1.00ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

1.00ct Blue Elongated Cushion Lab Grown Diamond

Regular price £360.00
Sale price £360.00 Regular price
Unit price
1.00ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy vivid...
D colour cushion cut lab grown diamond loose IGI certified

1.40ct Cushion Lab Grown Diamond

Regular price From £360.00
Sale price From £360.00 Regular price
Unit price
1.40ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.40ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.50ct Elongated Cushion Lab Grown Diamond

Regular price From £370.00
Sale price From £370.00 Regular price
Unit price
1.50ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.50ct Cushion Lab Grown Diamond

Regular price From £380.00
Sale price From £380.00 Regular price
Unit price
1.50ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.60ct Elongated Cushion Lab Grown Diamond

Regular price From £390.00
Sale price From £390.00 Regular price
Unit price
1.60ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.60ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.60ct Cushion Lab Grown Diamond

Regular price From £400.00
Sale price From £400.00 Regular price
Unit price
1.60ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.60ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.70ct Elongated Cushion Lab Grown Diamond

Regular price From £400.00
Sale price From £400.00 Regular price
Unit price
1.70ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.70ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

1.70ct Cushion Lab Grown Diamond

Regular price From £410.00
Sale price From £410.00 Regular price
Unit price
1.70ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.70ct cushion lab grown diamond,...
D colour cushion cut lab grown diamond loose IGI certified

1.80ct Cushion Lab Grown Diamond

Regular price From £430.00
Sale price From £430.00 Regular price
Unit price
1.80ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.80ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.80ct Elongated Cushion Lab Grown Diamond

Regular price From £430.00
Sale price From £430.00 Regular price
Unit price
1.80ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.80ct elongated cushion lab...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

1.00ct Yellow Cushion Lab Grown Diamond

Regular price £450.00
Sale price £450.00 Regular price
Unit price
1.00ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

1.00ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £450.00
Sale price £450.00 Regular price
Unit price
1.00ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy intense...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

1.50ct Blue Cushion Lab Grown Diamond

Regular price £480.00
Sale price £480.00 Regular price
Unit price
1.50ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

1.50ct Blue Elongated Cushion Lab Grown Diamond

Regular price £480.00
Sale price £480.00 Regular price
Unit price
1.50ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy vivid...
D colour cushion cut lab grown diamond loose IGI certified

1.90ct Cushion Lab Grown Diamond

Regular price From £480.00
Sale price From £480.00 Regular price
Unit price
1.90ct Cushion Lab Grown Diamond - IGI Certified IGI certified 1.90ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

1.90ct Elongated Cushion Lab Grown Diamond

Regular price From £480.00
Sale price From £480.00 Regular price
Unit price
1.90ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.90ct elongated cushion lab...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

1.20ct Yellow Cushion Lab Grown Diamond

Regular price £480.00
Sale price £480.00 Regular price
Unit price
1.20ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 1.20ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

1.20ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £480.00
Sale price £480.00 Regular price
Unit price
1.20ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.20ct fancy intense...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

2.00ct Elongated Cushion Lab Grown Diamond

Regular price From £520.00
Sale price From £520.00 Regular price
Unit price
2.00ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

2.00ct Cushion Lab Grown Diamond

Regular price From £530.00
Sale price From £530.00 Regular price
Unit price
2.00ct Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct cushion lab grown diamond,...
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IGI Certified

Lab Grown Diamonds

GIA Certified

Natural Diamonds

Diamond Guide

Cushion Cut Diamond Guide

Explore what makes Cushion cuts so distinctive — from their soft, romantic shape to their brilliant sparkle and timeless appeal. Discover how they compare to other diamond shapes, what to look for in cut quality, and how to choose the best lab grown Cushion diamond for your budget.

Cushion Cut Guide