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Heart|Lab Grown|IGI

1.56ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG849673042

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG849673042

Diamond specifications and retailer prices

From £360 GBP
As of November 4, 2026
Save £490 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £849 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.56ct lab-grown heart diamond

This 1.56ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG849673042 or 849673042. Listed at 5 retailers as of November 4, 2026, with prices from £360 to £849, a £490 spread on the same certified stone. MOH London lists it at £849. 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
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849673042
Dimensions7.26 × 8.01 × 4.59 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.26 mm8.01 mm1.56 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849673042
Side View
Table 62.0%Crown 33.1°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £849 GBP|Low: £360 GBP|High: £851 GBP|Avg: £494 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 4£360 GBP
Retailer 3£379 GBP
Retailer 2£396 GBP
Retailer 5£721 GBP
MOH London£849 GBP

12 data points across 5 retailers

5 retailers£360 GBP to £849 GBP

A
Cheapest Retailer
-
£360 GBP
A
Retailer 2
-
£379 GBP
View
B+
Retailer 3
-
£396 GBP
View
B
Retailer 4
-
£721 GBP
View
Most Expensive
B
MOH London
LG849673042 · Nov 5
£849 GBP
View
4 more retailers have this diamond
Prices start from £360 GBPSave up to £490 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 Heart
£360 GBP