Heart|Lab Grown|IGI

3.71ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660377

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660377

Diamond specifications and retailer prices

From €2,536 EUR

$2,833 USD

As of October 30, 2026

Save €14,963 EUR (86%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €17,499 EUR at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 3.71ct lab-grown heart diamond

This 3.71ct 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 LG804660377 or 804660377. Listed at 12 retailers as of October 30, 2026, with prices from €2,536 to €17,499, a €14,963 spread on the same certified stone. Do Amore Diamonds lists it at €17,499. 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

3.71

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.2°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG804660377

Dimensions9.53 × 10.62 × 6.35 mm

L/W Ratio1.11

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG804660377

Side View

Caratlytics Score

How it works →

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 30

Current: €17,499 EUR|Low: €2,536 EUR|High: €19,585 EUR|Avg: €7,627 EUR|-10.6%

Do Amore Diamonds

Retailer 2

Retailer 3

Retailer 4

Retailer 5

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Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

November 1, 2026

Retailer 10€2,536 EUR

Retailer 3€2,768 EUR

Retailer 13€2,889 EUR

Retailer 2€3,084 EUR

Retailer 8€3,211 EUR

Retailer 4€3,346 EUR

Retailer 15€4,069 EUR

Retailer 14€4,239 EUR

Retailer 12€4,588 EUR

Retailer 5€6,422 EUR

Retailer 11€8,298 EUR

Retailer 9€11,144 EUR

Retailer 7€13,762 EUR

Retailer 6€16,681 EUR

Do Amore Diamonds€17,499 EUR

28 data points across 15 retailers

12 retailers€2,536 EUR to €17,499 EUR

Cheapest Retailer

€2,536 EUR

$2,833 USD

Retailer 2

€2,768 EUR

$3,092 USD

View

Retailer 3

€2,889 EUR

$3,228 USD

View

Retailer 4

€3,084 EUR

$3,445 USD

View

Retailer 5

€3,211 EUR

$3,587 USD

View

Retailer 6

€3,346 EUR

$3,738 USD

View

Final sale: no returns

Retailer 7

€4,069 EUR

$4,546 USD

View

B+

Retailer 8

€4,239 EUR

$4,736 USD

View

B+

Retailer 9

€4,588 EUR

$5,126 USD

View

Retailer 10

€8,298 EUR

£7,300 GBP

View

B+

Retailer 11

€11,144 EUR

$12,450 USD

View

Most Expensive

Do Amore Diamonds

27-FDEF14AD4 · Oct 31

€17,499 EUR

$19,550 USD

View

11 more retailers have this diamond

Prices start from €2,536 EURSave up to €14,963 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.

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3.71ct Heart

€2,536 EUR