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Heart|Lab Grown|IGI

1.48ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG840629991

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840629991

Diamond specifications and retailer prices

From £302 GBP
As of November 4, 2026
Save £2,009 GBP (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,311 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.48ct lab-grown heart diamond

This 1.48ct 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 very-good cut grade and certified by IGI LG840629991 or 840629991. Listed at 19 retailers as of November 4, 2026, with prices from £302 to £2,311, a £2,009 spread on the same certified stone. Brilliant Earth lists it at £2,311. 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

1.48
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629991
Dimensions6.97 × 7.73 × 4.74 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.97 mm7.73 mm1.48 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629991
Side View
Table 54.0%Crown 34.1°Girdle: STK-VTKPavilion 40.1°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,311 GBP|Low: £302 GBP|High: £3,267 GBP|Avg: £863 GBP|-29.3%
Brilliant Earth
Retailer 2
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Retailer 19
November 5, 2026
Retailer 4£302 GBP
Retailer 16£339 GBP
Retailer 10£364 GBP
Retailer 9£375 GBP
Retailer 12£385 GBP
Retailer 19£485 GBP
Retailer 3£553 GBP
Retailer 18£587 GBP
Retailer 5£594 GBP
Retailer 2£610 GBP
Retailer 15£646 GBP
Retailer 7£855 GBP
Retailer 13£912 GBP
Retailer 17£1,205 GBP
Retailer 8£1,231 GBP
Retailer 11£1,353 GBP
Retailer 14£1,464 GBP
Retailer 6£1,578 GBP
Brilliant Earth£2,311 GBP

8 data points across 19 retailers

19 retailers£302 GBP to £2,311 GBP

A
Cheapest Retailer
-
£302 GBP
A
Retailer 2
-
£339 GBP
View
A
Retailer 3
-
£364 GBP
View
Final sale: no returns
A
Retailer 4
-
£375 GBP
View
A
Retailer 5
-
£385 GBP
View
A
Retailer 6
-
£485 GBP
View
A
Retailer 7
-
£553 GBP
View
A
Retailer 8
-
£587 GBP
View
A
Retailer 9
-
£594 GBP
View
A
Retailer 10
-
£610 GBP
View
B+
Retailer 11
-
£646 GBP
View
B+
Retailer 12
-
£855 GBP
View
B+
Retailer 13
-
£912 GBP
View
B
Retailer 14
-
£1,205 GBP
View
B
Retailer 15
-
£1,231 GBP
View
B
Retailer 16
-
£1,353 GBP
View
B
Retailer 17
-
£1,464 GBP
View
B
Retailer 18
-
£1,578 GBP
View
Most Expensive
B
Brilliant Earth
22348900A · Nov 4
£2,311 GBP
$3,120 USD
View
18 more retailers have this diamond
Prices start from £302 GBPSave up to £2,009 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
1.48ct Heart
£302 GBP