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Heart|Lab Grown|IGI

1.24ct F IF Heart Lab Grown Diamond

VG • F/IF • IGI LG844659507

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844659507

Diamond specifications and retailer prices

From £261 GBP
$350 USD
As of November 1, 2026
Save £1,334 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,595 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.24ct lab-grown heart diamond

This 1.24ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG844659507 or 844659507. Listed at 15 retailers as of November 1, 2026, with prices from £261 to £1,595, a £1,334 spread on the same certified stone. Brilliant Earth lists it at £1,595. 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

1.24
Carat
F
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844659507
Dimensions6.41 × 7.40 × 4.54 mm
L/W Ratio1.15
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
6.41 mm7.40 mm1.24 ctF / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844659507
Side View
Table 62.0%Crown 35.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.4%

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 1
Current: £295 GBP|Low: £261 GBP|High: £1,135 GBP|Avg: £660 GBP|-0.6%
Retailer 1
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
November 2, 2026
Retailer 9£261 GBP
Retailer 1£295 GBP
Retailer 14£308 GBP
Retailer 10£395 GBP
Retailer 13£455 GBP
Retailer 8£481 GBP
Retailer 7£495 GBP
Retailer 12£642 GBP
Retailer 6£659 GBP
Retailer 4£842 GBP
Retailer 11£857 GBP
Retailer 3£932 GBP
Retailer 5£1,089 GBP
Retailer 2£1,132 GBP

13 data points across 14 retailers

15 retailers£261 GBP to £1,595 GBP

A
Cheapest Retailer
-
£261 GBP
$350 USD
A
Retailer 2
-
£295 GBP
View
A
Retailer 3
-
£308 GBP
$413 USD
View
Final sale: no returns
A
Retailer 4
-
£395 GBP
$530 USD
View
A
Retailer 5
-
£455 GBP
$611 USD
View
A
Retailer 6
-
£481 GBP
ZAR 10,427 ZAR
View
A
Retailer 7
-
£495 GBP
View
B+
Retailer 8
-
£642 GBP
$862 USD
View
B+
Retailer 9
-
£659 GBP
A$1,361 AUD
View
B+
Retailer 10
-
£842 GBP
A$1,738 AUD
View
B+
Retailer 11
-
£857 GBP
$1,150 USD
View
B+
Retailer 12
-
£932 GBP
$1,251 USD
View
B
Retailer 13
-
£1,089 GBP
View
B
Retailer 14
-
£1,132 GBP
$1,519 USD
View
Most Expensive
B
Brilliant Earth
22340657A · Nov 2
£1,595 GBP
$2,140 USD
View
14 more retailers have this diamond
Prices start from £261 GBPSave up to £1,334 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
1.24ct Heart
£261 GBP