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Heart|Lab Grown|IGI

2.53ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG651422268

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG651422268

Diamond specifications and retailer prices

From £249 GBP
$334 USD
As of October 30, 2026
Save £994 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,493 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.53ct lab-grown heart diamond

This 2.53ct lab-grown heart sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651422268 or 651422268. Listed at 15 retailers as of October 29, 2026, with a 399% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.53
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651422268
Dimensions8.58 × 9.76 × 5.29 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm9.76 mm2.53 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651422268
Side View
Table 56.0%Crown 32.6°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 54.2%

Caratlytics Score

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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 30
Current: £1,493 GBP|Low: £239 GBP|High: £2,911 GBP|Avg: £742 GBP|-48.7%
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
October 30, 2026
Retailer 9£249 GBP
Retailer 3£279 GBP
Retailer 12£289 GBP
Retailer 10£309 GBP
Retailer 13£309 GBP
Retailer 5£414 GBP
Retailer 7£422 GBP
Retailer 2£552 GBP
Retailer 4£587 GBP
Retailer 8£764 GBP
Retailer 11£993 GBP
Retailer 6£1,244 GBP
Brilliant Earth£1,493 GBP

44 data points across 13 retailers

15 retailers£249 GBP to £1,244 GBP

A
Cheapest Retailer
-
£249 GBP
$334 USD
A
Retailer 2
-
£279 GBP
$374 USD
View
Final sale: no returns
A
Retailer 3
-
£289 GBP
$387 USD
View
A
Retailer 4
-
£309 GBP
$414 USD
View
A
Retailer 5
-
£309 GBP
$414 USD
View
B+
Retailer 6
-
£414 GBP
$555 USD
View
A
Retailer 7
-
£422 GBP
$565 USD
View
A
Retailer 8
-
£552 GBP
View
B+
Retailer 9
-
£587 GBP
$786 USD
View
B+
Retailer 10
-
£606 GBP
$812 USD
View
B+
Retailer 11
-
£764 GBP
$1,024 USD
View
B
Retailer 12
-
£993 GBP
$1,330 USD
View
B
Retailer 13
-
£1,025 GBP
$1,373 USD
View
B
Retailer 14
-
£1,244 GBP
View
Most Expensive
Brilliant Earth
20626921A · Oct 30
£1,493 GBP
$2,000 USD
View
Price under review
14 more retailers have this diamond
Prices start from £249 GBPSave up to £994 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
2.53ct Heart
£249 GBP