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Heart|Lab Grown|IGI

4.02ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG780667820

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG780667820

Diamond specifications and retailer prices

From £3,169 GBP
$4,246 USD
As of October 29, 2026
Save £16,303 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £19,472 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.02ct lab-grown heart diamond

This 4.02ct 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 LG780667820 or 780667820. Listed at 20 retailers as of October 29, 2026, with prices from £3,169 to £19,472, a £16,303 spread on the same certified stone. Do Amore Diamonds lists it at £19,472. 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

4.02
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780667820
Dimensions11.20 × 9.36 × 6.57 mm
L/W Ratio1.20
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
11.20 mm9.36 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780667820
Side View
Table 55.0%Crown 34.6°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 58.7%

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: Oct 29
Current: £19,472 GBP|Low: £3,000 GBP|High: £25,808 GBP|Avg: £9,460 GBP|-24.6%
Do Amore Diamonds
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
October 31, 2026
Retailer 6£3,169 GBP
Retailer 8£3,284 GBP
Retailer 13£3,392 GBP
Retailer 7£3,992 GBP
Retailer 11£4,353 GBP
Retailer 2£4,648 GBP
Retailer 14£4,686 GBP
Retailer 10£7,542 GBP
Retailer 9£7,711 GBP
Retailer 4£8,054 GBP
Retailer 3£9,036 GBP
Retailer 5£12,889 GBP
Retailer 12£14,270 GBP
Retailer 15£16,137 GBP
Do Amore Diamonds£19,472 GBP

33 data points across 15 retailers

20 retailers£3,169 GBP to £19,472 GBP

A
Cheapest Retailer
-
£3,169 GBP
$4,246 USD
Final sale: no returns
A
Retailer 2
-
£3,284 GBP
$4,400 USD
View
A
Retailer 3
-
£3,392 GBP
$4,545 USD
View
Retailer 4
-
£3,441 GBP
$4,611 USD
View
Price last confirmed 22 days ago
Retailer 5
-
£3,607 GBP
$4,833 USD
View
Price last confirmed 32 days ago
Retailer 6
-
£3,992 GBP
$5,349 USD
View
Price last confirmed 27 days ago
Retailer 7
-
£3,992 GBP
$5,349 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£4,353 GBP
$5,833 USD
View
A
Retailer 9
-
£4,648 GBP
View
A
Retailer 10
-
£4,686 GBP
$6,279 USD
View
Retailer 11
-
£5,231 GBP
$7,009 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
£7,542 GBP
View
B+
Retailer 13
-
£7,711 GBP
ZAR 166,910 ZAR
View
B+
Retailer 14
-
£8,054 GBP
$10,791 USD
View
B+
Retailer 15
-
£9,036 GBP
$12,107 USD
View
B+
Retailer 16
-
£12,889 GBP
$17,270 USD
View
B
Retailer 17
-
£14,270 GBP
$19,120 USD
View
Retailer 18
-
£14,270 GBP
$19,120 USD
View
Price last confirmed 18 days ago
B+
Retailer 19
-
£16,137 GBP
$21,622 USD
View
Most Expensive
B
Do Amore Diamonds
27-F50412EF9 · Oct 31
£19,472 GBP
$26,090 USD
View
19 more retailers have this diamond
Prices start from £3,169 GBPSave up to £16,303 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
4.02ct Heart
£3,169 GBP