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Marquise|Lab Grown|IGI

1.56ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG825655363

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825655363

Diamond specifications and retailer prices

From £211 GBP
$283 USD
As of November 1, 2026
Save £726 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £937 GBP at MOH London · As of November 1, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG825655363 or 825655363. Listed at 16 retailers as of November 1, 2026, with prices from £211 to £937, a £726 spread on the same certified stone. MOH London lists it at £937. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.56
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655363
Dimensions12.31 × 5.95 × 3.70 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.31 mm5.95 mm1.56 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655363
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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 1
Current: £937 GBP|Low: £211 GBP|High: £959 GBP|Avg: £494 GBP|-2.3%
MOH London
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
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Retailer 16
November 2, 2026
Retailer 6£211 GBP
Retailer 3£234 GBP
Retailer 15£234 GBP
Retailer 2£273 GBP
Retailer 9£314 GBP
Retailer 8£354 GBP
Retailer 12£404 GBP
Retailer 4£411 GBP
Retailer 11£442 GBP
Retailer 14£545 GBP
Retailer 13£709 GBP
Retailer 7£718 GBP
Retailer 16£751 GBP
Retailer 10£754 GBP
Retailer 5£790 GBP
MOH London£937 GBP

14 data points across 16 retailers

16 retailers£211 GBP to £937 GBP

A
Cheapest Retailer
-
£211 GBP
$283 USD
Final sale: no returns
Retailer 2
-
£234 GBP
$314 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£234 GBP
$314 USD
View
A
Retailer 4
-
£273 GBP
View
B+
Retailer 5
-
£314 GBP
$422 USD
View
A
Retailer 6
-
£354 GBP
$475 USD
View
A
Retailer 7
-
£404 GBP
ZAR 8,748 ZAR
View
A
Retailer 8
-
£411 GBP
$552 USD
View
A
Retailer 9
-
£442 GBP
View
B+
Retailer 10
-
£545 GBP
A$1,125 AUD
View
B+
Retailer 11
-
£709 GBP
A$1,463 AUD
View
B+
Retailer 12
-
£718 GBP
$963 USD
View
B+
Retailer 13
-
£751 GBP
$1,008 USD
View
B
Retailer 14
-
£754 GBP
SGD 1,367 SGD
View
B
Retailer 15
-
£790 GBP
$1,060 USD
View
Most Expensive
B
MOH London
LG825655363 · Nov 1
£937 GBP
View
15 more retailers have this diamond
Prices start from £211 GBPSave up to £726 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
£211 GBP