Heart|Lab Grown|IGI

2.21ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836620716

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620716

Diamond specifications and retailer prices

From £848 GBP

$1,129 USD

As of October 27, 2026

Save £4,807 GBP (85%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £5,655 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 2.21ct lab-grown heart diamond

This 2.21ct lab-grown heart sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620716 or 836620716. Listed at 20 retailers as of October 27, 2026, with prices from £848 to £5,655, a £4,807 spread on the same certified stone. Brilliant Earth lists it at £5,655. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.21

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.6°

Pavilion angle37.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836620716

Dimensions9.06 × 8.18 × 5.08 mm

L/W Ratio1.11

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG836620716

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27

Current: £5,655 GBP|Low: £848 GBP|High: £5,662 GBP|Avg: £2,303 GBP|-0.1%

Brilliant Earth

Retailer 2

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Retailer 19

October 30, 2026

Retailer 6£848 GBP

Retailer 3£922 GBP

Retailer 11£973 GBP

Retailer 17£983 GBP

Retailer 2£1,085 GBP

Retailer 16£1,115 GBP

Retailer 12£1,425 GBP

Retailer 8£1,563 GBP

Retailer 19£1,636 GBP

Retailer 14£1,648 GBP

Retailer 9£1,820 GBP

Retailer 18£1,843 GBP

Retailer 13£2,537 GBP

Retailer 7£2,842 GBP

Retailer 15£3,176 GBP

Retailer 10£3,437 GBP

Retailer 4£3,440 GBP

Retailer 5£3,720 GBP

Brilliant Earth£5,655 GBP

24 data points across 19 retailers

20 retailers£848 GBP to £5,655 GBP

Cheapest Retailer

£848 GBP

$1,129 USD

Retailer 2

£922 GBP

$1,228 USD

View

Retailer 3

£973 GBP

$1,296 USD

View

Final sale: no returns

Retailer 4

£983 GBP

$1,309 USD

View

Retailer 5

£1,085 GBP

View

Retailer 6

£1,115 GBP

$1,485 USD

View

Retailer 7

£1,130 GBP

$1,505 USD

View

Price last confirmed 17 days ago

Retailer 8

£1,425 GBP

View

Retailer 9

£1,563 GBP

$2,082 USD

View

B+

Retailer 10

£1,636 GBP

$2,179 USD

View

B+

Retailer 11

£1,648 GBP

€2,090 EUR

View

B+

Retailer 12

£1,820 GBP

$2,424 USD

View

B+

Retailer 13

£1,843 GBP

$2,454 USD

View

B+

Retailer 14

£2,537 GBP

ZAR 54,574 ZAR

View

B+

Retailer 15

£2,842 GBP

$3,784 USD

View

B+

Retailer 16

£3,176 GBP

View

Retailer 17

£3,437 GBP

SGD 6,185 SGD

View

B+

Retailer 18

£3,440 GBP

$4,581 USD

View

B+

Retailer 19

£3,720 GBP

$4,954 USD

View

Most Expensive

Brilliant Earth

21590170A · Oct 28

£5,655 GBP

$7,530 USD

View

19 more retailers have this diamond

Prices start from £848 GBPSave up to £4,807 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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