Cushion|Lab Grown|IGI

1.01ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG818682931

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818682931

Diamond specifications and retailer prices

From £240 GBP
€306 EUR
As of October 29, 2026
Save £393 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £633 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818682931 or 818682931. Listed at 6 retailers as of October 29, 2026, with prices from £240 to £633, a £393 spread on the same certified stone. MOH London lists it at £633. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682931
Dimensions5.99 × 5.70 × 3.84 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.99 mm5.70 mm1.01 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682931
Side View
Table 70.0%Crown 35.1°Girdle: MED-STKPavilion 42.3°Culet: NoneDepth 67.4%

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 29
Current: £633 GBP|Low: £87 GBP|High: £650 GBP|Avg: £311 GBP|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7£121 GBP
Retailer 8£134 GBP
Retailer 2£240 GBP
Retailer 5£241 GBP
Retailer 3£249 GBP
Retailer 4£264 GBP
Retailer 9£334 GBP
Retailer 6£474 GBP
MOH London£633 GBP

23 data points across 9 retailers

6 retailers£240 GBP to £633 GBP

Retailer 1
-
£134 GBP
$180 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£240 GBP
€306 EUR
View
A
Retailer 3
-
£249 GBP
$333 USD
View
Retailer 4
-
£264 GBP
View
Price last confirmed 20 days ago
Retailer 5
-
£474 GBP
$635 USD
View
Price last confirmed 19 days ago
Most Expensive
B
MOH London
LG818682931 · Oct 29
£633 GBP
View
5 more retailers have this diamond
Prices start from £240 GBPSave up to £393 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
1.01ct Cushion
£240 GBP