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Cushion|Lab Grown|IGI

4.51ct F VS2 Cushion Lab Grown Diamond

ID • F/VS2 • IGI LG846639641

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846639641

Diamond specifications and retailer prices

From £484 GBP
As of November 2, 2026
Save £1,951 GBP (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,434 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846639641 or 846639641. Listed at 8 retailers as of November 1, 2026, with prices from £484 to £2,434, a £1,951 spread on the same certified stone. MOH London lists it at £2,434. 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

4.51
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846639641
Dimensions11.60 × 8.30 × 5.60 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm8.30 mm4.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846639641
Side View
Table 63.0%Crown 34.5°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
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 2
Current: £2,434 GBP|Low: £484 GBP|High: £2,446 GBP|Avg: £1,189 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2£484 GBP
Retailer 5£506 GBP
Retailer 4£656 GBP
Retailer 8£859 GBP
Retailer 3£877 GBP
Retailer 7£1,309 GBP
Retailer 6£1,788 GBP
MOH London£2,434 GBP

8 data points across 8 retailers

8 retailers£484 GBP to £2,434 GBP

A
Cheapest Retailer
-
£484 GBP
A
Retailer 2
-
£506 GBP
$679 USD
View
Final sale: no returns
A
Retailer 3
-
£656 GBP
$880 USD
View
B+
Retailer 4
-
£859 GBP
$1,153 USD
View
A
Retailer 5
-
£877 GBP
View
A
Retailer 6
-
£1,309 GBP
$1,757 USD
View
B+
Retailer 7
-
£1,788 GBP
$2,400 USD
View
Most Expensive
B
MOH London
LG846639641 · Nov 1
£2,434 GBP
View
7 more retailers have this diamond
Prices start from £484 GBPSave up to £1,951 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
4.51ct Cushion
£484 GBP