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Marquise|Lab Grown|IGI

1.55ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG816606719

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816606719

Diamond specifications and retailer prices

From £206 GBP
As of November 6, 2026
Save £967 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,173 GBP at Brilliant Earth · As of November 5, 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 very-good cut grade and certified by IGI LG816606719 or 816606719. Listed at 21 retailers as of November 5, 2026, with prices from £206 to £1,173, a £967 spread on the same certified stone. Brilliant Earth lists it at £1,173. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606719
Dimensions11.80 × 5.97 × 3.82 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.80 mm5.97 mm1.55 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606719
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.0%

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 6
Current: £1,173 GBP|Low: £206 GBP|High: £1,180 GBP|Avg: £617 GBP|-0.6%
Brilliant Earth
Retailer 2
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November 6, 2026
Retailer 5£206 GBP
Retailer 14£241 GBP
Retailer 8£256 GBP
Retailer 11£256 GBP
Retailer 4£271 GBP
Retailer 21£374 GBP
Retailer 9£423 GBP
Retailer 20£436 GBP
Retailer 17£441 GBP
Retailer 2£446 GBP
Retailer 3£492 GBP
Retailer 15£599 GBP
Retailer 16£695 GBP
Retailer 7£823 GBP
Retailer 12£860 GBP
Retailer 18£889 GBP
Retailer 6£956 GBP
Retailer 19£967 GBP
Retailer 13£1,023 GBP
Retailer 10£1,073 GBP
Brilliant Earth£1,173 GBP

40 data points across 21 retailers

21 retailers£206 GBP to £1,173 GBP

A
Cheapest Retailer
-
£206 GBP
A
Retailer 2
-
£241 GBP
View
Final sale: no returns
Retailer 3
-
£256 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
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£256 GBP
View
A
Retailer 5
-
£374 GBP
View
A
Retailer 6
-
£423 GBP
View
Retailer 7
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£436 GBP
View
Price last confirmed 11 days ago
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Retailer 8
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£441 GBP
View
A
Retailer 9
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£446 GBP
View
B+
Retailer 10
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£492 GBP
View
B+
Retailer 11
-
£599 GBP
View
B+
Retailer 12
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£695 GBP
View
B
Retailer 13
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£823 GBP
View
B
Retailer 14
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£838 GBP
View
B
Retailer 15
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£860 GBP
View
B
Retailer 16
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£889 GBP
View
B
Retailer 17
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£956 GBP
View
Retailer 18
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£967 GBP
View
Price last confirmed 8 days ago
B
Retailer 19
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£1,023 GBP
View
B
Retailer 20
-
£1,073 GBP
View
Most Expensive
B
Brilliant Earth
21835638A · Nov 5
£1,173 GBP
$1,570 USD
View
20 more retailers have this diamond
Prices start from £206 GBPSave up to £967 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