Heart|Lab Grown|IGI

3.97ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG799648106

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799648106

Diamond specifications and retailer prices

From £2,594 GBP

$3,476 USD

As of October 30, 2026

Save £8,765 GBP (77%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £11,359 GBP at With Clarity · As of October 30, 2026

View at With Clarity

About this 3.97ct lab-grown heart diamond

This 3.97ct 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 LG799648106 or 799648106. Listed at 21 retailers as of October 30, 2026, with prices from £2,594 to £11,359, a £8,765 spread on the same certified stone. With Clarity lists it at £11,359. 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

3.97

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.5°

Pavilion angle38.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG799648106

Dimensions10.67 × 10.11 × 6.15 mm

L/W Ratio1.06

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 LG799648106

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: £9,941 GBP|Low: £2,594 GBP|High: £14,203 GBP|Avg: £5,719 GBP|-30.0%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 9

Retailer 10

Retailer 11

Retailer 12

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Retailer 15

Retailer 16

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Retailer 18

Retailer 19

With Clarity

October 30, 2026

Retailer 5£2,594 GBP

Retailer 2£2,822 GBP

Retailer 4£2,933 GBP

Retailer 10£2,972 GBP

Retailer 16£3,009 GBP

Retailer 11£3,048 GBP

Retailer 17£3,123 GBP

Retailer 8£3,731 GBP

Retailer 18£3,760 GBP

Retailer 19£3,973 GBP

Retailer 13£4,020 GBP

Retailer 7£4,667 GBP

Retailer 14£4,941 GBP

Retailer 15£6,479 GBP

Retailer 12£6,985 GBP

Retailer 6£7,330 GBP

Retailer 1£9,941 GBP

Retailer 9£10,370 GBP

Retailer 3£10,581 GBP

With Clarity£11,359 GBP

26 data points across 20 retailers

21 retailers£2,594 GBP to £11,359 GBP

Cheapest Retailer

£2,594 GBP

$3,476 USD

Retailer 2

£2,822 GBP

$3,781 USD

View

Retailer 3

£2,933 GBP

$3,930 USD

View

Retailer 4

£2,972 GBP

$3,982 USD

View

Final sale: no returns

Retailer 5

£3,009 GBP

$4,032 USD

View

Retailer 6

£3,048 GBP

$4,084 USD

View

Price last confirmed 18 days ago

Retailer 7

£3,123 GBP

$4,185 USD

View

Retailer 8

£3,731 GBP

$4,999 USD

View

Retailer 9

£3,760 GBP

$5,038 USD

View

B+

Retailer 10

£3,973 GBP

$5,323 USD

View

B+

Retailer 11

£4,020 GBP

View

B+

Retailer 12

£4,667 GBP

$6,253 USD

View

B+

Retailer 13

£4,941 GBP

€6,305 EUR

View

B+

Retailer 14

£6,479 GBP

View

B+

Retailer 15

£6,985 GBP

ZAR 151,208 ZAR

View

B+

Retailer 16

£7,330 GBP

$9,821 USD

View

B+

Retailer 17

£7,398 GBP

$9,913 USD

View

Retailer 18

£9,941 GBP

$13,320 USD

View

Retailer 19

£10,370 GBP

SGD 18,777 SGD

View

Retailer 20

£10,581 GBP

$14,177 USD

View

Most Expensive

With Clarity

799648106 · Oct 30

£11,359 GBP

$15,220 USD

View

20 more retailers have this diamond

Prices start from £2,594 GBPSave up to £8,765 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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