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Marquise|Lab Grown|IGI

1.51ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG826610306

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG826610306

Diamond specifications and retailer prices

From £170 GBP
As of November 4, 2026
Save £687 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £857 GBP at Brilliance · As of November 5, 2026
View at Brilliance

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826610306 or 826610306. Listed at 10 retailers as of November 4, 2026, with prices from £170 to £857, a £687 spread on the same certified stone. Brilliance lists it at £857. 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
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826610306
Dimensions12.19 × 6.01 × 3.65 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.19 mm6.01 mm1.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826610306
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 60.7%

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 4
Current: £857 GBP|Low: £212 GBP|High: £914 GBP|Avg: £567 GBP|-6.2%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9£212 GBP
Retailer 2£256 GBP
Retailer 8£358 GBP
Retailer 6£365 GBP
Retailer 3£389 GBP
Retailer 5£680 GBP
Retailer 10£722 GBP
Retailer 7£724 GBP
Retailer 4£841 GBP
Brilliance£857 GBP

15 data points across 10 retailers

10 retailers£170 GBP to £857 GBP

A
Cheapest Retailer
-
£170 GBP
Retailer 2
-
£210 GBP
View
Price last confirmed 42 days ago
A
Retailer 3
-
£256 GBP
View
A
Retailer 4
-
£358 GBP
View
A
Retailer 5
-
£365 GBP
View
A
Retailer 6
-
£389 GBP
View
B+
Retailer 7
-
£680 GBP
View
B+
Retailer 8
-
£724 GBP
View
B
Retailer 9
-
£841 GBP
View
Most Expensive
B
Brilliance
D44248588 · Nov 5
£857 GBP
$1,154 USD
View
9 more retailers have this diamond
Prices start from £170 GBPSave up to £687 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
£170 GBP