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Cushion|Lab Grown|IGI

2.03ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG508129976

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG508129976

Diamond specifications and retailer prices

From £232 GBP
As of November 6, 2026
Save £934 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,763 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.03ct lab-grown cushion diamond

This 2.03ct 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 LG508129976 or 508129976. Listed at 14 retailers as of November 6, 2026, with a 403% 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

2.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508129976
Dimensions7.39 × 7.22 × 4.95 mm
L/W Ratio1.02
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
7.39 mm7.22 mm2.03 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508129976
Side View
Table 60.5%Crown 36.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 68.6%

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 6
Current: £1,165 GBP|Low: £232 GBP|High: £1,853 GBP|Avg: £603 GBP|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3£232 GBP
Retailer 9£256 GBP
Retailer 10£344 GBP
Retailer 8£374 GBP
Retailer 5£448 GBP
Retailer 6£456 GBP
Retailer 11£467 GBP
Retailer 7£660 GBP
Retailer 4£899 GBP
Retailer 2£1,023 GBP
Brilliant Earth£1,165 GBP

44 data points across 11 retailers

14 retailers£232 GBP to £1,165 GBP

A
Cheapest Retailer
-
£232 GBP
Final sale: no returns
A
Retailer 2
-
£256 GBP
View
B+
Retailer 3
-
£344 GBP
View
A
Retailer 4
-
£374 GBP
View
A
Retailer 5
-
£448 GBP
View
A
Retailer 6
-
£456 GBP
View
A
Retailer 7
-
£467 GBP
View
A
Retailer 8
-
£476 GBP
View
B+
Retailer 9
-
£660 GBP
View
B+
Retailer 10
-
£862 GBP
View
B+
Retailer 11
-
£899 GBP
View
B
Retailer 12
-
£1,023 GBP
View
B
Retailer 13
-
£1,165 GBP
View
Most Expensive
Brilliant Earth
11157553A · Oct 29
£1,763 GBP
$2,360 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from £232 GBPSave up to £934 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
2.03ct Cushion
£232 GBP