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Heart|Lab Grown|IGI

1.42ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846664923

Certificate IGI LG846664923

Diamond specifications and retailer prices

From £1,441 GBP
As of November 5, 2026
Save £73 GBP (5%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,514 GBP at With Clarity · As of November 5, 2026
View at With Clarity

About this 1.42ct lab-grown heart diamond

This 1.42ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846664923 or 846664923. Listed at 2 retailers as of November 5, 2026, with a relatively tight 5% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.42
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664923
Dimensions6.81 × 7.77 × 4.68 mm
L/W Ratio1.14
Top View
6.81 mm7.77 mm1.42 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664923
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 60.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £1,441 GBP|Low: £1,441 GBP|High: £1,514 GBP|Avg: £1,477 GBP
Retailer 1
With Clarity
November 5, 2026
Retailer 1£1,441 GBP
With Clarity£1,514 GBP

1 data point across 2 retailers

2 retailers£1,441 GBP to £1,514 GBP

B
Cheapest Retailer
-
£1,441 GBP
Most Expensive
B
With Clarity
846664923 · Nov 5
£1,514 GBP
$2,044 USD
View
1 more retailer has this diamond
Prices start from £1,441 GBPSave up to £73 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.

B
1.42ct Heart
£1,441 GBP