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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 £869 GBP
HK$9,100 HKD
As of October 30, 2026
Save £1,953 GBP (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,823 GBP 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 £869 to £2,823, a £1,953 spread on the same certified stone. MOH London lists it at £2,823. 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: £2,823 GBP|Low: £831 GBP|High: £2,845 GBP|Avg: £1,868 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4£869 GBP
Retailer 8£1,128 GBP
Retailer 3£1,136 GBP
Retailer 2£1,594 GBP
Retailer 7£2,070 GBP
Retailer 5£2,142 GBP
Retailer 6£2,517 GBP
Retailer 9£2,599 GBP
MOH London£2,823 GBP

25 data points across 9 retailers

9 retailers£869 GBP to £2,823 GBP

A
Cheapest Retailer
-
£869 GBP
HK$9,100 HKD
B+
Retailer 2
-
£1,128 GBP
$1,512 USD
View
B+
Retailer 3
-
£1,136 GBP
€1,449 EUR
View
B+
Retailer 4
-
£1,594 GBP
ZAR 34,513 ZAR
View
B
Retailer 5
-
£2,070 GBP
View
Retailer 6
-
£2,142 GBP
$2,870 USD
View
Price last confirmed 13 days ago
B
Retailer 7
-
£2,517 GBP
SGD 4,558 SGD
View
B
Retailer 8
-
£2,599 GBP
$3,482 USD
View
Most Expensive
B
MOH London
LG826610223 · Oct 29
£2,823 GBP
View
8 more retailers have this diamond
Prices start from £869 GBPSave up to £1,953 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
£869 GBP