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Cushion|Lab Grown|IGI

2.54ct G SI1 Cushion Lab Grown Diamond

EX • G/SI1 • IGI LG571382098

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG571382098

Diamond specifications and retailer prices

From £407 GBP
$545 USD
As of November 1, 2026
Save £813 GBP (67%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,220 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.54ct lab-grown cushion diamond

This 2.54ct lab-grown cushion sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG571382098 or 571382098. Listed at 6 retailers as of October 29, 2026, with prices from £407 to £1,220, a £813 spread on the same certified stone. MOH London lists it at £1,220. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571382098
Dimensions7.75 × 7.70 × 5.03 mm
L/W Ratio1.01
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
7.75 mm7.70 mm2.54 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG571382098
Side View
Table 67.0%Crown 36.9°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 65.3%

Caratlytics Score

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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 1
Current: £1,220 GBP|Low: £407 GBP|High: £1,251 GBP|Avg: £750 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£407 GBP
Retailer 8£485 GBP
Retailer 5£525 GBP
Retailer 2£537 GBP
Retailer 3£622 GBP
Retailer 6£1,006 GBP
MOH London£1,220 GBP
Retailer 7£1,251 GBP

17 data points across 8 retailers

6 retailers£407 GBP to £1,220 GBP

B+
Cheapest Retailer
-
£407 GBP
$545 USD
A
Retailer 2
-
£525 GBP
$704 USD
View
A
Retailer 3
-
£537 GBP
View
B+
Retailer 4
-
£622 GBP
$834 USD
View
B
Retailer 5
-
£1,006 GBP
$1,348 USD
View
Most Expensive
B
MOH London
LG571382098 · Oct 29
£1,220 GBP
View
5 more retailers have this diamond
Prices start from £407 GBPSave up to £813 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
2.54ct Cushion
£407 GBP