Heart|Lab Grown|IGI

1.19ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG577398126

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG577398126

Diamond specifications and retailer prices

From £240 GBP

$322 USD

As of October 30, 2026

Save £1,028 GBP (81%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £1,269 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.19ct lab-grown heart diamond

This 1.19ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG577398126 or 577398126. Listed at 20 retailers as of October 30, 2026, with prices from £240 to £1,269, a £1,028 spread on the same certified stone. Brilliant Earth lists it at £1,269. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.19

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.5°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG577398126

Dimensions6.46 × 7.47 × 4.29 mm

L/W Ratio1.16

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 LG577398126

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: £1,269 GBP|Low: £207 GBP|High: £1,702 GBP|Avg: £536 GBP|-25.4%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

October 30, 2026

Retailer 3£207 GBP

Retailer 6£240 GBP

Retailer 4£267 GBP

Retailer 15£267 GBP

Retailer 2£283 GBP

Retailer 14£360 GBP

Retailer 12£362 GBP

Retailer 11£459 GBP

Retailer 8£472 GBP

Retailer 5£508 GBP

Retailer 7£567 GBP

Retailer 10£652 GBP

Retailer 13£820 GBP

Retailer 9£1,076 GBP

Brilliant Earth£1,269 GBP

43 data points across 15 retailers

20 retailers£240 GBP to £1,269 GBP

Retailer 1

£207 GBP

$277 USD

Price last confirmed 28 days ago

Retailer 2

£240 GBP

$322 USD

View

Final sale: no returns

Retailer 3

£250 GBP

$335 USD

View

Price last confirmed 31 days ago

Retailer 4

£267 GBP

$358 USD

View

Price last confirmed 27 days ago

Retailer 5

£283 GBP

View

Retailer 6

£360 GBP

$482 USD

View

Retailer 7

£362 GBP

$485 USD

View

Retailer 8

£459 GBP

ZAR 9,929 ZAR

View

Retailer 9

£472 GBP

View

B+

Retailer 10

£508 GBP

$680 USD

View

B+

Retailer 11

£567 GBP

$759 USD

View

B+

Retailer 12

£580 GBP

$777 USD

View

B+

Retailer 13

£652 GBP

A$1,343 AUD

View

Retailer 14

£820 GBP

$1,099 USD

View

Retailer 15

£858 GBP

$1,150 USD

View

Price last confirmed 29 days ago

Retailer 16

£895 GBP

$1,199 USD

View

Retailer 17

£999 GBP

$1,339 USD

View

Retailer 18

£1,076 GBP

View

Retailer 19

£1,102 GBP

$1,476 USD

View

Most Expensive

Brilliant Earth

10023482A · Oct 30

£1,269 GBP

$1,700 USD

View

19 more retailers have this diamond

Prices start from £240 GBPSave up to £1,028 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.

Similar diamonds

1.19ct Heart

£240 GBP