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Heart|Lab Grown|IGI

2.54ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG826614471

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG826614471

Diamond specifications and retailer prices

From $370 USD
As of October 27, 2026
Save $1,277 USD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,800 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.54ct lab-grown heart diamond

This 2.54ct 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 LG826614471 or 826614471. Listed at 16 retailers as of October 26, 2026, with a 345% 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

2.54
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826614471
Dimensions8.30 × 9.67 × 5.58 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.30 mm9.67 mm2.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826614471
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 57.7%

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: Oct 27
Current: $3,800 USD|Low: $370 USD|High: $3,920 USD|Avg: $1,194 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 11$370 USD
Retailer 8$448 USD
Retailer 5$515 USD
Retailer 2$565 USD
Retailer 10$664 USD
Retailer 4$707 USD
Retailer 6$730 USD
Retailer 12$830 USD
Retailer 9$1,016 USD
Retailer 3$1,314 USD
Retailer 7$1,647 USD
Brilliant Earth$3,800 USD

39 data points across 12 retailers

16 retailers$370 USD to $1,647 USD

Retailer 1
-
$331 USD
Price last confirmed 13 days ago
A
Retailer 2
-
$370 USD
View
Final sale: no returns
Retailer 3
-
$384 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$410 USD
View
Price last confirmed 32 days ago
A
Retailer 5
-
$448 USD
HK$3,500 HKD
View
A
Retailer 6
-
$515 USD
£406 GBP
View
A
Retailer 7
-
$565 USD
View
B+
Retailer 8
-
$664 USD
View
A
Retailer 9
-
$707 USD
A$1,088 AUD
View
A
Retailer 10
-
$730 USD
£575 GBP
View
B+
Retailer 11
-
$830 USD
View
B+
Retailer 12
-
$1,016 USD
View
B+
Retailer 13
-
$1,314 USD
SGD 1,776 SGD
View
Retailer 14
-
$1,319 USD
View
Price last confirmed 13 days ago
B
Retailer 15
-
$1,647 USD
£1,297 GBP
View
Most Expensive
Brilliant Earth
21274527A · Oct 29
$3,800 USD
View
Price under review
15 more retailers have this diamond
Prices start from $370 USDSave up to $1,277 USD

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
2.54ct Heart
$370 USD