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Marquise|Lab Grown|IGI

1.56ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG841676254

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841676254

Diamond specifications and retailer prices

From £192 GBP
$257 USD
As of November 1, 2026
Save £890 GBP (82%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,082 GBP at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.56ct lab-grown marquise diamond

This 1.56ct 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 LG841676254 or 841676254. Listed at 4 retailers as of November 1, 2026, with prices from £192 to £1,082, a £890 spread on the same certified stone. Brilliant Earth lists it at £1,082. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841676254
Dimensions11.55 × 6.07 × 3.90 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.55 mm6.07 mm1.56 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841676254
Side View
Table 62.0%Crown 37.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,082 GBP|Low: £192 GBP|High: £1,351 GBP|Avg: £687 GBP|-19.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4£192 GBP
Retailer 2£411 GBP
Retailer 3£716 GBP
Brilliant Earth£1,082 GBP

29 data points across 4 retailers

4 retailers£192 GBP to £1,082 GBP

A
Cheapest Retailer
-
£192 GBP
$257 USD
Final sale: no returns
A
Retailer 2
-
£411 GBP
View
B+
Retailer 3
-
£716 GBP
$960 USD
View
Most Expensive
B
Brilliant Earth
21704295A · Nov 1
£1,082 GBP
$1,450 USD
View
3 more retailers have this diamond
Prices start from £192 GBPSave up to £890 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
1.56ct Marquise
£192 GBP