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Heart|Lab Grown|IGI

1.53ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG830620125

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620125

Diamond specifications and retailer prices

From £510 GBP
As of November 4, 2026
Save £2,067 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,578 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.53ct lab-grown heart diamond

This 1.53ct 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 LG830620125 or 830620125. Listed at 17 retailers as of November 4, 2026, with prices from £510 to £2,578, a £2,067 spread on the same certified stone. Brilliant Earth lists it at £2,578. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620125
Dimensions7.04 × 7.94 × 4.68 mm
L/W Ratio1.13
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
7.04 mm7.94 mm1.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620125
Side View
Table 57.0%Crown 36.8°Girdle: MED-STKPavilion 37.9°Culet: NoneDepth 58.9%

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: Nov 4
Current: £2,578 GBP|Low: £510 GBP|High: £2,726 GBP|Avg: £1,338 GBP|-5.4%
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
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Retailer 17
November 5, 2026
Retailer 15£510 GBP
Retailer 13£539 GBP
Retailer 5£544 GBP
Retailer 11£614 GBP
Retailer 16£678 GBP
Retailer 17£850 GBP
Retailer 10£861 GBP
Retailer 14£890 GBP
Retailer 9£1,047 GBP
Retailer 3£1,279 GBP
Retailer 12£1,531 GBP
Retailer 8£1,787 GBP
Retailer 4£1,879 GBP
Retailer 6£1,951 GBP
Retailer 7£2,062 GBP
Retailer 2£2,287 GBP
Brilliant Earth£2,578 GBP

8 data points across 17 retailers

17 retailers£510 GBP to £2,578 GBP

A
Cheapest Retailer
-
£510 GBP
A
Retailer 2
-
£539 GBP
View
Final sale: no returns
A
Retailer 3
-
£544 GBP
View
A
Retailer 4
-
£614 GBP
View
A
Retailer 5
-
£678 GBP
View
A
Retailer 6
-
£850 GBP
View
A
Retailer 7
-
£861 GBP
View
B+
Retailer 8
-
£890 GBP
View
B+
Retailer 9
-
£1,047 GBP
View
B+
Retailer 10
-
£1,279 GBP
View
B+
Retailer 11
-
£1,531 GBP
View
B
Retailer 12
-
£1,787 GBP
View
B
Retailer 13
-
£1,879 GBP
View
B+
Retailer 14
-
£1,951 GBP
View
B
Retailer 15
-
£2,062 GBP
View
B
Retailer 16
-
£2,287 GBP
View
Most Expensive
B
Brilliant Earth
22348757A · Nov 4
£2,578 GBP
$3,480 USD
View
16 more retailers have this diamond
Prices start from £510 GBPSave up to £2,067 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
1.53ct Heart
£510 GBP