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Heart|Lab Grown|IGI

1.50ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG831621572

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831621572

Diamond specifications and retailer prices

From £318 GBP
As of November 6, 2026
Save £539 GBP (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £857 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831621572 or 831621572. Listed at 5 retailers as of November 2, 2026, with prices from £318 to £857, a £539 spread on the same certified stone. MOH London lists it at £857. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831621572
Dimensions7.86 × 6.85 × 4.78 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.86 mm6.85 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831621572
Side View
Table 62.0%Crown 38.1°Girdle: THN-STKPavilion 39.6°Culet: NoneDepth 60.8%

Caratlytics Score

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

Last verified: Nov 6
Current: £857 GBP|Low: £318 GBP|High: £867 GBP|Avg: £456 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 4£318 GBP
Retailer 2£332 GBP
Retailer 5£341 GBP
Retailer 3£431 GBP
MOH London£857 GBP

26 data points across 5 retailers

5 retailers£318 GBP to £857 GBP

B+
Cheapest Retailer
-
£318 GBP
A
Retailer 2
-
£332 GBP
View
A
Retailer 3
-
£341 GBP
View
B+
Retailer 4
-
£431 GBP
View
Most Expensive
B
MOH London
LG831621572 · Nov 2
£857 GBP
View
4 more retailers have this diamond
Prices start from £318 GBPSave up to £539 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
1.50ct Heart
£318 GBP