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Marquise|Lab Grown|IGI

1.23ct G VVS1 Marquise Lab Grown Diamond

ID • G/VVS1 • IGI LG772699763

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG772699763

Diamond specifications and retailer prices

From £288 GBP
As of November 1, 2026
Save £472 GBP (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £761 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG772699763 or 772699763. Listed at 7 retailers as of November 1, 2026, with prices from £288 to £761, a £472 spread on the same certified stone. MOH London lists it at £761. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772699763
Dimensions11.52 × 5.53 × 3.41 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm5.53 mm1.23 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772699763
Side View
Table 61.0%Crown 32.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

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: Nov 1
Current: £761 GBP|Low: £282 GBP|High: £811 GBP|Avg: £484 GBP|-5.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6£288 GBP
Retailer 2£292 GBP
Retailer 4£403 GBP
Retailer 3£423 GBP
Retailer 5£563 GBP
Retailer 7£580 GBP
MOH London£761 GBP

39 data points across 7 retailers

7 retailers£288 GBP to £761 GBP

A
Cheapest Retailer
-
£288 GBP
A
Retailer 2
-
£292 GBP
View
B+
Retailer 3
-
£403 GBP
View
B+
Retailer 4
-
£423 GBP
View
B+
Retailer 5
-
£563 GBP
View
B+
Retailer 6
-
£580 GBP
View
Most Expensive
B
MOH London
LG772699763 · Nov 2
£761 GBP
View
6 more retailers have this diamond
Prices start from £288 GBPSave up to £472 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 Marquise
£288 GBP