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Heart|Lab Grown|IGI

4.01ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804656572

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804656572

Diamond specifications and retailer prices

From £6,321 GBP
As of October 30, 2026
Save £17,635 GBP (74%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £23,956 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.01ct lab-grown heart diamond

This 4.01ct 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 LG804656572 or 804656572. Listed at 21 retailers as of October 30, 2026, with prices from £6,321 to £23,956, a £17,635 spread on the same certified stone. Taylor and Hart lists it at £23,956. 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

4.01
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804656572
Dimensions10.62 × 10.60 × 6.30 mm
L/W Ratio1.00
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
10.62 mm10.60 mm4.01 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804656572
Side View
Table 56.0%Crown 36.3°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 59.4%

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: Oct 30
Current: £6,321 GBP|Low: £6,262 GBP|High: £19,376 GBP|Avg: £9,985 GBP|-0.8%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 1£6,321 GBP
Retailer 2£6,523 GBP
Retailer 8£6,707 GBP
Retailer 6£6,783 GBP
Retailer 9£7,304 GBP
Retailer 18£7,493 GBP
Retailer 14£7,519 GBP
Retailer 3£7,566 GBP
Retailer 7£7,566 GBP
Retailer 17£8,416 GBP
Retailer 5£8,509 GBP
Retailer 16£9,269 GBP
Retailer 10£10,839 GBP
Retailer 13£13,849 GBP
Retailer 12£14,035 GBP
Retailer 15£15,852 GBP
Retailer 11£16,105 GBP
Retailer 4£19,376 GBP

42 data points across 18 retailers

21 retailers£6,321 GBP to £23,956 GBP

A
Cheapest Retailer
-
£6,321 GBP
A
Retailer 2
-
£6,523 GBP
$8,740 USD
View
B+
Retailer 3
-
£6,707 GBP
$8,987 USD
View
B+
Retailer 4
-
£6,783 GBP
$9,089 USD
View
B+
Retailer 5
-
£6,980 GBP
$9,353 USD
View
B+
Retailer 6
-
£7,304 GBP
$9,787 USD
View
Final sale: no returns
B+
Retailer 7
-
£7,493 GBP
$10,040 USD
View
B+
Retailer 8
-
£7,519 GBP
$10,075 USD
View
B+
Retailer 9
-
£7,566 GBP
$10,138 USD
View
Retailer 10
-
£7,566 GBP
$10,138 USD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£8,416 GBP
$11,277 USD
View
B+
Retailer 12
-
£8,509 GBP
$11,401 USD
View
Retailer 13
-
£9,269 GBP
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£10,839 GBP
View
B+
Retailer 15
-
£13,849 GBP
View
B
Retailer 16
-
£14,035 GBP
€17,910 EUR
View
B+
Retailer 17
-
£15,852 GBP
$21,240 USD
View
B+
Retailer 18
-
£16,105 GBP
ZAR 348,604 ZAR
View
B
Retailer 19
-
£19,376 GBP
$25,962 USD
View
B
Retailer 20
-
£21,073 GBP
$28,236 USD
View
Most Expensive
B
Taylor and Hart
5BHCJV3 · Oct 30
£23,956 GBP
$32,099 USD
View
20 more retailers have this diamond
Prices start from £6,321 GBPSave up to £17,635 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
4.01ct Heart
£6,321 GBP