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Marquise|Lab Grown|IGI

1.01ct I VS1 Marquise Lab Grown Diamond

ID • I/VS1 • IGI LG514252456

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG514252456

Diamond specifications and retailer prices

From £437 GBP
As of November 4, 2026
Save £2,914 GBP (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,351 GBP at MOH London · As of November 5, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG514252456 or 514252456. Listed at 13 retailers as of November 4, 2026, with prices from £437 to £3,351, a £2,914 spread on the same certified stone. MOH London lists it at £3,351. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.6°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514252456
Dimensions10.21 × 5.36 × 3.06 mm
L/W Ratio1.90
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
10.21 mm5.36 mm1.01 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG514252456
Side View
Table 57.0%Crown 40.6°Girdle: MED-STKPavilion 33.1°Culet: NoneDepth 57.1%

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: £3,351 GBP|Low: £437 GBP|High: £3,405 GBP|Avg: £1,698 GBP|-0.3%
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 5, 2026
Retailer 7£437 GBP
Retailer 8£901 GBP
Retailer 12£981 GBP
Retailer 13£1,009 GBP
Retailer 9£1,046 GBP
Retailer 4£1,174 GBP
Retailer 5£1,462 GBP
Retailer 10£1,659 GBP
Retailer 2£1,924 GBP
Retailer 11£1,960 GBP
Retailer 3£2,004 GBP
Retailer 14£2,528 GBP
Retailer 6£2,994 GBP
MOH London£3,351 GBP

23 data points across 14 retailers

13 retailers£437 GBP to £3,351 GBP

A
Cheapest Retailer
-
£437 GBP
B
Retailer 2
-
£901 GBP
View
B
Retailer 3
-
£981 GBP
View
B
Retailer 4
-
£1,009 GBP
View
Final sale: no returns
Retailer 5
-
£1,046 GBP
View
Price last confirmed 24 days ago
B
Retailer 6
-
£1,046 GBP
View
B
Retailer 7
-
£1,174 GBP
View
B
Retailer 8
-
£1,659 GBP
View
B
Retailer 9
-
£1,924 GBP
View
B
Retailer 10
-
£1,960 GBP
View
B
Retailer 11
-
£2,004 GBP
View
B
Retailer 12
-
£2,528 GBP
View
Most Expensive
B
MOH London
LG514252456 · Nov 5
£3,351 GBP
View
12 more retailers have this diamond
Prices start from £437 GBPSave up to £2,914 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
£437 GBP