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Marquise|Lab Grown|IGI

1.55ct F VVS1 Marquise Lab Grown Diamond

ID • F/VVS1 • IGI LG811644884

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811644884

Diamond specifications and retailer prices

From £206 GBP
As of November 2, 2026
Save £867 GBP (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,801 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811644884 or 811644884. Listed at 25 retailers as of November 2, 2026, with a 420% 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

1.55
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811644884
Dimensions12.23 × 5.85 × 3.79 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.23 mm5.85 mm1.55 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811644884
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 64.8%

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: £445 GBP|Low: £198 GBP|High: £1,073 GBP|Avg: £602 GBP|+0.2%
Retailer 1
Retailer 2
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Retailer 12
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Retailer 18
November 4, 2026
Retailer 6£206 GBP
Retailer 4£230 GBP
Retailer 9£256 GBP
Retailer 11£270 GBP
Retailer 16£344 GBP
Retailer 2£374 GBP
Retailer 18£403 GBP
Retailer 13£441 GBP
Retailer 1£445 GBP
Retailer 12£599 GBP
Retailer 15£614 GBP
Retailer 10£822 GBP
Retailer 8£889 GBP
Retailer 17£962 GBP
Retailer 3£983 GBP
Retailer 7£1,002 GBP
Retailer 14£1,024 GBP
Retailer 5£1,073 GBP

37 data points across 18 retailers

25 retailers£206 GBP to £1,073 GBP

A
Cheapest Retailer
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£206 GBP
A
Retailer 2
-
£239 GBP
View
Retailer 3
-
£256 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
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£256 GBP
View
A
Retailer 5
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£270 GBP
View
B+
Retailer 6
-
£344 GBP
View
A
Retailer 7
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£374 GBP
View
Retailer 8
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£403 GBP
View
Price last confirmed 9 days ago
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Retailer 9
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£441 GBP
View
A
Retailer 10
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£445 GBP
View
A
Retailer 11
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£492 GBP
View
A
Retailer 12
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£508 GBP
View
B+
Retailer 13
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£539 GBP
View
B+
Retailer 14
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£599 GBP
View
B+
Retailer 15
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£614 GBP
View
B+
Retailer 16
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£797 GBP
View
B+
Retailer 17
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£822 GBP
View
B+
Retailer 18
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£860 GBP
View
B
Retailer 19
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£889 GBP
View
Retailer 20
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£962 GBP
View
Price last confirmed 8 days ago
B
Retailer 21
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£983 GBP
View
B
Retailer 22
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£1,002 GBP
View
B
Retailer 23
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£1,024 GBP
View
B
Retailer 24
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£1,073 GBP
View
Most Expensive
Brilliant Earth
20607726A · Sep 28
£1,801 GBP
$2,410 USD
View
Price last confirmed 39 days ago
24 more retailers have this diamond
Prices start from £206 GBPSave up to £867 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
£206 GBP