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Heart|Lab Grown|IGI

4.05ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG665423550

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665423550

Diamond specifications and retailer prices

From €3,111 EUR
$3,476 USD
As of October 29, 2026
Save €8,133 EUR (72%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €11,244 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.05ct lab-grown heart diamond

This 4.05ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665423550 or 665423550. Listed at 22 retailers as of October 29, 2026, with prices from €3,111 to €11,244, a €8,133 spread on the same certified stone. Taylor and Hart lists it at €11,244. 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

4.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665423550
Dimensions10.65 × 9.71 × 6.47 mm
L/W Ratio1.10
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
10.65 mm9.71 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665423550
Side View
Table 62.0%Crown 41.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.8%

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: €8,906 EUR|Low: €3,111 EUR|High: €15,680 EUR|Avg: €7,999 EUR|-30.0%
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
Taylor and Hart
October 30, 2026
Retailer 3€3,111 EUR
Retailer 16€3,227 EUR
Retailer 12€3,366 EUR
Retailer 2€3,746 EUR
Retailer 9€4,277 EUR
Retailer 6€4,537 EUR
Retailer 14€4,612 EUR
Retailer 11€5,164 EUR
Retailer 15€5,170 EUR
Retailer 10€6,860 EUR
Retailer 4€7,730 EUR
Retailer 13€8,215 EUR
Retailer 1€8,906 EUR
Retailer 5€8,940 EUR
Retailer 8€9,623 EUR
Retailer 7€10,839 EUR
Taylor and Hart€11,244 EUR

36 data points across 17 retailers

22 retailers€3,111 EUR to €11,244 EUR

A
Cheapest Retailer
-
€3,111 EUR
$3,476 USD
Final sale: no returns
A
Retailer 2
-
€3,227 EUR
$3,605 USD
View
A
Retailer 3
-
€3,366 EUR
$3,760 USD
View
A
Retailer 4
-
€3,746 EUR
HK$32,700 HKD
View
Retailer 5
-
€3,797 EUR
$4,242 USD
View
Price last confirmed 14 days ago
Retailer 6
-
€3,980 EUR
$4,446 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
€4,277 EUR
£3,762 GBP
View
Retailer 8
-
€4,405 EUR
$4,921 USD
View
Price last confirmed 28 days ago
Retailer 9
-
€4,405 EUR
$4,921 USD
View
Price last confirmed 14 days ago
A
Retailer 10
-
€4,537 EUR
$5,069 USD
View
A
Retailer 11
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€4,612 EUR
$5,152 USD
View
A
Retailer 12
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€5,164 EUR
View
A
Retailer 13
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€5,170 EUR
$5,776 USD
View
Retailer 14
-
€5,504 EUR
$6,149 USD
View
Price last confirmed 14 days ago
A
Retailer 15
-
€6,860 EUR
ZAR 123,822 ZAR
View
B+
Retailer 16
-
€7,730 EUR
$8,636 USD
View
B+
Retailer 17
-
€8,215 EUR
£7,227 GBP
View
B+
Retailer 18
-
€8,906 EUR
$9,950 USD
View
B+
Retailer 19
-
€8,940 EUR
$9,988 USD
View
Retailer 20
-
€9,623 EUR
A$16,539 AUD
View
Price last confirmed 8 days ago
B+
Retailer 21
-
€10,839 EUR
SGD 16,364 SGD
View
Most Expensive
B+
Taylor and Hart
JPUALNZ · Oct 30
€11,244 EUR
$12,562 USD
View
21 more retailers have this diamond
Prices start from €3,111 EURSave up to €8,133 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
4.05ct Heart
€3,111 EUR