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Heart|Lab Grown|IGI

3.09ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG799646613

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799646613

Diamond specifications and retailer prices

From £1,121 GBP
As of November 2, 2026
Save £6,596 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,718 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.09ct lab-grown heart diamond

This 3.09ct 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 LG799646613 or 799646613. Listed at 20 retailers as of November 2, 2026, with prices from £1,121 to £7,718, a £6,596 spread on the same certified stone. Do Amore Diamonds lists it at £7,718. 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

3.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799646613
Dimensions8.83 × 10.22 × 5.88 mm
L/W Ratio1.16
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
8.83 mm10.22 mm3.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799646613
Side View
Table 56.0%Crown 33.1°Girdle: MED-STKPavilion 40°Culet: NoneDepth 57.5%

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 2
Current: £7,718 GBP|Low: £1,077 GBP|High: £9,276 GBP|Avg: £2,850 GBP
Do Amore Diamonds
Retailer 2
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Retailer 20
November 3, 2026
Retailer 6£1,121 GBP
Retailer 19£1,221 GBP
Retailer 8£1,256 GBP
Retailer 5£1,301 GBP
Retailer 10£1,301 GBP
Retailer 7£1,428 GBP
Retailer 12£1,515 GBP
Retailer 2£1,706 GBP
Retailer 3£1,783 GBP
Retailer 15£2,035 GBP
Retailer 9£2,049 GBP
Retailer 20£2,300 GBP
Retailer 4£2,692 GBP
Retailer 17£3,243 GBP
Retailer 13£3,345 GBP
Retailer 14£3,631 GBP
Retailer 16£4,101 GBP
Retailer 11£4,953 GBP
Retailer 18£7,576 GBP
Do Amore Diamonds£7,718 GBP

36 data points across 20 retailers

20 retailers£1,121 GBP to £7,718 GBP

A
Cheapest Retailer
-
£1,121 GBP
A
Retailer 2
-
£1,221 GBP
View
A
Retailer 3
-
£1,256 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,301 GBP
View
A
Retailer 5
-
£1,428 GBP
View
A
Retailer 6
-
£1,515 GBP
View
A
Retailer 7
-
£1,706 GBP
View
A
Retailer 8
-
£1,783 GBP
View
A
Retailer 9
-
£2,035 GBP
View
A
Retailer 10
-
£2,049 GBP
View
A
Retailer 11
-
£2,300 GBP
View
B+
Retailer 12
-
£2,692 GBP
View
B+
Retailer 13
-
£3,243 GBP
View
B+
Retailer 14
-
£3,345 GBP
View
B+
Retailer 15
-
£3,631 GBP
View
B+
Retailer 16
-
£4,101 GBP
View
B
Retailer 17
-
£4,953 GBP
View
B
Retailer 18
-
£5,053 GBP
View
B
Retailer 19
-
£7,576 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5F2A93C6A · Nov 2
£7,718 GBP
$10,350 USD
View
19 more retailers have this diamond
Prices start from £1,121 GBPSave up to £6,596 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
3.09ct Heart
£1,121 GBP