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Cushion|Lab Grown|IGI

2.55ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG811625714

Shape and cutting style on the report: Cushion antique brilliant

Certificate IGI LG811625714

Diamond specifications and retailer prices

From £502 GBP
As of October 30, 2026
Save £969 GBP (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,471 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 2.55ct lab-grown cushion diamond

This 2.55ct 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 LG811625714 or 811625714. Listed at 9 retailers as of October 25, 2026, with prices from £502 to £1,471, a £969 spread on the same certified stone. MOH London lists it at £1,471. 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

2.55
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle45.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811625714
Dimensions9.58 × 7.05 × 4.95 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.58 mm7.05 mm2.55 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811625714
Side View
Table 62.0%Crown 36.8°Girdle: MED-STKPavilion 45.6°Culet: NoneDepth 70.2%

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: £1,471 GBP|Low: £400 GBP|High: £1,487 GBP|Avg: £779 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£400 GBP
Retailer 2£502 GBP
Retailer 4£605 GBP
Retailer 6£630 GBP
Retailer 8£640 GBP
Retailer 3£660 GBP
Retailer 7£666 GBP
Retailer 9£1,310 GBP
MOH London£1,471 GBP

34 data points across 9 retailers

9 retailers£502 GBP to £1,471 GBP

Retailer 1
-
£400 GBP
$536 USD
Price last confirmed 18 days ago
A
Retailer 2
-
£502 GBP
View
B+
Retailer 3
-
£605 GBP
$810 USD
View
B+
Retailer 4
-
£630 GBP
$844 USD
View
B+
Retailer 5
-
£640 GBP
$857 USD
View
B+
Retailer 6
-
£660 GBP
View
B+
Retailer 7
-
£666 GBP
$892 USD
View
B
Retailer 8
-
£1,310 GBP
$1,755 USD
View
Most Expensive
B
MOH London
LG811625714 · Oct 25
£1,471 GBP
View
8 more retailers have this diamond
Prices start from £502 GBPSave up to £969 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
2.55ct Cushion
£502 GBP