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Heart|Lab Grown|IGI

4.00ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG811622391

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811622391

Diamond specifications and retailer prices

From €4,757 EUR
$5,315 USD
As of October 30, 2026
Save €14,891 EUR (76%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €19,648 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811622391 or 811622391. Listed at 20 retailers as of October 30, 2026, with prices from €4,757 to €19,648, a €14,891 spread on the same certified stone. Taylor and Hart lists it at €19,648. 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811622391
Dimensions10.36 × 10.72 × 6.33 mm
L/W Ratio1.03
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
10.36 mm10.72 mm4.00 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811622391
Side View
Table 56.0%Crown 35.3°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 59.0%

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: €10,003 EUR|Low: €4,568 EUR|High: €17,776 EUR|Avg: €9,092 EUR|+8.5%
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
October 31, 2026
Retailer 2€4,757 EUR
Retailer 5€5,123 EUR
Retailer 6€5,328 EUR
Retailer 3€5,519 EUR
Retailer 14€5,532 EUR
Retailer 13€6,796 EUR
Retailer 7€7,016 EUR
Retailer 10€8,101 EUR
Retailer 1€10,003 EUR
Retailer 9€11,290 EUR
Retailer 8€11,746 EUR
Retailer 12€12,167 EUR
Retailer 4€13,984 EUR
Retailer 11€17,239 EUR

38 data points across 14 retailers

20 retailers€4,757 EUR to €19,648 EUR

A
Cheapest Retailer
-
€4,757 EUR
$5,315 USD
A
Retailer 2
-
€4,986 EUR
$5,570 USD
View
A
Retailer 3
-
€5,123 EUR
$5,723 USD
View
A
Retailer 4
-
€5,328 EUR
$5,953 USD
View
Final sale: no returns
A
Retailer 5
-
€5,414 EUR
$6,049 USD
View
A
Retailer 6
-
€5,519 EUR
$6,166 USD
View
Retailer 7
-
€5,519 EUR
$6,166 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
€5,532 EUR
$6,180 USD
View
A
Retailer 9
-
€6,551 EUR
$7,319 USD
View
A
Retailer 10
-
€6,796 EUR
$7,593 USD
View
A
Retailer 11
-
€7,016 EUR
£6,171 GBP
View
B+
Retailer 12
-
€8,101 EUR
$9,050 USD
View
B+
Retailer 13
-
€10,003 EUR
View
B+
Retailer 14
-
€11,290 EUR
£9,932 GBP
View
B+
Retailer 15
-
€11,746 EUR
ZAR 211,997 ZAR
View
Retailer 16
-
€12,167 EUR
A$20,913 AUD
View
Price last confirmed 9 days ago
B
Retailer 17
-
€13,984 EUR
$15,623 USD
View
B
Retailer 18
-
€15,347 EUR
$17,146 USD
View
B
Retailer 19
-
€17,239 EUR
$19,260 USD
View
Most Expensive
B
Taylor and Hart
74W3RJB · Oct 30
€19,648 EUR
$21,951 USD
View
19 more retailers have this diamond
Prices start from €4,757 EURSave up to €14,891 EUR

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
€4,757 EUR