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Heart|Lab Grown|IGI

1.53ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681477

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681477

Diamond specifications and retailer prices

From £423 GBP
As of November 4, 2026
Save £3,333 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,756 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 LG818681477 or 818681477. Listed at 11 retailers as of November 4, 2026, with prices from £423 to £3,756, a £3,333 spread on the same certified stone. Do Amore Diamonds lists it at £3,756. 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 angle35.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681477
Dimensions7.02 × 7.84 × 4.73 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
Top View
7.02 mm7.84 mm1.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681477
Side View
Table 58.0%Crown 35.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 60.3%

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: £3,756 GBP|Low: £423 GBP|High: £5,407 GBP|Avg: £1,744 GBP|-30.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 7£423 GBP
Retailer 11£474 GBP
Retailer 12£630 GBP
Retailer 3£663 GBP
Retailer 8£808 GBP
Retailer 2£1,159 GBP
Retailer 9£1,302 GBP
Retailer 10£1,524 GBP
Retailer 5£2,283 GBP
Retailer 6£2,519 GBP
Retailer 4£3,168 GBP
Do Amore Diamonds£3,756 GBP

25 data points across 12 retailers

11 retailers£423 GBP to £3,756 GBP

A
Cheapest Retailer
-
£423 GBP
A
Retailer 2
-
£474 GBP
View
A
Retailer 3
-
£630 GBP
View
A
Retailer 4
-
£663 GBP
View
A
Retailer 5
-
£808 GBP
View
B+
Retailer 6
-
£1,159 GBP
View
B+
Retailer 7
-
£1,302 GBP
View
B+
Retailer 8
-
£1,524 GBP
View
B
Retailer 9
-
£2,283 GBP
View
B
Retailer 10
-
£2,519 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D56858526 · Nov 4
£3,756 GBP
$5,070 USD
View
10 more retailers have this diamond
Prices start from £423 GBPSave up to £3,333 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
£423 GBP