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Heart|Lab Grown|IGI

3.09ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG823673551

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823673551

Diamond specifications and retailer prices

From £1,035 GBP
As of November 3, 2026
Save £6,690 GBP (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £7,725 GBP at Do Amore Diamonds · As of November 3, 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 LG823673551 or 823673551. Listed at 11 retailers as of November 3, 2026, with prices from £1,035 to £7,725, a £6,690 spread on the same certified stone. Do Amore Diamonds lists it at £7,725. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823673551
Dimensions10.10 × 9.04 × 5.80 mm
L/W Ratio1.12
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
10.10 mm9.04 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823673551
Side View
Table 60.0%Crown 36.7°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 57.4%

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 3
Current: £7,725 GBP|Low: £903 GBP|High: £9,276 GBP|Avg: £3,011 GBP|+6.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
November 3, 2026
Retailer 7£903 GBP
Retailer 2£1,035 GBP
Retailer 3£1,057 GBP
Retailer 12£1,152 GBP
Retailer 14£1,470 GBP
Retailer 15£1,483 GBP
Retailer 8£1,966 GBP
Retailer 4£1,988 GBP
Retailer 5£2,346 GBP
Retailer 10£2,514 GBP
Retailer 13£3,057 GBP
Retailer 9£3,576 GBP
Retailer 6£4,904 GBP
Retailer 11£6,681 GBP
Do Amore Diamonds£7,725 GBP

24 data points across 15 retailers

11 retailers£1,035 GBP to £7,725 GBP

A
Cheapest Retailer
-
£1,035 GBP
A
Retailer 2
-
£1,057 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,152 GBP
View
A
Retailer 4
-
£1,470 GBP
View
A
Retailer 5
-
£1,483 GBP
View
A
Retailer 6
-
£1,966 GBP
View
A
Retailer 7
-
£2,514 GBP
View
B+
Retailer 8
-
£3,057 GBP
View
B+
Retailer 9
-
£3,576 GBP
View
B
Retailer 10
-
£6,681 GBP
View
Most Expensive
B
Do Amore Diamonds
27-85C6602FC · Nov 3
£7,725 GBP
$10,360 USD
View
10 more retailers have this diamond
Prices start from £1,035 GBPSave up to £6,690 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
£1,035 GBP