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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4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

2.20ct Elongated Cushion Lab Grown Diamond

Regular price From £550.00
Sale price From £550.00 Regular price
Unit price
2.20ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.20ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

2.20ct Cushion Lab Grown Diamond

Regular price From £570.00
Sale price From £570.00 Regular price
Unit price
2.20ct Cushion Lab Grown Diamond - IGI Certified IGI certified 2.20ct cushion lab grown diamond,...
4.00ct Pink Cushion Lab Grown Diamond - The Carat Club

1.00ct Pink Cushion Lab Grown Diamond

Regular price £600.00
Sale price £600.00 Regular price
Unit price
1.00ct Pink Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy intense pink...
4.00ct Pink Elongated Cushion Lab Grown Diamond - The Carat Club

1.00ct Pink Elongated Cushion Lab Grown Diamond

Regular price £600.00
Sale price £600.00 Regular price
Unit price
1.00ct Pink Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy intense...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

1.50ct Yellow Cushion Lab Grown Diamond

Regular price £600.00
Sale price £600.00 Regular price
Unit price
1.50ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

1.50ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £600.00
Sale price £600.00 Regular price
Unit price
1.50ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy intense...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

2.50ct Elongated Cushion Lab Grown Diamond

Regular price From £640.00
Sale price From £640.00 Regular price
Unit price
2.50ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

2.50ct Cushion Lab Grown Diamond

Regular price From £650.00
Sale price From £650.00 Regular price
Unit price
2.50ct Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct cushion lab grown diamond,...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

2.00ct Blue Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
2.00ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

2.00ct Blue Elongated Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
2.00ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy vivid...
4.00ct Pink Cushion Lab Grown Diamond - The Carat Club

1.50ct Pink Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
1.50ct Pink Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy intense pink...
4.00ct Pink Elongated Cushion Lab Grown Diamond - The Carat Club

1.50ct Pink Elongated Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
1.50ct Pink Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy intense...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

1.70ct Yellow Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
1.70ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 1.70ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

1.70ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £720.00
Sale price £720.00 Regular price
Unit price
1.70ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 1.70ct fancy intense...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

3.00ct Elongated Cushion Lab Grown Diamond

Regular price From £760.00
Sale price From £760.00 Regular price
Unit price
3.00ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct elongated cushion lab...
D colour cushion cut lab grown diamond loose IGI certified

3.00ct Cushion Lab Grown Diamond

Regular price From £770.00
Sale price From £770.00 Regular price
Unit price
3.00ct Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct cushion lab grown diamond,...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

2.50ct Blue Cushion Lab Grown Diamond

Regular price £840.00
Sale price £840.00 Regular price
Unit price
2.50ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

2.50ct Blue Elongated Cushion Lab Grown Diamond

Regular price £840.00
Sale price £840.00 Regular price
Unit price
2.50ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy vivid...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

2.00ct Yellow Cushion Lab Grown Diamond

Regular price £880.00
Sale price £880.00 Regular price
Unit price
2.00ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

2.00ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £880.00
Sale price £880.00 Regular price
Unit price
2.00ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy intense...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

3.00ct Blue Cushion Lab Grown Diamond

Regular price £960.00
Sale price £960.00 Regular price
Unit price
3.00ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

3.00ct Blue Elongated Cushion Lab Grown Diamond

Regular price £960.00
Sale price £960.00 Regular price
Unit price
3.00ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy vivid...
D colour cushion cut lab grown diamond loose IGI certified

3.50ct Cushion Lab Grown Diamond

Regular price From £960.00
Sale price From £960.00 Regular price
Unit price
3.50ct Cushion Lab Grown Diamond - IGI Certified IGI certified 3.50ct cushion lab grown diamond,...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

3.50ct Elongated Cushion Lab Grown Diamond

Regular price From £960.00
Sale price From £960.00 Regular price
Unit price
3.50ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 3.50ct elongated cushion lab...
4.00ct Pink Cushion Lab Grown Diamond - The Carat Club

2.00ct Pink Cushion Lab Grown Diamond

Regular price £960.00
Sale price £960.00 Regular price
Unit price
2.00ct Pink Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy intense pink...
4.00ct Pink Elongated Cushion Lab Grown Diamond - The Carat Club

2.00ct Pink Elongated Cushion Lab Grown Diamond

Regular price £960.00
Sale price £960.00 Regular price
Unit price
2.00ct Pink Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy intense...
4.00ct Pink Cushion Lab Grown Diamond - The Carat Club

2.50ct Pink Cushion Lab Grown Diamond

Regular price £1,080.00
Sale price £1,080.00 Regular price
Unit price
2.50ct Pink Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy intense pink...
4.00ct Pink Elongated Cushion Lab Grown Diamond - The Carat Club

2.50ct Pink Elongated Cushion Lab Grown Diamond

Regular price £1,080.00
Sale price £1,080.00 Regular price
Unit price
2.50ct Pink Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy intense...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

2.50ct Yellow Cushion Lab Grown Diamond

Regular price £1,080.00
Sale price £1,080.00 Regular price
Unit price
2.50ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

2.50ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £1,080.00
Sale price £1,080.00 Regular price
Unit price
2.50ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy intense...
4.00ct Elongated Cushion Lab Grown Diamond - The Carat Club

4.00ct Elongated Cushion Lab Grown Diamond

Regular price From £1,200.00
Sale price From £1,200.00 Regular price
Unit price
4.00ct Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct elongated cushion lab...
4.00ct Pink Cushion Lab Grown Diamond - The Carat Club

3.00ct Pink Cushion Lab Grown Diamond

Regular price £1,200.00
Sale price £1,200.00 Regular price
Unit price
3.00ct Pink Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy intense pink...
4.00ct Pink Elongated Cushion Lab Grown Diamond - The Carat Club

3.00ct Pink Elongated Cushion Lab Grown Diamond

Regular price £1,200.00
Sale price £1,200.00 Regular price
Unit price
3.00ct Pink Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy intense...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

3.00ct Yellow Cushion Lab Grown Diamond

Regular price £1,200.00
Sale price £1,200.00 Regular price
Unit price
3.00ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

3.00ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £1,200.00
Sale price £1,200.00 Regular price
Unit price
3.00ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 3.00ct fancy intense...
4.00ct Blue Cushion Lab Grown Diamond - The Carat Club

4.00ct Blue Cushion Lab Grown Diamond

Regular price £1,680.00
Sale price £1,680.00 Regular price
Unit price
4.00ct Blue Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy vivid blue...
4.00ct Blue Elongated Cushion Lab Grown Diamond - The Carat Club

4.00ct Blue Elongated Cushion Lab Grown Diamond

Regular price £1,680.00
Sale price £1,680.00 Regular price
Unit price
4.00ct Blue Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy vivid...
4.00ct Yellow Cushion Lab Grown Diamond - The Carat Club

4.00ct Yellow Cushion Lab Grown Diamond

Regular price £1,920.00
Sale price £1,920.00 Regular price
Unit price
4.00ct Yellow Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy intense yellow...
4.00ct Yellow Elongated Cushion Lab Grown Diamond - The Carat Club

4.00ct Yellow Elongated Cushion Lab Grown Diamond

Regular price £1,920.00
Sale price £1,920.00 Regular price
Unit price
4.00ct Yellow Elongated Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy intense...
D colour cushion cut lab grown diamond loose IGI certified

4.00ct Cushion Lab Grown Diamond

Regular price From £2,070.00
Sale price From £2,070.00 Regular price
Unit price
4.00ct Cushion Lab Grown Diamond - IGI Certified IGI certified 4.00ct 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