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Cushion|Lab Grown|IGI

2.53ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG838605451

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838605451

Diamond specifications and retailer prices

From $651 USD
As of November 2, 2026
Save $1,509 USD (70%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,160 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.53ct lab-grown cushion diamond

This 2.53ct lab-grown cushion sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838605451 or 838605451. Listed at 7 retailers as of November 2, 2026, with prices from $651 to $2,160, a $1,509 spread on the same certified stone. Brilliant Earth lists it at $2,160. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838605451
Dimensions9.40 × 7.23 × 4.95 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.40 mm7.23 mm2.53 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838605451
Side View
Table 59.0%Crown 34.4°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 68.5%

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 2
Current: $670 USD|Low: $651 USD|High: $2,041 USD|Avg: $1,067 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3$651 USD
Retailer 1$670 USD
Retailer 2$704 USD
Retailer 4$882 USD
Retailer 5$2,041 USD

3 data points across 5 retailers

7 retailers$651 USD to $2,160 USD

A
Cheapest Retailer
-
$651 USD
A
Retailer 2
-
$670 USD
View
A
Retailer 3
-
$704 USD
HK$5,500 HKD
View
A
Retailer 4
-
$794 USD
View
B
Retailer 5
-
$1,685 USD
View
B
Retailer 6
-
$2,041 USD
SGD 2,758 SGD
View
Most Expensive
B
Brilliant Earth
22350671Y · Nov 2
$2,160 USD
View
6 more retailers have this diamond
Prices start from $651 USDSave up to $1,509 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
2.53ct Cushion
$651 USD