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Marquise|Lab Grown|IGI

1.55ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG837654815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837654815

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of November 2, 2026
Save £747 GBP (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £936 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837654815 or 837654815. Listed at 22 retailers as of November 2, 2026, with prices from £189 to £936, a £747 spread on the same certified stone. MOH London lists it at £936. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837654815
Dimensions11.42 × 6.24 × 3.88 mm
L/W Ratio1.83
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.42 mm6.24 mm1.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837654815
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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: £936 GBP|Low: £189 GBP|High: £958 GBP|Avg: £487 GBP|-1.6%
MOH London
Retailer 2
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Retailer 20
November 3, 2026
Retailer 9£189 GBP
Retailer 10£211 GBP
Retailer 5£218 GBP
Retailer 4£233 GBP
Retailer 20£233 GBP
Retailer 14£273 GBP
Retailer 18£354 GBP
Retailer 17£390 GBP
Retailer 15£403 GBP
Retailer 6£407 GBP
Retailer 2£445 GBP
Retailer 16£487 GBP
Retailer 19£544 GBP
Retailer 13£601 GBP
Retailer 7£727 GBP
Retailer 3£750 GBP
Retailer 11£754 GBP
Retailer 8£789 GBP
Retailer 12£919 GBP
MOH London£936 GBP

27 data points across 20 retailers

22 retailers£189 GBP to £936 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
A
Retailer 2
-
£211 GBP
$283 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$293 USD
View
A
Retailer 4
-
£233 GBP
$313 USD
View
Retailer 5
-
£233 GBP
$313 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£273 GBP
View
A
Retailer 7
-
£354 GBP
$475 USD
View
A
Retailer 8
-
£390 GBP
$524 USD
View
A
Retailer 9
-
£403 GBP
ZAR 8,739 ZAR
View
A
Retailer 10
-
£407 GBP
$546 USD
View
A
Retailer 11
-
£445 GBP
View
A
Retailer 12
-
£487 GBP
$653 USD
View
A
Retailer 13
-
£544 GBP
A$1,123 AUD
View
A
Retailer 14
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£601 GBP
$806 USD
View
Retailer 15
-
£714 GBP
A$1,474 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
£727 GBP
$976 USD
View
Retailer 17
-
£745 GBP
$1,000 USD
View
Price last confirmed 29 days ago
B+
Retailer 18
-
£750 GBP
$1,007 USD
View
B+
Retailer 19
-
£754 GBP
SGD 1,367 SGD
View
B+
Retailer 20
-
£789 GBP
$1,059 USD
View
B
Retailer 21
-
£919 GBP
$1,233 USD
View
Most Expensive
B+
MOH London
LG837654815 · Nov 2
£936 GBP
View
21 more retailers have this diamond
Prices start from £189 GBPSave up to £747 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
1.55ct Marquise
£189 GBP