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Heart|Lab Grown|IGI

3.10ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG615341592

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG615341592

Diamond specifications and retailer prices

From £1,122 GBP
As of November 3, 2026
Save £6,096 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £7,218 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.1ct lab-grown heart diamond

This 3.1ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG615341592 or 615341592. Listed at 24 retailers as of November 3, 2026, with prices from £1,122 to £7,218, a £6,096 spread on the same certified stone. Brilliant Earth lists it at £7,218. 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

3.10
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615341592
Dimensions9.44 × 9.86 × 5.81 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
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
9.44 mm9.86 mm3.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615341592
Side View
Table 59.0%Crown 36.3°Girdle: MED-THKPavilion 38.9°Culet: NoneDepth 58.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £7,218 GBP|Low: £1,122 GBP|High: £9,381 GBP|Avg: £2,925 GBP|-23.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 4, 2026
Retailer 13£1,122 GBP
Retailer 14£1,290 GBP
Retailer 8£1,388 GBP
Retailer 10£1,640 GBP
Retailer 7£1,749 GBP
Retailer 2£1,854 GBP
Retailer 15£1,957 GBP
Retailer 3£2,292 GBP
Retailer 12£2,626 GBP
Retailer 9£2,703 GBP
Retailer 5£3,013 GBP
Retailer 4£3,200 GBP
Retailer 16£3,614 GBP
Retailer 11£3,737 GBP
Retailer 6£4,086 GBP
Brilliant Earth£7,218 GBP

33 data points across 16 retailers

24 retailers£1,122 GBP to £7,218 GBP

Retailer 1
-
£1,047 GBP
Price last confirmed 27 days ago
A
Retailer 2
-
£1,122 GBP
View
Final sale: no returns
Retailer 3
-
£1,171 GBP
View
Price last confirmed 36 days ago
Retailer 4
-
£1,214 GBP
View
Price last confirmed 32 days ago
Retailer 5
-
£1,214 GBP
View
Price last confirmed 23 days ago
Retailer 6
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£1,231 GBP
View
Price last confirmed 40 days ago
A
Retailer 7
-
£1,290 GBP
View
A
Retailer 8
-
£1,388 GBP
View
A
Retailer 9
-
£1,640 GBP
View
A
Retailer 10
-
£1,749 GBP
View
A
Retailer 11
-
£1,854 GBP
View
A
Retailer 12
-
£1,957 GBP
View
Retailer 13
-
£2,203 GBP
View
Price last confirmed 9 days ago
Retailer 14
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£2,276 GBP
View
Price last confirmed 30 days ago
A
Retailer 15
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£2,292 GBP
View
A
Retailer 16
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£2,626 GBP
View
A
Retailer 17
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£2,703 GBP
View
B+
Retailer 18
-
£3,013 GBP
View
B+
Retailer 19
-
£3,135 GBP
View
B+
Retailer 20
-
£3,200 GBP
View
B+
Retailer 21
-
£3,614 GBP
View
B+
Retailer 22
-
£3,737 GBP
View
B+
Retailer 23
-
£4,086 GBP
View
Most Expensive
B
Brilliant Earth
9264978A · Nov 3
£7,218 GBP
$9,680 USD
View
23 more retailers have this diamond
Prices start from £1,122 GBPSave up to £6,096 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
3.10ct Heart
£1,122 GBP