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Marquise|Lab Grown|IGI

1.51ct F VVS1 Marquise Lab Grown Diamond

ID • F/VVS1 • IGI LG818675141

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818675141

Diamond specifications and retailer prices

From £198 GBP
As of November 6, 2026
Save £930 GBP (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,128 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.51ct lab-grown marquise diamond

This 1.51ct 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 LG818675141 or 818675141. Listed at 22 retailers as of November 6, 2026, with prices from £198 to £1,128, a £930 spread on the same certified stone. Brilliant Earth lists it at £1,128. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818675141
Dimensions11.50 × 6.14 × 3.70 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm6.14 mm1.51 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818675141
Side View
Table 63.0%Crown 33.8°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 60.3%

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: £1,128 GBP|Low: £190 GBP|High: £1,143 GBP|Avg: £634 GBP|-0.7%
Brilliant Earth
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
Retailer 15
November 6, 2026
Retailer 4£198 GBP
Retailer 6£246 GBP
Retailer 15£366 GBP
Retailer 2£397 GBP
Retailer 7£408 GBP
Retailer 13£423 GBP
Retailer 8£465 GBP
Retailer 11£575 GBP
Retailer 12£632 GBP
Retailer 14£882 GBP
Retailer 10£900 GBP
Retailer 3£935 GBP
Retailer 5£956 GBP
Retailer 9£981 GBP
Brilliant Earth£1,128 GBP

40 data points across 15 retailers

22 retailers£198 GBP to £1,128 GBP

A
Cheapest Retailer
-
£198 GBP
A
Retailer 2
-
£229 GBP
View
A
Retailer 3
-
£246 GBP
View
Retailer 4
-
£246 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
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£366 GBP
View
A
Retailer 6
-
£397 GBP
View
A
Retailer 7
-
£408 GBP
View
A
Retailer 8
-
£423 GBP
View
A
Retailer 9
-
£465 GBP
View
A
Retailer 10
-
£468 GBP
View
B+
Retailer 11
-
£575 GBP
View
B+
Retailer 12
-
£632 GBP
View
B+
Retailer 13
-
£762 GBP
View
B+
Retailer 14
-
£790 GBP
View
B+
Retailer 15
-
£790 GBP
View
B
Retailer 16
-
£827 GBP
View
B+
Retailer 17
-
£882 GBP
View
B
Retailer 18
-
£900 GBP
View
Retailer 19
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£935 GBP
View
Price last confirmed 8 days ago
B
Retailer 20
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£956 GBP
View
B
Retailer 21
-
£981 GBP
View
Most Expensive
B
Brilliant Earth
21006377A · Nov 6
£1,128 GBP
$1,510 USD
View
21 more retailers have this diamond
Prices start from £198 GBPSave up to £930 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
1.51ct Marquise
£198 GBP