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Marquise|Lab Grown|IGI

1.01ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG781634700

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG781634700

Diamond specifications and retailer prices

From £126 GBP
As of November 2, 2026
Save £605 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £731 GBP at MOH London · As of November 2, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781634700 or 781634700. Listed at 17 retailers as of November 2, 2026, with prices from £126 to £731, a £605 spread on the same certified stone. MOH London lists it at £731. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781634700
Dimensions9.92 × 5.37 × 3.37 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.92 mm5.37 mm1.01 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG781634700
Side View
Table 61.0%Crown 35.3°Girdle: MED-STKPavilion 40.9°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: £731 GBP|Low: £123 GBP|High: £757 GBP|Avg: £340 GBP|-2.5%
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
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Retailer 16
November 3, 2026
Retailer 14£126 GBP
Retailer 13£140 GBP
Retailer 10£146 GBP
Retailer 3£157 GBP
Retailer 8£158 GBP
Retailer 11£270 GBP
Retailer 2£279 GBP
Retailer 5£280 GBP
Retailer 7£390 GBP
Retailer 4£392 GBP
Retailer 9£399 GBP
Retailer 6£428 GBP
Retailer 12£503 GBP
Retailer 16£520 GBP
Retailer 15£543 GBP
MOH London£731 GBP

37 data points across 16 retailers

17 retailers£126 GBP to £731 GBP

A
Cheapest Retailer
-
£126 GBP
A
Retailer 2
-
£140 GBP
View
Final sale: no returns
A
Retailer 3
-
£146 GBP
View
A
Retailer 4
-
£157 GBP
View
Retailer 5
-
£158 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£239 GBP
View
A
Retailer 7
-
£270 GBP
View
A
Retailer 8
-
£279 GBP
View
A
Retailer 9
-
£280 GBP
View
B+
Retailer 10
-
£390 GBP
View
B+
Retailer 11
-
£392 GBP
View
B+
Retailer 12
-
£399 GBP
View
B+
Retailer 13
-
£428 GBP
View
B+
Retailer 14
-
£503 GBP
View
B
Retailer 15
-
£520 GBP
View
B
Retailer 16
-
£543 GBP
View
Most Expensive
B
MOH London
LG781634700 · Nov 2
£731 GBP
View
16 more retailers have this diamond
Prices start from £126 GBPSave up to £605 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
£126 GBP