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Marquise|Lab Grown|IGI

1.01ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG502155941

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG502155941

Diamond specifications and retailer prices

From £540 GBP
As of November 4, 2026
Save £1,417 GBP (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,464 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.01ct lab-grown marquise diamond

This 1.01ct lab-grown marquise 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 LG502155941 or 502155941. Listed at 15 retailers as of November 4, 2026, with a 262% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502155941
Dimensions10.10 × 5.36 × 3.21 mm
L/W Ratio1.88
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
10.10 mm5.36 mm1.01 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502155941
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,464 GBP|Low: £519 GBP|High: £2,494 GBP|Avg: £1,260 GBP|+0.1%
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 12£540 GBP
Retailer 3£587 GBP
Retailer 4£604 GBP
Retailer 14£627 GBP
Retailer 13£719 GBP
Retailer 10£759 GBP
Retailer 7£982 GBP
Retailer 16£1,016 GBP
Retailer 2£1,151 GBP
Retailer 11£1,544 GBP
Retailer 9£1,633 GBP
Retailer 15£1,762 GBP
Retailer 8£1,793 GBP
Retailer 5£1,953 GBP
Retailer 6£1,957 GBP
MOH London£2,464 GBP

25 data points across 16 retailers

15 retailers£540 GBP to £1,957 GBP

A
Cheapest Retailer
-
£540 GBP
B+
Retailer 2
-
£587 GBP
View
B+
Retailer 3
-
£604 GBP
View
Final sale: no returns
Retailer 4
-
£627 GBP
View
Price last confirmed 18 days ago
B+
Retailer 5
-
£627 GBP
View
B+
Retailer 6
-
£719 GBP
View
B+
Retailer 7
-
£759 GBP
View
B
Retailer 8
-
£1,016 GBP
View
B
Retailer 9
-
£1,151 GBP
View
B
Retailer 10
-
£1,544 GBP
View
B
Retailer 11
-
£1,633 GBP
View
B
Retailer 12
-
£1,762 GBP
View
B
Retailer 13
-
£1,953 GBP
View
B
Retailer 14
-
£1,957 GBP
View
Most Expensive
MOH London
LG502155941 · Oct 26
£2,464 GBP
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from £540 GBPSave up to £1,417 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 Marquise
£540 GBP