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Cushion|Lab Grown|IGI

1.30ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG750558903

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG750558903

Diamond specifications and retailer prices

From £236 GBP
As of November 1, 2026
Save £363 GBP (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £816 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG750558903 or 750558903. Listed at 14 retailers as of October 31, 2026, with a 154% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750558903
Dimensions7.72 × 5.66 × 3.83 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.72 mm5.66 mm1.30 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750558903
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 67.7%

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: £816 GBP|Low: £158 GBP|High: £825 GBP|Avg: £398 GBP|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 3£158 GBP
Retailer 13£175 GBP
Retailer 14£236 GBP
Retailer 7£296 GBP
Retailer 9£299 GBP
Retailer 2£316 GBP
Retailer 4£360 GBP
Retailer 6£367 GBP
Retailer 10£425 GBP
Retailer 12£442 GBP
Retailer 11£487 GBP
Retailer 8£535 GBP
Retailer 5£573 GBP
MOH London£816 GBP

40 data points across 14 retailers

14 retailers£236 GBP to £600 GBP

Retailer 1
-
£175 GBP
Price last confirmed 11 days ago
B+
Retailer 2
-
£236 GBP
View
A
Retailer 3
-
£296 GBP
View
Retailer 4
-
£299 GBP
View
Price last confirmed 9 days ago
A
Retailer 5
-
£316 GBP
View
A
Retailer 6
-
£360 GBP
View
A
Retailer 7
-
£367 GBP
View
Retailer 8
-
£425 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£442 GBP
View
Retailer 10
-
£487 GBP
View
Price last confirmed 15 days ago
B+
Retailer 11
-
£535 GBP
View
B+
Retailer 12
-
£585 GBP
View
B+
Retailer 13
-
£600 GBP
View
Most Expensive
MOH London
LG750558903 · Oct 26
£816 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £236 GBPSave up to £363 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
1.30ct Cushion
£236 GBP