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Cushion|Lab Grown|IGI

1.51ct G VVS1 Cushion Lab Grown Diamond

EX • G/VVS1 • IGI LG635466090

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG635466090

Diamond specifications and retailer prices

From £539 GBP
As of November 4, 2026
Save £1,387 GBP (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,351 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG635466090 or 635466090. Listed at 13 retailers as of November 4, 2026, with a 257% 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

1.51
Carat
G
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635466090
Dimensions6.60 × 6.55 × 4.49 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
6.60 mm6.55 mm1.51 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635466090
Side View
Table 63.0%Crown 34.6°Girdle: MED-THKPavilion 40°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,351 GBP|Low: £539 GBP|High: £2,481 GBP|Avg: £1,160 GBP|-5.0%
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
November 5, 2026
Retailer 3£539 GBP
Retailer 12£577 GBP
Retailer 10£601 GBP
Retailer 5£621 GBP
Retailer 13£689 GBP
Retailer 9£739 GBP
Retailer 2£883 GBP
Retailer 7£937 GBP
Retailer 6£1,025 GBP
Retailer 8£1,389 GBP
Retailer 4£1,738 GBP
Retailer 11£1,925 GBP
MOH London£2,351 GBP

43 data points across 13 retailers

13 retailers£539 GBP to £1,925 GBP

A
Cheapest Retailer
-
£539 GBP
Final sale: no returns
A
Retailer 2
-
£577 GBP
View
B+
Retailer 3
-
£601 GBP
View
Retailer 4
-
£621 GBP
View
Price last confirmed 19 days ago
B+
Retailer 5
-
£689 GBP
View
B+
Retailer 6
-
£739 GBP
View
B+
Retailer 7
-
£883 GBP
View
B
Retailer 8
-
£937 GBP
View
B
Retailer 9
-
£1,025 GBP
View
B
Retailer 10
-
£1,389 GBP
View
B
Retailer 11
-
£1,738 GBP
View
B
Retailer 12
-
£1,925 GBP
View
Most Expensive
MOH London
LG635466090 · Nov 3
£2,351 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £539 GBPSave up to £1,387 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
1.51ct Cushion
£539 GBP