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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 HK$2,493 HKD
£250 GBP
As of October 31, 2026
Save HK$4,323 HKD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$6,815 HKD 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 HK$2,493 to HK$6,815, a HK$4,323 spread on the same certified stone. MOH London lists it at HK$6,815. 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

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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: Oct 31
Current: HK$6,815 HKD|Low: HK$2,426 HKD|High: HK$6,845 HKD|Avg: HK$3,740 HKD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2HK$2,493 HKD
Retailer 6HK$2,558 HKD
Retailer 5HK$2,660 HKD
Retailer 4HK$3,209 HKD
Retailer 3HK$5,093 HKD
MOH LondonHK$6,815 HKD

18 data points across 6 retailers

5 retailersHK$2,493 HKD to HK$6,815 HKD

A
Cheapest Retailer
-
HK$2,493 HKD
£250 GBP
B+
Retailer 2
-
HK$2,660 HKD
$339 USD
View
B
Retailer 3
-
HK$3,209 HKD
$409 USD
View
B
Retailer 4
-
HK$5,093 HKD
$649 USD
View
Most Expensive
B
MOH London
LG620494509 · Oct 29
HK$6,815 HKD
£684 GBP
View
4 more retailers have this diamond
Prices start from HK$2,493 HKDSave up to HK$4,323 HKD

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
0.51ct Cushion
HK$2,493 HKD