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Cushion|Lab Grown|IGI

3.51ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG615374632

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG615374632

Diamond specifications and retailer prices

From £395 GBP
$529 USD
As of October 31, 2026
Save £1,222 GBP (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,617 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG615374632 or 615374632. Listed at 10 retailers as of October 29, 2026, with prices from £395 to £1,617, a £1,222 spread on the same certified stone. MOH London lists it at £1,617. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.51
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615374632
Dimensions9.10 × 8.65 × 5.64 mm
L/W Ratio1.05
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
9.10 mm8.65 mm3.51 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615374632
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 65.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £1,617 GBP|Low: £281 GBP|High: £1,627 GBP|Avg: £786 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£395 GBP
Retailer 6£438 GBP
Retailer 4£661 GBP
Retailer 7£683 GBP
Retailer 2£720 GBP
Retailer 9£836 GBP
Retailer 5£860 GBP
Retailer 3£1,274 GBP
MOH London£1,617 GBP

42 data points across 9 retailers

10 retailers£395 GBP to £1,617 GBP

A
Cheapest Retailer
-
£395 GBP
$529 USD
Final sale: no returns
Retailer 2
-
£438 GBP
$587 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£661 GBP
$885 USD
View
B+
Retailer 4
-
£683 GBP
$915 USD
View
A
Retailer 5
-
£720 GBP
View
A
Retailer 6
-
£836 GBP
$1,120 USD
View
B+
Retailer 7
-
£1,274 GBP
View
B+
Retailer 8
-
£1,429 GBP
$1,915 USD
View
B+
Retailer 9
-
£1,541 GBP
$2,065 USD
View
Most Expensive
B+
MOH London
LG615374632 · Oct 29
£1,617 GBP
View
9 more retailers have this diamond
Prices start from £395 GBPSave up to £1,222 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
3.51ct Cushion
£395 GBP