Heart|Lab Grown|IGI

3.73ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663743

Certificate IGI LG846663743

Diamond specifications and retailer prices

From €4,023 EUR
$4,495 USD
As of October 31, 2026
Save €13,332 EUR (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €17,356 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.73ct lab-grown heart diamond

This 3.73ct 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 LG846663743 or 846663743. Listed at 9 retailers as of October 31, 2026, with prices from €4,023 to €17,356, a €13,332 spread on the same certified stone. With Clarity lists it at €17,356. 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

3.73
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663743
Dimensions9.97 × 10.35 × 6.34 mm
L/W Ratio1.04
Top View
9.97 mm10.35 mm3.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663743
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.3%

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: Oct 31
Current: €5,255 EUR|Low: €4,023 EUR|High: €17,356 EUR|Avg: €8,228 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 31, 2026
Retailer 3€4,023 EUR
Retailer 6€4,612 EUR
Retailer 2€4,638 EUR
Retailer 5€4,856 EUR
Retailer 1€5,255 EUR
Retailer 7€7,489 EUR
Retailer 4€8,176 EUR
With Clarity€17,356 EUR

6 data points across 8 retailers

9 retailers€4,023 EUR to €17,356 EUR

A
Cheapest Retailer
-
€4,023 EUR
$4,495 USD
B+
Retailer 2
-
€4,612 EUR
$5,153 USD
View
B+
Retailer 3
-
€4,638 EUR
£4,080 GBP
View
B+
Retailer 4
-
€4,856 EUR
$5,425 USD
View
B+
Retailer 5
-
€5,255 EUR
$5,871 USD
View
B+
Retailer 6
-
€7,489 EUR
View
B+
Retailer 7
-
€8,176 EUR
$9,134 USD
View
B
Retailer 8
-
€16,004 EUR
$17,880 USD
View
Most Expensive
B
With Clarity
846663743 · Oct 31
€17,356 EUR
$19,390 USD
View
8 more retailers have this diamond
Prices start from €4,023 EURSave up to €13,332 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
3.73ct Heart
€4,023 EUR