Cushion|Lab Grown|IGI

3.03ct G SI2 Cushion Lab Grown Diamond

ID • G/SI2 • IGI LG542230641

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG542230641

Diamond specifications and retailer prices

From £1,434 GBP
As of November 6, 2026
Save £3,707 GBP (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,941 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 3.03ct lab-grown cushion diamond

This 3.03ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG542230641 or 542230641. Listed at 8 retailers as of November 6, 2026, with a 258% 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

3.03
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542230641
Dimensions9.19 × 8.08 × 5.24 mm
L/W Ratio1.14
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
9.19 mm8.08 mm3.03 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542230641
Side View
Table 60.5%Crown 33.2°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 64.9%

Caratlytics Score

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

Last verified: Nov 6
Current: £6,941 GBP|Low: £1,434 GBP|High: £11,311 GBP|Avg: £6,063 GBP|-2.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3£1,434 GBP
Retailer 7£5,142 GBP
Retailer 6£5,391 GBP
Retailer 5£5,583 GBP
Retailer 4£6,474 GBP
77 Diamonds£6,941 GBP
Retailer 2£11,132 GBP

42 data points across 7 retailers

8 retailers£1,434 GBP to £5,142 GBP

B+
Cheapest Retailer
-
£1,434 GBP
B
Retailer 2
-
£5,142 GBP
View
Retailer 3
-
£5,391 GBP
View
Price under review
Final sale: no returns
Retailer 4
-
£5,415 GBP
View
Price under review
Retailer 5
-
£5,583 GBP
View
Price under review
Retailer 6
-
£6,474 GBP
View
Price under review
Most Expensive
77 Diamonds
CUSPUIFS8NXXSXG7 · Nov 6
£6,941 GBP
View
Price under review
6 more retailers have this diamond
Prices start from £1,434 GBPSave up to £3,707 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.

B+
3.03ct Cushion
£1,434 GBP