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Marquise|Lab Grown|IGI

1.56ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG818648797

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818648797

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of November 2, 2026
Save £783 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £972 GBP at With Clarity · As of November 1, 2026
View at With Clarity

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 top-tier cut grade and certified by IGI LG818648797 or 818648797. Listed at 21 retailers as of November 1, 2026, with prices from £189 to £972, a £783 spread on the same certified stone. With Clarity lists it at £972. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818648797
Dimensions12.75 × 6.09 × 3.59 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm6.09 mm1.56 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818648797
Side View
Table 65.0%Crown 33.8°Girdle: THN-STKPavilion 39.6°Culet: NoneDepth 58.9%

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 2
Current: £604 GBP|Low: £182 GBP|High: £976 GBP|Avg: £549 GBP|+10.0%
Retailer 1
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Retailer 20
With Clarity
November 2, 2026
Retailer 6£189 GBP
Retailer 7£211 GBP
Retailer 3£218 GBP
Retailer 2£234 GBP
Retailer 19£234 GBP
Retailer 17£354 GBP
Retailer 16£390 GBP
Retailer 14£404 GBP
Retailer 4£411 GBP
Retailer 12£442 GBP
Retailer 18£545 GBP
Retailer 1£604 GBP
Retailer 11£719 GBP
Retailer 13£745 GBP
Retailer 20£751 GBP
Retailer 8£754 GBP
Retailer 5£790 GBP
Retailer 9£920 GBP
Retailer 10£931 GBP
Retailer 15£937 GBP
With Clarity£972 GBP

30 data points across 21 retailers

21 retailers£189 GBP to £972 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
A
Retailer 2
-
£211 GBP
$283 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$293 USD
View
Retailer 4
-
£234 GBP
$314 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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£234 GBP
$314 USD
View
A
Retailer 6
-
£354 GBP
$475 USD
View
A
Retailer 7
-
£390 GBP
$524 USD
View
A
Retailer 8
-
£404 GBP
ZAR 8,748 ZAR
View
A
Retailer 9
-
£411 GBP
$552 USD
View
A
Retailer 10
-
£442 GBP
View
A
Retailer 11
-
£545 GBP
A$1,125 AUD
View
B+
Retailer 12
-
£604 GBP
$811 USD
View
Retailer 13
-
£719 GBP
A$1,485 AUD
View
Price last confirmed 24 days ago
Retailer 14
-
£745 GBP
$1,000 USD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
£751 GBP
$1,008 USD
View
B+
Retailer 16
-
£754 GBP
SGD 1,367 SGD
View
B+
Retailer 17
-
£790 GBP
$1,060 USD
View
B+
Retailer 18
-
£920 GBP
$1,234 USD
View
B
Retailer 19
-
£931 GBP
$1,250 USD
View
B+
Retailer 20
-
£937 GBP
View
Most Expensive
B
With Clarity
818648797 · Nov 1
£972 GBP
$1,304 USD
View
20 more retailers have this diamond
Prices start from £189 GBPSave up to £783 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
£189 GBP