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Marquise|Lab Grown|IGI

1.03ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG541275606

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG541275606

Diamond specifications and retailer prices

From £125 GBP
$168 USD
As of November 2, 2026
Save £603 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £728 GBP at MOH London · As of November 1, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG541275606 or 541275606. Listed at 17 retailers as of November 1, 2026, with prices from £125 to £728, a £603 spread on the same certified stone. MOH London lists it at £728. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541275606
Dimensions10.55 × 5.30 × 3.33 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.55 mm5.30 mm1.03 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541275606
Side View
Table 60.5%Crown 35.6°Girdle: THN-MEDPavilion 39.7°Culet: NoneDepth 62.8%

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 2
Current: £728 GBP|Low: £121 GBP|High: £736 GBP|Avg: £323 GBP|-1.2%
MOH London
Retailer 2
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Retailer 17
November 2, 2026
Retailer 17£125 GBP
Retailer 8£140 GBP
Retailer 15£146 GBP
Retailer 3£156 GBP
Retailer 4£156 GBP
Retailer 2£191 GBP
Retailer 5£248 GBP
Retailer 12£269 GBP
Retailer 10£275 GBP
Retailer 7£280 GBP
Retailer 11£380 GBP
Retailer 13£384 GBP
Retailer 16£393 GBP
Retailer 6£501 GBP
Retailer 14£529 GBP
Retailer 9£541 GBP
MOH London£728 GBP

36 data points across 17 retailers

17 retailers£125 GBP to £728 GBP

A
Cheapest Retailer
-
£125 GBP
$168 USD
A
Retailer 2
-
£140 GBP
$188 USD
View
Final sale: no returns
A
Retailer 3
-
£146 GBP
$195 USD
View
Retailer 4
-
£156 GBP
$209 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£156 GBP
$209 USD
View
A
Retailer 6
-
£191 GBP
View
A
Retailer 7
-
£248 GBP
$332 USD
View
A
Retailer 8
-
£269 GBP
ZAR 5,818 ZAR
View
A
Retailer 9
-
£275 GBP
View
A
Retailer 10
-
£280 GBP
$375 USD
View
B+
Retailer 11
-
£380 GBP
A$783 AUD
View
B+
Retailer 12
-
£384 GBP
$515 USD
View
B+
Retailer 13
-
£393 GBP
$526 USD
View
B+
Retailer 14
-
£501 GBP
$671 USD
View
B
Retailer 15
-
£529 GBP
$709 USD
View
B
Retailer 16
-
£541 GBP
$725 USD
View
Most Expensive
B
MOH London
LG541275606 · Nov 1
£728 GBP
View
16 more retailers have this diamond
Prices start from £125 GBPSave up to £603 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
£125 GBP