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Cushion|Lab Grown|IGI

2.91ct G SI1 Cushion Lab Grown Diamond

EX • G/SI1 • IGI LG563212192

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG563212192

Diamond specifications and retailer prices

From £698 GBP
$935 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £698 GBP at Adiamor
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Adiamor

About this 2.91ct lab-grown cushion diamond

This 2.91ct 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 LG563212192 or 563212192. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

2.91
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG563212192
Dimensions8.38 × 8.24 mm
L/W Ratio1.02
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
8.38 mm8.24 mm2.91 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG563212192
Side View
Table 64.5%Crown 37.4°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £698 GBP|Low: £698 GBP|High: £1,573 GBP|Avg: £1,018 GBP|-44.4%
August 8, 2026
Adiamor£698 GBP

10 data points across 1 retailer

1 retailer

B+
Adiamor
D-62513206 · Oct 30
£698 GBP
$935 USD
View

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B+
2.91ct Cushion
£698 GBP