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Cushion|Lab Grown|IGI

2.52ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG627424023

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG627424023

Diamond specifications and retailer prices

From £256 GBP
$343 USD
As of October 30, 2026
Save £1,431 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,687 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.52ct lab-grown cushion diamond

This 2.52ct lab-grown cushion 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 LG627424023 or 627424023. Listed at 11 retailers as of October 29, 2026, with prices from £256 to £1,687, a £1,431 spread on the same certified stone. Brilliant Earth lists it at £1,687. 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

2.52
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627424023
Dimensions9.64 × 7.01 × 4.28 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.64 mm7.01 mm2.52 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627424023
Side View
Table 63.0%Crown 35.4°Girdle: STK-VTKPavilion 30.7°Culet: NoneDepth 61.1%

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 30
Current: £1,687 GBP|Low: £196 GBP|High: £1,903 GBP|Avg: £708 GBP|-11.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3£256 GBP
Retailer 11£283 GBP
Retailer 6£384 GBP
Retailer 9£384 GBP
Retailer 4£451 GBP
Retailer 10£475 GBP
Retailer 2£502 GBP
Retailer 8£708 GBP
Retailer 5£1,140 GBP
Retailer 7£1,258 GBP
Brilliant Earth£1,687 GBP

39 data points across 11 retailers

11 retailers£256 GBP to £1,687 GBP

A
Cheapest Retailer
-
£256 GBP
$343 USD
Final sale: no returns
A
Retailer 2
-
£283 GBP
$379 USD
View
A
Retailer 3
-
£384 GBP
$515 USD
View
B+
Retailer 4
-
£384 GBP
$515 USD
View
A
Retailer 5
-
£451 GBP
€576 EUR
View
A
Retailer 6
-
£475 GBP
$636 USD
View
A
Retailer 7
-
£502 GBP
View
B+
Retailer 8
-
£708 GBP
$948 USD
View
B
Retailer 9
-
£1,140 GBP
View
B
Retailer 10
-
£1,258 GBP
$1,685 USD
View
Most Expensive
B
Brilliant Earth
17313060A · Oct 29
£1,687 GBP
$2,260 USD
View
10 more retailers have this diamond
Prices start from £256 GBPSave up to £1,431 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
2.52ct Cushion
£256 GBP