CaratHunter
Plans
Heart|Lab Grown|IGI

1.54ct F VS1 Heart Lab Grown Diamond

ID • F/VS1 • IGI LG843639369

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843639369

Diamond specifications and retailer prices

From £275 GBP
As of November 4, 2026
Save £758 GBP (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,033 GBP at Brilliant Earth · As of November 5, 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 LG843639369 or 843639369. Listed at 8 retailers as of November 4, 2026, with prices from £275 to £1,033, a £758 spread on the same certified stone. Brilliant Earth lists it at £1,033. 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 angle37.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843639369
Dimensions8.02 × 6.81 × 4.89 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm6.81 mm1.54 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843639369
Side View
Table 61.0%Crown 37.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,033 GBP|Low: £271 GBP|High: £1,397 GBP|Avg: £644 GBP|-26.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7£275 GBP
Retailer 3£374 GBP
Retailer 2£393 GBP
Retailer 6£693 GBP
Retailer 8£706 GBP
Retailer 5£813 GBP
Retailer 4£822 GBP
Brilliant Earth£1,033 GBP

22 data points across 8 retailers

8 retailers£275 GBP to £1,033 GBP

B+
Cheapest Retailer
-
£275 GBP
A
Retailer 2
-
£374 GBP
View
A
Retailer 3
-
£393 GBP
View
B+
Retailer 4
-
£693 GBP
View
Retailer 5
-
£706 GBP
View
Price last confirmed 8 days ago
B
Retailer 6
-
£813 GBP
View
B
Retailer 7
-
£822 GBP
View
Most Expensive
B
Brilliant Earth
22200431A · Nov 5
£1,033 GBP
$1,390 USD
View
7 more retailers have this diamond
Prices start from £275 GBPSave up to £758 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
£275 GBP