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Heart|Lab Grown|IGI

4.00ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660277

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660277

Diamond specifications and retailer prices

From £2,900 GBP
$3,886 USD
As of October 30, 2026
Save £17,139 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £20,039 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4ct lab-grown heart diamond

This 4ct 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 LG804660277 or 804660277. Listed at 13 retailers as of October 29, 2026, with prices from £2,900 to £20,039, a £17,139 spread on the same certified stone. Do Amore Diamonds lists it at £20,039. 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

4.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660277
Dimensions10.60 × 9.86 × 6.44 mm
L/W Ratio1.08
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
10.60 mm9.86 mm4.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660277
Side View
Table 60.0%Crown 38.1°Girdle: THK-VTKPavilion 39.4°Culet: NoneDepth 60.8%

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: £20,039 GBP|Low: £2,740 GBP|High: £22,435 GBP|Avg: £7,890 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
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 8£2,900 GBP
Retailer 3£3,052 GBP
Retailer 11£3,147 GBP
Retailer 4£3,235 GBP
Retailer 13£3,422 GBP
Retailer 5£3,653 GBP
Retailer 12£4,480 GBP
Retailer 14£4,659 GBP
Retailer 10£5,234 GBP
Retailer 9£6,436 GBP
Retailer 6£7,324 GBP
Retailer 15£7,731 GBP
Retailer 2£9,874 GBP
Retailer 7£14,410 GBP
Do Amore Diamonds£20,039 GBP

29 data points across 15 retailers

13 retailers£2,900 GBP to £20,039 GBP

A
Cheapest Retailer
-
£2,900 GBP
$3,886 USD
A
Retailer 2
-
£3,052 GBP
$4,089 USD
View
A
Retailer 3
-
£3,147 GBP
$4,217 USD
View
A
Retailer 4
-
£3,235 GBP
$4,334 USD
View
A
Retailer 5
-
£3,422 GBP
$4,585 USD
View
A
Retailer 6
-
£3,653 GBP
$4,894 USD
View
Final sale: no returns
A
Retailer 7
-
£4,480 GBP
$6,003 USD
View
A
Retailer 8
-
£4,659 GBP
$6,243 USD
View
A
Retailer 9
-
£5,234 GBP
$7,013 USD
View
B+
Retailer 10
-
£6,436 GBP
€8,213 EUR
View
B+
Retailer 11
-
£7,731 GBP
View
B+
Retailer 12
-
£9,874 GBP
$13,230 USD
View
Most Expensive
B
Do Amore Diamonds
27-A76ACBFDB · Oct 29
£20,039 GBP
$26,850 USD
View
12 more retailers have this diamond
Prices start from £2,900 GBPSave up to £17,139 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
4.00ct Heart
£2,900 GBP