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Heart|Lab Grown|IGI

2.40ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG831604007

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604007

Diamond specifications and retailer prices

From £1,280 GBP
HK$13,400 HKD
As of October 30, 2026
Save £5,011 GBP (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,292 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.4ct lab-grown heart diamond

This 2.4ct lab-grown heart sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604007 or 831604007. Listed at 21 retailers as of October 30, 2026, with prices from £1,280 to £6,292, a £5,011 spread on the same certified stone. Brilliant Earth lists it at £6,292. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.40
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604007
Dimensions8.01 × 9.50 × 5.58 mm
L/W Ratio1.19
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
8.01 mm9.50 mm2.40 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604007
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
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: Oct 30
Current: £6,292 GBP|Low: £1,237 GBP|High: £6,292 GBP|Avg: £2,743 GBP|+0.1%
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
October 31, 2026
Retailer 11£1,280 GBP
Retailer 4£1,288 GBP
Retailer 5£1,494 GBP
Retailer 2£1,551 GBP
Retailer 7£1,620 GBP
Retailer 13£1,649 GBP
Retailer 6£2,013 GBP
Retailer 3£2,164 GBP
Retailer 16£2,240 GBP
Retailer 8£2,800 GBP
Retailer 12£3,050 GBP
Retailer 10£3,716 GBP
Retailer 14£3,855 GBP
Retailer 9£4,029 GBP
Retailer 15£4,290 GBP
Brilliant Earth£6,292 GBP

32 data points across 16 retailers

21 retailers£1,280 GBP to £6,292 GBP

A
Cheapest Retailer
-
£1,280 GBP
HK$13,400 HKD
A
Retailer 2
-
£1,288 GBP
$1,726 USD
View
A
Retailer 3
-
£1,442 GBP
$1,932 USD
View
Final sale: no returns
A
Retailer 4
-
£1,494 GBP
$2,002 USD
View
Retailer 5
-
£1,494 GBP
$2,002 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£1,551 GBP
View
B+
Retailer 7
-
£1,617 GBP
$2,167 USD
View
B+
Retailer 8
-
£1,620 GBP
$2,170 USD
View
B+
Retailer 9
-
£1,649 GBP
View
B+
Retailer 10
-
£2,013 GBP
$2,697 USD
View
B+
Retailer 11
-
£2,164 GBP
$2,900 USD
View
B+
Retailer 12
-
£2,240 GBP
$3,001 USD
View
B
Retailer 13
-
£2,800 GBP
$3,752 USD
View
B+
Retailer 14
-
£3,050 GBP
$4,087 USD
View
B
Retailer 15
-
£3,716 GBP
SGD 6,728 SGD
View
B
Retailer 16
-
£3,855 GBP
ZAR 83,442 ZAR
View
B
Retailer 17
-
£4,029 GBP
$5,398 USD
View
B
Retailer 18
-
£4,290 GBP
View
B
Retailer 19
-
£4,525 GBP
$6,062 USD
View
B
Retailer 20
-
£5,241 GBP
$7,022 USD
View
Most Expensive
B
Brilliant Earth
21604964A · Oct 30
£6,292 GBP
$8,430 USD
View
20 more retailers have this diamond
Prices start from £1,280 GBPSave up to £5,011 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
2.40ct Heart
£1,280 GBP