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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG819623711

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819623711

Diamond specifications and retailer prices

From £253 GBP
As of November 4, 2026
Save £504 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £757 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG819623711 or 819623711. Listed at 9 retailers as of November 4, 2026, with prices from £253 to £757, a £504 spread on the same certified stone. MOH London lists it at £757. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819623711
Dimensions7.26 × 5.46 × 3.74 mm
L/W Ratio1.33
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.26 mm5.46 mm1.23 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819623711
Side View
Table 60.0%Crown 40.3°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
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: Nov 4
Current: £757 GBP|Low: £253 GBP|High: £769 GBP|Avg: £472 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 7£253 GBP
Retailer 3£327 GBP
Retailer 2£345 GBP
Retailer 6£370 GBP
Retailer 8£443 GBP
Retailer 4£456 GBP
Retailer 9£648 GBP
Retailer 5£707 GBP
MOH London£757 GBP

43 data points across 9 retailers

9 retailers£253 GBP to £757 GBP

B+
Cheapest Retailer
-
£253 GBP
A
Retailer 2
-
£327 GBP
View
A
Retailer 3
-
£345 GBP
View
A
Retailer 4
-
£370 GBP
View
B+
Retailer 5
-
£443 GBP
View
B+
Retailer 6
-
£456 GBP
View
B
Retailer 7
-
£648 GBP
View
Retailer 8
-
£707 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
LG819623711 · Nov 5
£757 GBP
View
8 more retailers have this diamond
Prices start from £253 GBPSave up to £504 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
1.23ct Cushion
£253 GBP