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Marquise|Lab Grown|IGI

1.03ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG551279669

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG551279669

Diamond specifications and retailer prices

From £197 GBP
As of November 3, 2026
Save £676 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £873 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG551279669 or 551279669. Listed at 16 retailers as of November 2, 2026, with prices from £197 to £873, a £676 spread on the same certified stone. MOH London lists it at £873. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551279669
Dimensions10.14 × 5.41 × 3.34 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
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
10.14 mm5.41 mm1.03 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551279669
Side View
Table 61.0%Crown 33.9°Girdle: THN-MEDPavilion 42°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 3
Current: £873 GBP|Low: £169 GBP|High: £883 GBP|Avg: £401 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 10£175 GBP
Retailer 5£197 GBP
Retailer 3£204 GBP
Retailer 4£218 GBP
Retailer 12£218 GBP
Retailer 14£368 GBP
Retailer 8£376 GBP
Retailer 6£390 GBP
Retailer 11£394 GBP
Retailer 2£407 GBP
Retailer 7£533 GBP
Retailer 13£700 GBP
Retailer 9£702 GBP
MOH London£873 GBP

43 data points across 14 retailers

16 retailers£197 GBP to £873 GBP

Retailer 1
-
£175 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
£197 GBP
View
Final sale: no returns
Retailer 3
-
£204 GBP
View
Price last confirmed 13 days ago
Retailer 4
-
£218 GBP
View
Price last confirmed 12 days ago
Retailer 5
-
£218 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£264 GBP
View
B+
Retailer 7
-
£368 GBP
View
B+
Retailer 8
-
£376 GBP
View
B+
Retailer 9
-
£390 GBP
View
B+
Retailer 10
-
£394 GBP
View
B+
Retailer 11
-
£407 GBP
View
B+
Retailer 12
-
£533 GBP
View
Retailer 13
-
£700 GBP
View
Price last confirmed 12 days ago
B
Retailer 14
-
£702 GBP
View
B
Retailer 15
-
£739 GBP
View
Most Expensive
B
MOH London
LG551279669 · Nov 2
£873 GBP
View
15 more retailers have this diamond
Prices start from £197 GBPSave up to £676 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
1.03ct Marquise
£197 GBP