Heart|Lab Grown|IGI

1.76ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG844643008

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844643008

Diamond specifications and retailer prices

From £1,085 GBP

$1,454 USD

As of October 30, 2026

Save £3,824 GBP (78%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £4,909 GBP at Riddles Jewelry · As of October 29, 2026

View at Riddles Jewelry

About this 1.76ct lab-grown heart diamond

This 1.76ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844643008 or 844643008. Listed at 17 retailers as of October 29, 2026, with prices from £1,085 to £4,909, a £3,824 spread on the same certified stone. Riddles Jewelry lists it at £4,909. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.76

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.9°

Pavilion angle38.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG844643008

Dimensions8.37 × 7.45 × 4.75 mm

L/W Ratio1.12

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG844643008

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: £1,385 GBP|Low: £1,067 GBP|High: £4,909 GBP|Avg: £2,430 GBP|-3.0%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

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Retailer 15

Retailer 16

Riddles Jewelry

October 30, 2026

Retailer 3£1,085 GBP

Retailer 14£1,086 GBP

Retailer 10£1,086 GBP

Retailer 13£1,195 GBP

Retailer 4£1,330 GBP

Retailer 1£1,385 GBP

Retailer 8£1,633 GBP

Retailer 9£1,757 GBP

Retailer 16£2,341 GBP

Retailer 15£2,549 GBP

Retailer 12£2,896 GBP

Retailer 5£3,043 GBP

Retailer 11£3,075 GBP

Retailer 7£3,341 GBP

Retailer 2£3,749 GBP

Retailer 6£4,609 GBP

Riddles Jewelry£4,909 GBP

17 data points across 17 retailers

17 retailers£1,085 GBP to £4,909 GBP

B+

Cheapest Retailer

£1,085 GBP

$1,454 USD

Final sale: no returns

Retailer 2

£1,086 GBP

View

Price last confirmed 14 days ago

Retailer 3

£1,086 GBP

$1,455 USD

View

B+

Retailer 4

£1,195 GBP

$1,601 USD

View

B+

Retailer 5

£1,330 GBP

$1,782 USD

View

B+

Retailer 6

£1,385 GBP

View

B+

Retailer 7

£1,633 GBP

$2,188 USD

View

B+

Retailer 8

£1,757 GBP

ZAR 38,026 ZAR

View

Retailer 9

£2,341 GBP

$3,136 USD

View

Retailer 10

£2,549 GBP

$3,415 USD

View

Retailer 11

£2,896 GBP

CA$5,389 CAD

View

Retailer 12

£3,043 GBP

$4,078 USD

View

Retailer 13

£3,075 GBP

View

Retailer 14

£3,341 GBP

$4,477 USD

View

Retailer 15

£3,749 GBP

$5,023 USD

View

Retailer 16

£4,609 GBP

$6,176 USD

View

Most Expensive

Riddles Jewelry

1993598053 · Oct 29

£4,909 GBP

$6,578 USD

View

16 more retailers have this diamond

Prices start from £1,085 GBPSave up to £3,824 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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1.76ct Heart

£1,085 GBP