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Heart|Lab Grown|IGI

1.04ct E FL Heart Lab Grown Diamond

VG • E/FL • IGI LG840620876

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840620876

Diamond specifications and retailer prices

From £291 GBP
$388 USD
As of October 27, 2026
Save £1,361 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,652 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.04ct lab-grown heart diamond

This 1.04ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840620876 or 840620876. Listed at 18 retailers as of October 27, 2026, with prices from £291 to £1,652, a £1,361 spread on the same certified stone. Brilliant Earth lists it at £1,652. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.04
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840620876
Dimensions6.40 × 7.07 × 4.01 mm
L/W Ratio1.10
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
Top View
6.40 mm7.07 mm1.04 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840620876
Side View
Table 56.0%Crown 35.7°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 56.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,652 GBP|Low: £291 GBP|High: £1,652 GBP|Avg: £744 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 8£291 GBP
Retailer 3£326 GBP
Retailer 4£327 GBP
Retailer 11£362 GBP
Retailer 14£385 GBP
Retailer 6£473 GBP
Retailer 7£492 GBP
Retailer 18£509 GBP
Retailer 12£583 GBP
Retailer 15£587 GBP
Retailer 17£622 GBP
Retailer 2£653 GBP
Retailer 9£830 GBP
Retailer 16£1,162 GBP
Retailer 10£1,191 GBP
Retailer 5£1,348 GBP
Retailer 13£1,421 GBP
Brilliant Earth£1,652 GBP

4 data points across 18 retailers

18 retailers£291 GBP to £1,652 GBP

A
Cheapest Retailer
-
£291 GBP
$388 USD
A
Retailer 2
-
£326 GBP
$434 USD
View
Final sale: no returns
A
Retailer 3
-
£327 GBP
$435 USD
View
A
Retailer 4
-
£362 GBP
$482 USD
View
A
Retailer 5
-
£385 GBP
View
B+
Retailer 6
-
£473 GBP
$630 USD
View
B+
Retailer 7
-
£492 GBP
$655 USD
View
B+
Retailer 8
-
£509 GBP
$678 USD
View
B+
Retailer 9
-
£583 GBP
€739 EUR
View
B+
Retailer 10
-
£587 GBP
$782 USD
View
B+
Retailer 11
-
£622 GBP
ZAR 13,372 ZAR
View
B+
Retailer 12
-
£653 GBP
View
B
Retailer 13
-
£830 GBP
$1,106 USD
View
B
Retailer 14
-
£1,162 GBP
$1,548 USD
View
B
Retailer 15
-
£1,191 GBP
$1,586 USD
View
B
Retailer 16
-
£1,348 GBP
$1,795 USD
View
B
Retailer 17
-
£1,421 GBP
View
Most Expensive
B
Brilliant Earth
22319838A · Oct 28
£1,652 GBP
$2,200 USD
View
17 more retailers have this diamond
Prices start from £291 GBPSave up to £1,361 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.

A
1.04ct Heart
£291 GBP