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Marquise|Lab Grown|IGI

1.56ct F VVS2 Marquise Lab Grown Diamond

ID • F/VVS2 • IGI LG845669979

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845669979

Diamond specifications and retailer prices

From £182 GBP
$244 USD
As of November 2, 2026
Save £1,220 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,402 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845669979 or 845669979. Listed at 21 retailers as of November 1, 2026, with prices from £182 to £1,402, a £1,220 spread on the same certified stone. Helzberg Diamonds lists it at £1,402. 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
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845669979
Dimensions12.16 × 6.06 × 3.76 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.16 mm6.06 mm1.56 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845669979
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: £1,402 GBP|Low: £182 GBP|High: £61,550 GBP|Avg: £15,034 GBP
Helzberg Diamonds
Retailer 2
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Retailer 21
November 2, 2026
Retailer 6£182 GBP
Retailer 17£209 GBP
Retailer 15£212 GBP
Retailer 18£226 GBP
Retailer 2£251 GBP
Retailer 4£381 GBP
Retailer 16£390 GBP
Retailer 3£414 GBP
Retailer 21£415 GBP
Retailer 13£429 GBP
Retailer 19£726 GBP
Retailer 20£729 GBP
Retailer 9£765 GBP
Retailer 5£861 GBP
Retailer 8£972 GBP
Retailer 7£995 GBP
Helzberg Diamonds£1,402 GBP
Retailer 14£19,360 GBP
Retailer 12£30,141 GBP
Retailer 11£30,204 GBP
Retailer 10£35,427 GBP

10 data points across 21 retailers

21 retailers£182 GBP to £1,402 GBP

A
Cheapest Retailer
-
£182 GBP
$244 USD
A
Retailer 2
-
£209 GBP
$281 USD
View
Final sale: no returns
A
Retailer 3
-
£212 GBP
$284 USD
View
A
Retailer 4
-
£226 GBP
$303 USD
View
A
Retailer 5
-
£251 GBP
View
A
Retailer 6
-
£381 GBP
$511 USD
View
A
Retailer 7
-
£390 GBP
ZAR 8,456 ZAR
View
A
Retailer 8
-
£414 GBP
$555 USD
View
A
Retailer 9
-
£415 GBP
$557 USD
View
A
Retailer 10
-
£429 GBP
View
B+
Retailer 11
-
£726 GBP
$974 USD
View
B+
Retailer 12
-
£729 GBP
$978 USD
View
B+
Retailer 13
-
£765 GBP
$1,026 USD
View
B+
Retailer 14
-
£861 GBP
$1,155 USD
View
B
Retailer 15
-
£972 GBP
$1,304 USD
View
B
Retailer 16
-
£995 GBP
$1,336 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKLMMPPNP · Nov 1
£1,402 GBP
$1,881 USD
View
16 more retailers have this diamond
Prices start from £182 GBPSave up to £1,220 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
£182 GBP