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Heart|Lab Grown|IGI

4.07ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG846658046

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846658046

Diamond specifications and retailer prices

From £4,574 GBP
$6,129 USD
As of October 30, 2026
Save £13,151 GBP (74%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £17,725 GBP at With Clarity · As of October 28, 2026
View at With Clarity

About this 4.07ct lab-grown heart diamond

This 4.07ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846658046 or 846658046. Listed at 3 retailers as of October 28, 2026, with prices from £4,574 to £17,725, a £13,151 spread on the same certified stone. With Clarity lists it at £17,725. 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

4.07
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846658046
Dimensions9.49 × 10.98 × 6.66 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
9.49 mm10.98 mm4.07 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846658046
Side View
Table 59.0%Crown 37.1°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £4,574 GBP|Low: £4,574 GBP|High: £37,386 GBP|Avg: £21,015 GBP|-85.2%
Retailer 1
Retailer 2
With Clarity
October 30, 2026
Retailer 1£4,574 GBP
Retailer 2£7,891 GBP
With Clarity£17,725 GBP

4 data points across 3 retailers

3 retailers£4,574 GBP to £17,725 GBP

A
Cheapest Retailer
-
£4,574 GBP
$6,129 USD
B+
Retailer 2
-
£7,891 GBP
View
Most Expensive
B
With Clarity
846658046 · Oct 28
£17,725 GBP
$23,750 USD
View
2 more retailers have this diamond
Prices start from £4,574 GBPSave up to £13,151 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
4.07ct Heart
£4,574 GBP