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Marquise|Lab Grown|IGI

1.50ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG840646176

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840646176

Diamond specifications and retailer prices

From £408 GBP
€521 EUR
As of October 27, 2026
Save £643 GBP (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,051 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.5ct lab-grown marquise diamond

This 1.5ct 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 LG840646176 or 840646176. Listed at 13 retailers as of October 26, 2026, with prices from £408 to £1,051, a £643 spread on the same certified stone. Brilliant Earth lists it at £1,051. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840646176
Dimensions11.49 × 5.86 × 3.77 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm5.86 mm1.50 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840646176
Side View
Table 57.0%Crown 34.1°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

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: Oct 27
Current: £1,051 GBP|Low: £260 GBP|High: £1,118 GBP|Avg: £651 GBP|-6.0%
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
October 25, 2026
Retailer 9£260 GBP
Retailer 15£305 GBP
Retailer 4£306 GBP
Retailer 8£382 GBP
Retailer 2£408 GBP
Retailer 10£409 GBP
Retailer 3£565 GBP
Retailer 7£752 GBP
Retailer 13£754 GBP
Retailer 6£762 GBP
Retailer 11£905 GBP
Retailer 12£911 GBP
Retailer 14£913 GBP
Retailer 5£965 GBP
Brilliant Earth£1,051 GBP

18 data points across 15 retailers

13 retailers£408 GBP to £1,051 GBP

Retailer 1
-
£260 GBP
Price last confirmed 11 days ago
Retailer 2
-
£305 GBP
HK$3,200 HKD
View
Price last confirmed 9 days ago
Retailer 3
-
£306 GBP
$410 USD
View
Price last confirmed 12 days ago
Retailer 4
-
£382 GBP
$513 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£408 GBP
€521 EUR
View
Retailer 6
-
£409 GBP
View
Price last confirmed 11 days ago
Retailer 7
-
£565 GBP
$758 USD
View
Price last confirmed 13 days ago
Retailer 8
-
£752 GBP
$1,010 USD
View
Price last confirmed 27 days ago
Retailer 9
-
£754 GBP
$1,012 USD
View
Price last confirmed 12 days ago
Retailer 10
-
£762 GBP
A$1,573 AUD
View
Price last confirmed 25 days ago
Retailer 11
-
£905 GBP
$1,215 USD
View
Price last confirmed 11 days ago
Retailer 12
-
£913 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21804612A · Oct 26
£1,051 GBP
$1,410 USD
View
12 more retailers have this diamond
Prices start from £408 GBPSave up to £643 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
1.50ct Marquise
£408 GBP