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Cushion|Lab Grown|IGI

4.51ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG826610223

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826610223

Diamond specifications and retailer prices

From HK$9,139 HKD
As of October 30, 2026
Save HK$20,535 HKD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$29,674 HKD at MOH London · As of October 29, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG826610223 or 826610223. Listed at 9 retailers as of October 29, 2026, with prices from HK$9,139 to HK$29,674, a HK$20,535 spread on the same certified stone. MOH London lists it at HK$29,674. 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

4.51
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle43.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826610223
Dimensions11.05 × 8.26 × 6.06 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.05 mm8.26 mm4.51 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826610223
Side View
Table 61.0%Crown 36°Girdle: STK-VTKPavilion 43.2°Culet: NoneDepth 73.4%

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: Oct 30
Current: HK$29,674 HKD|Low: HK$8,737 HKD|High: HK$29,914 HKD|Avg: HK$19,659 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4HK$9,139 HKD
Retailer 8HK$11,863 HKD
Retailer 3HK$11,937 HKD
Retailer 2HK$16,762 HKD
Retailer 7HK$21,763 HKD
Retailer 5HK$22,518 HKD
Retailer 6HK$26,464 HKD
Retailer 9HK$27,320 HKD
MOH LondonHK$29,674 HKD

24 data points across 9 retailers

9 retailersHK$9,139 HKD to HK$29,674 HKD

A
Cheapest Retailer
-
HK$9,139 HKD
B+
Retailer 2
-
HK$11,863 HKD
$1,512 USD
View
B+
Retailer 3
-
HK$11,937 HKD
€1,449 EUR
View
B+
Retailer 4
-
HK$16,762 HKD
ZAR 34,513 ZAR
View
B
Retailer 5
-
HK$21,763 HKD
£2,184 GBP
View
Retailer 6
-
HK$22,518 HKD
$2,870 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
HK$26,464 HKD
SGD 4,558 SGD
View
B
Retailer 8
-
HK$27,320 HKD
$3,482 USD
View
Most Expensive
B
MOH London
LG826610223 · Oct 29
HK$29,674 HKD
£2,978 GBP
View
8 more retailers have this diamond
Prices start from HK$9,139 HKDSave up to HK$20,535 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
4.51ct Cushion
HK$9,139 HKD