Heart|Lab Grown|IGI

3.51ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG800611924

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800611924

Diamond specifications and retailer prices

From £2,936 GBP

$3,910 USD

As of October 30, 2026

Save £9,796 GBP (77%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £12,732 GBP at With Clarity · As of October 30, 2026

View at With Clarity

About this 3.51ct lab-grown heart diamond

This 3.51ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800611924 or 800611924. Listed at 22 retailers as of October 30, 2026, with prices from £2,936 to £12,732, a £9,796 spread on the same certified stone. With Clarity lists it at £12,732. 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

3.51

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.7°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG800611924

Dimensions10.55 × 9.35 × 6.17 mm

L/W Ratio1.13

Girdle conditionFaceted

Culet sizePointed

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG800611924

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 30

Current: £7,908 GBP|Low: £2,819 GBP|High: £13,858 GBP|Avg: £6,393 GBP|+1.9%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

With Clarity

October 29, 2026

Retailer 18£2,936 GBP

Retailer 6£3,077 GBP

Retailer 7£3,226 GBP

Retailer 8£3,288 GBP

Retailer 3£3,406 GBP

Retailer 5£3,433 GBP

Retailer 17£3,451 GBP

Retailer 16£3,985 GBP

Retailer 14£4,018 GBP

Retailer 4£4,256 GBP

Retailer 12£4,467 GBP

Retailer 15£5,020 GBP

Retailer 13£7,336 GBP

Retailer 1£7,908 GBP

Retailer 2£8,599 GBP

Retailer 9£9,921 GBP

Retailer 10£11,627 GBP

Retailer 11£12,070 GBP

With Clarity£12,477 GBP

Retailer 19£12,631 GBP

39 data points across 20 retailers

22 retailers£2,936 GBP to £12,732 GBP

Cheapest Retailer

£2,936 GBP

$3,910 USD

Retailer 2

£3,077 GBP

$4,098 USD

View

Retailer 3

£3,226 GBP

$4,296 USD

View

Retailer 4

£3,288 GBP

$4,379 USD

View

Final sale: no returns

Retailer 5

£3,406 GBP

$4,536 USD

View

Price last confirmed 17 days ago

B+

Retailer 6

£3,406 GBP

$4,536 USD

View

B+

Retailer 7

£3,433 GBP

$4,571 USD

View

B+

Retailer 8

£3,451 GBP

$4,595 USD

View

B+

Retailer 9

£3,985 GBP

$5,307 USD

View

B+

Retailer 10

£4,018 GBP

HK$41,800 HKD

View

B+

Retailer 11

£4,256 GBP

$5,668 USD

View

B+

Retailer 12

£4,467 GBP

View

B+

Retailer 13

£5,020 GBP

$6,685 USD

View

B+

Retailer 14

£7,336 GBP

View

B+

Retailer 15

£7,908 GBP

ZAR 170,136 ZAR

View

Retailer 16

£8,216 GBP

$10,941 USD

View

Retailer 17

£8,599 GBP

$11,451 USD

View

Retailer 18

£9,921 GBP

$13,212 USD

View

Retailer 19

£11,627 GBP

SGD 20,923 SGD

View

Retailer 20

£12,070 GBP

$16,073 USD

View

Retailer 21

£12,631 GBP

$16,820 USD

View

Most Expensive

With Clarity

800611924 · Oct 30

£12,732 GBP

$16,955 USD

View

21 more retailers have this diamond

Prices start from £2,936 GBPSave up to £9,796 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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