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Heart|Lab Grown|IGI

1.54ct F VS1 Heart Lab Grown Diamond

ID • F/VS1 • IGI LG826677718

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG826677718

Diamond specifications and retailer prices

From £180 GBP
As of November 4, 2026
Save £846 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,025 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826677718 or 826677718. Listed at 17 retailers as of November 4, 2026, with prices from £180 to £1,025, a £846 spread on the same certified stone. Brilliant Earth lists it at £1,025. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826677718
Dimensions8.03 × 7.12 × 4.72 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.03 mm7.12 mm1.54 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826677718
Side View
Table 63.0%Crown 34.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 58.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,025 GBP|Low: £172 GBP|High: £1,114 GBP|Avg: £588 GBP|-8.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 15£180 GBP
Retailer 3£223 GBP
Retailer 16£223 GBP
Retailer 13£301 GBP
Retailer 11£384 GBP
Retailer 4£399 GBP
Retailer 2£418 GBP
Retailer 12£519 GBP
Retailer 8£716 GBP
Retailer 14£719 GBP
Retailer 5£755 GBP
Retailer 9£890 GBP
Retailer 6£903 GBP
Retailer 10£906 GBP
Retailer 7£912 GBP
Brilliant Earth£1,025 GBP

41 data points across 16 retailers

17 retailers£180 GBP to £1,025 GBP

A
Cheapest Retailer
-
£180 GBP
A
Retailer 2
-
£223 GBP
View
Retailer 3
-
£223 GBP
View
Price last confirmed 12 days ago
Retailer 4
-
£227 GBP
View
Price last confirmed 40 days ago
B+
Retailer 5
-
£301 GBP
View
A
Retailer 6
-
£384 GBP
View
A
Retailer 7
-
£399 GBP
View
A
Retailer 8
-
£418 GBP
View
Retailer 9
-
£519 GBP
View
Price last confirmed 10 days ago
B
Retailer 10
-
£716 GBP
View
B
Retailer 11
-
£719 GBP
View
B
Retailer 12
-
£755 GBP
View
B
Retailer 13
-
£890 GBP
View
Retailer 14
-
£903 GBP
View
Price last confirmed 29 days ago
B
Retailer 15
-
£906 GBP
View
B
Retailer 16
-
£912 GBP
View
Most Expensive
B
Brilliant Earth
21053347A · Nov 4
£1,025 GBP
$1,380 USD
View
16 more retailers have this diamond
Prices start from £180 GBPSave up to £846 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
1.54ct Heart
£180 GBP