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Marquise|Lab Grown|IGI

1.56ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG838620554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838620554

Diamond specifications and retailer prices

From £192 GBP
$257 USD
As of November 1, 2026
Save £219 GBP (53%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £715 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG838620554 or 838620554. Listed at 3 retailers as of November 1, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838620554
Dimensions11.76 × 6.02 × 3.87 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.76 mm6.02 mm1.56 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838620554
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°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: £715 GBP|Low: £192 GBP|High: £723 GBP|Avg: £495 GBP|-1.0%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£192 GBP
Retailer 2£410 GBP
Rare Carat£715 GBP

35 data points across 3 retailers

3 retailers£192 GBP to £410 GBP

A
Cheapest Retailer
-
£192 GBP
$257 USD
Final sale: no returns
A
Retailer 2
-
£410 GBP
View
Most Expensive
Rare Carat
838620554 · Oct 18
£715 GBP
$960 USD
View
Price last confirmed 15 days ago
2 more retailers have this diamond
Prices start from £192 GBPSave up to £219 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