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Round|Lab Grown|IGI

1.56ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG662413495

Shape and cutting style on the report: Round brilliant

Certificate IGI LG662413495

Diamond specifications and retailer prices

From £336 GBP
$451 USD
As of November 1, 2026
Save £531 GBP (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £867 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG662413495 or 662413495. Listed at 8 retailers as of October 29, 2026, with prices from £336 to £867, a £531 spread on the same certified stone. MOH London lists it at £867. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662413495
Dimensions7.38 × 7.40 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.40 mm1.56 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662413495
Side View
Table 57.0%Crown 35.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.1%

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 1
Current: £867 GBP|Low: £336 GBP|High: £867 GBP|Avg: £548 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6£336 GBP
Retailer 3£372 GBP
Retailer 2£402 GBP
Retailer 4£502 GBP
Retailer 5£513 GBP
Retailer 7£629 GBP
Retailer 8£794 GBP
MOH London£867 GBP

18 data points across 8 retailers

8 retailers£336 GBP to £867 GBP

B+
Cheapest Retailer
-
£336 GBP
$451 USD
A
Retailer 2
-
£372 GBP
ZAR 8,055 ZAR
View
A
Retailer 3
-
£402 GBP
View
A
Retailer 4
-
£502 GBP
A$1,036 AUD
View
A
Retailer 5
-
£513 GBP
$689 USD
View
B+
Retailer 6
-
£629 GBP
$844 USD
View
B+
Retailer 7
-
£794 GBP
$1,065 USD
View
Most Expensive
B+
MOH London
LG662413495 · Oct 29
£867 GBP
View
7 more retailers have this diamond
Prices start from £336 GBPSave up to £531 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 Round
£336 GBP