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Heart|Lab Grown|IGI

1.53ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG742505330

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742505330

Diamond specifications and retailer prices

From £230 GBP
$308 USD
As of October 30, 2026
Save £943 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,381 GBP at Brilliant Earth · As of October 22, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG742505330 or 742505330. Listed at 14 retailers as of October 30, 2026, with a 410% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742505330
Dimensions7.30 × 7.82 × 4.65 mm
L/W Ratio1.07
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
Top View
7.30 mm7.82 mm1.53 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742505330
Side View
Table 53.0%Crown 35.2°Girdle: MediumPavilion 39.5°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A+
Exceptional
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: £2,381 GBP|Low: £230 GBP|High: £2,463 GBP|Avg: £844 GBP|-3.3%
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
November 1, 2026
Retailer 4£230 GBP
Retailer 7£266 GBP
Retailer 5£296 GBP
Retailer 10£373 GBP
Retailer 9£397 GBP
Retailer 6£470 GBP
Retailer 8£478 GBP
Retailer 13£712 GBP
Retailer 11£916 GBP
Retailer 3£925 GBP
Retailer 2£1,143 GBP
Retailer 12£1,172 GBP
Brilliant Earth£2,381 GBP

36 data points across 13 retailers

14 retailers£230 GBP to £1,172 GBP

A+
Cheapest Retailer
-
£230 GBP
$308 USD
A
Retailer 2
-
£266 GBP
$357 USD
View
A
Retailer 3
-
£296 GBP
$396 USD
View
Final sale: no returns
A
Retailer 4
-
£373 GBP
$500 USD
View
A
Retailer 5
-
£397 GBP
$532 USD
View
A
Retailer 6
-
£470 GBP
€600 EUR
View
A
Retailer 7
-
£478 GBP
$641 USD
View
A
Retailer 8
-
£712 GBP
$954 USD
View
A
Retailer 9
-
£916 GBP
$1,228 USD
View
B+
Retailer 10
-
£925 GBP
$1,239 USD
View
B+
Retailer 11
-
£1,023 GBP
$1,371 USD
View
B+
Retailer 12
-
£1,143 GBP
View
B+
Retailer 13
-
£1,172 GBP
$1,571 USD
View
Most Expensive
Brilliant Earth
16537557A · Oct 22
£2,381 GBP
$3,190 USD
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from £230 GBPSave up to £943 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
£230 GBP