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Heart|Lab Grown|IGI

4.06ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG811635723

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811635723

Diamond specifications and retailer prices

From £2,941 GBP
$3,941 USD
As of October 30, 2026
Save £17,381 GBP (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £20,323 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.06ct lab-grown heart diamond

This 4.06ct 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 LG811635723 or 811635723. Listed at 11 retailers as of October 29, 2026, with prices from £2,941 to £20,323, a £17,381 spread on the same certified stone. Do Amore Diamonds lists it at £20,323. 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

4.06
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635723
Dimensions10.94 × 9.51 × 6.56 mm
L/W Ratio1.15
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
10.94 mm9.51 mm4.06 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635723
Side View
Table 60.0%Crown 37.6°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 60.0%

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: £20,323 GBP|Low: £2,941 GBP|High: £22,756 GBP|Avg: £7,351 GBP|-10.7%
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
October 30, 2026
Retailer 5£2,941 GBP
Retailer 12£3,096 GBP
Retailer 8£3,191 GBP
Retailer 3£3,321 GBP
Retailer 11£3,467 GBP
Retailer 9£4,544 GBP
Retailer 10£4,726 GBP
Retailer 7£5,307 GBP
Retailer 4£7,431 GBP
Retailer 6£7,873 GBP
Retailer 2£10,023 GBP
Do Amore Diamonds£20,323 GBP

26 data points across 12 retailers

11 retailers£2,941 GBP to £20,323 GBP

A
Cheapest Retailer
-
£2,941 GBP
$3,941 USD
A
Retailer 2
-
£3,096 GBP
$4,148 USD
View
A
Retailer 3
-
£3,191 GBP
$4,275 USD
View
A
Retailer 4
-
£3,321 GBP
$4,450 USD
View
A
Retailer 5
-
£3,467 GBP
$4,645 USD
View
A
Retailer 6
-
£4,544 GBP
$6,089 USD
View
A
Retailer 7
-
£4,726 GBP
$6,332 USD
View
A
Retailer 8
-
£5,307 GBP
$7,111 USD
View
B+
Retailer 9
-
£7,873 GBP
View
B+
Retailer 10
-
£10,023 GBP
$13,430 USD
View
Most Expensive
B
Do Amore Diamonds
27-E729F2BB3 · Oct 29
£20,323 GBP
$27,230 USD
View
10 more retailers have this diamond
Prices start from £2,941 GBPSave up to £17,381 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
4.06ct Heart
£2,941 GBP