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Heart|Lab Grown|IGI

1.53ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG797643633

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG797643633

Diamond specifications and retailer prices

From £611 GBP
As of November 4, 2026
Save £3,026 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,637 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 LG797643633 or 797643633. Listed at 19 retailers as of November 4, 2026, with prices from £611 to £3,637, a £3,026 spread on the same certified stone. Brilliant Earth lists it at £3,637. 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 angle34.6°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797643633
Dimensions6.86 × 8.07 × 4.64 mm
L/W Ratio1.18
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
6.86 mm8.07 mm1.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797643633
Side View
Table 56.0%Crown 34.6°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 57.5%

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: £3,637 GBP|Low: £611 GBP|High: £3,637 GBP|Avg: £1,503 GBP
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 9£611 GBP
Retailer 17£664 GBP
Retailer 3£709 GBP
Retailer 6£709 GBP
Retailer 7£731 GBP
Retailer 8£805 GBP
Retailer 19£841 GBP
Retailer 5£881 GBP
Retailer 20£898 GBP
Retailer 12£1,015 GBP
Retailer 2£1,078 GBP
Retailer 14£1,301 GBP
Retailer 18£1,629 GBP
Retailer 10£1,993 GBP
Retailer 16£2,218 GBP
Retailer 4£2,361 GBP
Retailer 11£2,453 GBP
Retailer 13£2,656 GBP
Retailer 15£3,387 GBP
Brilliant Earth£3,637 GBP

24 data points across 20 retailers

19 retailers£611 GBP to £3,637 GBP

A
Cheapest Retailer
-
£611 GBP
A
Retailer 2
-
£664 GBP
View
A
Retailer 3
-
£709 GBP
View
Retailer 4
-
£709 GBP
View
Price last confirmed 19 days ago
A
Retailer 5
-
£731 GBP
View
Final sale: no returns
A
Retailer 6
-
£841 GBP
View
B+
Retailer 7
-
£881 GBP
View
B+
Retailer 8
-
£898 GBP
View
B+
Retailer 9
-
£1,015 GBP
View
B+
Retailer 10
-
£1,078 GBP
View
B+
Retailer 11
-
£1,301 GBP
View
B
Retailer 12
-
£1,629 GBP
View
B
Retailer 13
-
£1,993 GBP
View
B+
Retailer 14
-
£2,218 GBP
View
B
Retailer 15
-
£2,361 GBP
View
B
Retailer 16
-
£2,453 GBP
View
B
Retailer 17
-
£2,656 GBP
View
B
Retailer 18
-
£3,387 GBP
View
Most Expensive
B
Brilliant Earth
21767800A · Nov 4
£3,637 GBP
$4,910 USD
View
18 more retailers have this diamond
Prices start from £611 GBPSave up to £3,026 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
£611 GBP