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Cushion|Lab Grown|IGI

0.51ct E VVS1 Cushion Lab Grown Diamond

VG • E/VVS1 • IGI LG620494509

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG620494509

Diamond specifications and retailer prices

From £239 GBP
As of October 30, 2026
Save £409 GBP (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £648 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG620494509 or 620494509. Listed at 5 retailers as of October 29, 2026, with prices from £239 to £648, a £409 spread on the same certified stone. MOH London lists it at £648. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620494509
Dimensions6.24 × 3.74 × 2.38 mm
L/W Ratio1.67
Girdle conditionFaceted
Culet sizeLarge
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
6.24 mm3.74 mm0.51 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG620494509
Side View
Table 68.0%Crown 34.8°Girdle: THN-STKPavilion 40.1°Culet: LargeDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £648 GBP|Low: £231 GBP|High: £651 GBP|Avg: £355 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 2£239 GBP
Retailer 6£243 GBP
Retailer 5£253 GBP
Retailer 4£305 GBP
Retailer 3£484 GBP
MOH London£648 GBP

17 data points across 6 retailers

5 retailers£239 GBP to £648 GBP

B+
Cheapest Retailer
-
£239 GBP
B+
Retailer 2
-
£253 GBP
$339 USD
View
B
Retailer 3
-
£305 GBP
$409 USD
View
B
Retailer 4
-
£484 GBP
$649 USD
View
Most Expensive
B
MOH London
LG620494509 · Oct 29
£648 GBP
View
4 more retailers have this diamond
Prices start from £239 GBPSave up to £409 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+
0.51ct Cushion
£239 GBP