CaratHunter
Plans
Heart|Lab Grown|IGI

4.03ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663578

Certificate IGI LG846663578

Diamond specifications and retailer prices

From €3,751 EUR
£3,300 GBP
As of November 1, 2026
Save €17,298 EUR (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €21,049 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.03ct lab-grown heart diamond

This 4.03ct 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 LG846663578 or 846663578. Listed at 10 retailers as of October 31, 2026, with prices from €3,751 to €21,049, a €17,298 spread on the same certified stone. With Clarity lists it at €21,049. 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

4.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663578
Dimensions10.18 × 10.75 × 6.38 mm
L/W Ratio1.06
Top View
10.18 mm10.75 mm4.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663578
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.3%

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: Nov 1
Current: €3,751 EUR|Low: €3,751 EUR|High: €21,049 EUR|Avg: €9,789 EUR|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 1, 2026
Retailer 1€3,751 EUR
Retailer 4€4,543 EUR
Retailer 8€5,394 EUR
Retailer 7€5,628 EUR
Retailer 3€5,861 EUR
Retailer 9€9,083 EUR
Retailer 5€9,376 EUR
Retailer 6€9,916 EUR
Retailer 2€15,897 EUR
With Clarity€21,049 EUR

7 data points across 10 retailers

10 retailers€3,751 EUR to €21,049 EUR

A
Cheapest Retailer
-
€3,751 EUR
£3,300 GBP
A
Retailer 2
-
€4,543 EUR
$5,075 USD
View
A
Retailer 3
-
€5,394 EUR
$6,026 USD
View
A
Retailer 4
-
€5,628 EUR
$6,288 USD
View
A
Retailer 5
-
€5,861 EUR
$6,548 USD
View
B+
Retailer 6
-
€9,083 EUR
View
B+
Retailer 7
-
€9,376 EUR
£8,248 GBP
View
B+
Retailer 8
-
€9,916 EUR
$11,078 USD
View
B+
Retailer 9
-
€15,897 EUR
$17,760 USD
View
Most Expensive
B
With Clarity
846663578 · Oct 31
€21,049 EUR
$23,516 USD
View
9 more retailers have this diamond
Prices start from €3,751 EURSave up to €17,298 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
4.03ct Heart
€3,751 EUR