Heart|Lab Grown|IGI

4.55ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804665161

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804665161

Diamond specifications and retailer prices

From €4,521 EUR

$5,051 USD

As of October 30, 2026

Save €26,583 EUR (85%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: €31,104 EUR at Do Amore Diamonds · As of November 1, 2026

View at Do Amore Diamonds

About this 4.55ct lab-grown heart diamond

This 4.55ct 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 LG804665161 or 804665161. Listed at 12 retailers as of October 30, 2026, with prices from €4,521 to €31,104, a €26,583 spread on the same certified stone. Do Amore Diamonds lists it at €31,104. 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

4.55

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.8°

Pavilion angle38.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG804665161

Dimensions9.89 × 11.33 × 6.79 mm

L/W Ratio1.15

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 LG804665161

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: €31,104 EUR|Low: €4,521 EUR|High: €36,421 EUR|Avg: €12,388 EUR|-14.6%

Do Amore Diamonds

Retailer 2

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Retailer 15

November 1, 2026

Retailer 14€4,521 EUR

Retailer 3€4,755 EUR

Retailer 10€4,760 EUR

Retailer 11€5,263 EUR

Retailer 12€5,557 EUR

Retailer 15€6,599 EUR

Retailer 4€6,871 EUR

Retailer 9€6,873 EUR

Retailer 8€8,105 EUR

Retailer 2€11,780 EUR

Retailer 13€12,281 EUR

Retailer 5€13,095 EUR

Retailer 6€18,294 EUR

Retailer 7€24,607 EUR

Do Amore Diamonds€31,104 EUR

28 data points across 15 retailers

12 retailers€4,521 EUR to €31,104 EUR

Cheapest Retailer

€4,521 EUR

$5,051 USD

Retailer 2

€4,755 EUR

$5,312 USD

View

Retailer 3

€4,760 EUR

$5,318 USD

View

Retailer 4

€5,263 EUR

$5,880 USD

View

Retailer 5

€5,557 EUR

$6,208 USD

View

Retailer 6

€6,599 EUR

$7,373 USD

View

Retailer 7

€6,871 EUR

$7,676 USD

View

Final sale: no returns

Retailer 8

€6,873 EUR

$7,678 USD

View

Retailer 9

€8,105 EUR

$9,055 USD

View

B+

Retailer 10

€11,780 EUR

£10,363 GBP

View

B+

Retailer 11

€12,281 EUR

$13,720 USD

View

Most Expensive

Do Amore Diamonds

27-6EF96AC33 · Nov 1

€31,104 EUR

$34,750 USD

View

11 more retailers have this diamond

Prices start from €4,521 EURSave up to €26,583 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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4.55ct Heart

€4,521 EUR