IGI Certified Lab Grown Diamonds

Explore our premium collection of ethically sourced and sustainably grown IGI certified lab grown diamonds. These diamonds deliver exceptional clarity, brilliance and fire, making them ideal for custom jewellery making, engagement rings or accent pieces.

Filters

Shape

Colour

D colour marquise cut lab grown diamond loose IGI certified

0.30ct Marquise Lab Grown Diamond

Regular price From £140.00
Sale price From £140.00 Regular price
Unit price
0.30ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.30ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.40ct Marquise Lab Grown Diamond

Regular price From £190.00
Sale price From £190.00 Regular price
Unit price
0.40ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.40ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.50ct Marquise Lab Grown Diamond

Regular price From £200.00
Sale price From £200.00 Regular price
Unit price
0.50ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.50ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.60ct Marquise Lab Grown Diamond

Regular price From £220.00
Sale price From £220.00 Regular price
Unit price
0.60ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.60ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.70ct Marquise Lab Grown Diamond

Regular price From £230.00
Sale price From £230.00 Regular price
Unit price
0.70ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.70ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.80ct Marquise Lab Grown Diamond

Regular price From £250.00
Sale price From £250.00 Regular price
Unit price
0.80ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.80ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

0.90ct Marquise Lab Grown Diamond

Regular price From £260.00
Sale price From £260.00 Regular price
Unit price
0.90ct Marquise Lab Grown Diamond - IGI Certified IGI certified 0.90ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.00ct Marquise Lab Grown Diamond

Regular price From £270.00
Sale price From £270.00 Regular price
Unit price
1.00ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.00ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.10ct Marquise Lab Grown Diamond

Regular price From £280.00
Sale price From £280.00 Regular price
Unit price
1.10ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.10ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.20ct Marquise Lab Grown Diamond

Regular price From £360.00
Sale price From £360.00 Regular price
Unit price
1.20ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.20ct marquise lab grown diamond,...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

1.00ct Blue Marquise Lab Grown Diamond

Regular price £380.00
Sale price £380.00 Regular price
Unit price
1.00ct Blue Marquise Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy vivid blue...
D colour marquise cut lab grown diamond loose IGI certified

1.30ct Marquise Lab Grown Diamond

Regular price From £400.00
Sale price From £400.00 Regular price
Unit price
1.30ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.30ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.40ct Marquise Lab Grown Diamond

Regular price From £500.00
Sale price From £500.00 Regular price
Unit price
1.40ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.40ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.50ct Marquise Lab Grown Diamond

Regular price From £550.00
Sale price From £550.00 Regular price
Unit price
1.50ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.50ct marquise lab grown diamond,...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

1.50ct Blue Marquise Lab Grown Diamond

Regular price £620.00
Sale price £620.00 Regular price
Unit price
1.50ct Blue Marquise Lab Grown Diamond - IGI Certified IGI certified 1.50ct fancy vivid blue...
4.00ct Pink Marquise Lab Grown Diamond - The Carat Club

1.00ct Pink Marquise Lab Grown Diamond

Regular price £620.00
Sale price £620.00 Regular price
Unit price
1.00ct Pink Marquise Lab Grown Diamond - IGI Certified IGI certified 1.00ct fancy intense pink...
D colour marquise cut lab grown diamond loose IGI certified

1.60ct Marquise Lab Grown Diamond

Regular price From £700.00
Sale price From £700.00 Regular price
Unit price
1.60ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.60ct marquise lab grown diamond,...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

2.00ct Blue Marquise Lab Grown Diamond

Regular price £700.00
Sale price £700.00 Regular price
Unit price
2.00ct Blue Marquise Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy vivid blue...
D colour marquise cut lab grown diamond loose IGI certified

1.70ct Marquise Lab Grown Diamond

Regular price From £800.00
Sale price From £800.00 Regular price
Unit price
1.70ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.70ct marquise lab grown diamond,...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

2.50ct Blue Marquise Lab Grown Diamond

Regular price £840.00
Sale price £840.00 Regular price
Unit price
2.50ct Blue Marquise Lab Grown Diamond - IGI Certified IGI certified 2.50ct fancy vivid blue...
D colour marquise cut lab grown diamond loose IGI certified

1.80ct Marquise Lab Grown Diamond

Regular price From £850.00
Sale price From £850.00 Regular price
Unit price
1.80ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.80ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

1.90ct Marquise Lab Grown Diamond

Regular price From £900.00
Sale price From £900.00 Regular price
Unit price
1.90ct Marquise Lab Grown Diamond - IGI Certified IGI certified 1.90ct marquise lab grown diamond,...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

3.00ct Blue Marquise Lab Grown Diamond

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

2.00ct Pink Marquise Lab Grown Diamond

Regular price £1,000.00
Sale price £1,000.00 Regular price
Unit price
2.00ct Pink Marquise Lab Grown Diamond - IGI Certified IGI certified 2.00ct fancy intense pink...
D colour marquise cut lab grown diamond loose IGI certified

2.00ct Marquise Lab Grown Diamond

Regular price From £1,100.00
Sale price From £1,100.00 Regular price
Unit price
2.00ct Marquise Lab Grown Diamond - IGI Certified IGI certified 2.00ct marquise lab grown diamond,...
4.00ct Pink Marquise Lab Grown Diamond - The Carat Club

3.00ct Pink Marquise Lab Grown Diamond

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

4.00ct Pink Marquise Lab Grown Diamond

Regular price £1,560.00
Sale price £1,560.00 Regular price
Unit price
4.00ct Pink Marquise Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy intense pink...
4.00ct Blue Marquise Lab Grown Diamond - The Carat Club

4.00ct Blue Marquise Lab Grown Diamond

Regular price £1,680.00
Sale price £1,680.00 Regular price
Unit price
4.00ct Blue Marquise Lab Grown Diamond - IGI Certified IGI certified 4.00ct fancy vivid blue...
D colour marquise cut lab grown diamond loose IGI certified

3.00ct Marquise Lab Grown Diamond

Regular price From £2,550.00
Sale price From £2,550.00 Regular price
Unit price
3.00ct Marquise Lab Grown Diamond - IGI Certified IGI certified 3.00ct marquise lab grown diamond,...
D colour marquise cut lab grown diamond loose IGI certified

4.00ct Marquise Lab Grown Diamond

Regular price From £2,700.00
Sale price From £2,700.00 Regular price
Unit price
4.00ct Marquise Lab Grown Diamond - IGI Certified IGI certified 4.00ct marquise lab grown diamond,...
Sort by
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old