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Heart|Lab Grown|IGI

4.51ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG794623406

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG794623406

Diamond specifications and retailer prices

From €4,008 EUR
$4,478 USD
As of October 30, 2026
Save €23,570 EUR (85%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €27,578 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG794623406 or 794623406. Listed at 9 retailers as of October 30, 2026, with prices from €4,008 to €27,578, a €23,570 spread on the same certified stone. Do Amore Diamonds lists it at €27,578. 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

4.51
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794623406
Dimensions11.84 × 9.95 × 6.57 mm
L/W Ratio1.19
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
11.84 mm9.95 mm4.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794623406
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 55.5%

Caratlytics Score

How it works →
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 30
Current: €27,578 EUR|Low: €4,008 EUR|High: €35,687 EUR|Avg: €14,487 EUR|-22.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12€4,008 EUR
Retailer 10€4,201 EUR
Retailer 9€5,994 EUR
Retailer 7€5,997 EUR
Retailer 8€6,093 EUR
Retailer 11€7,192 EUR
Retailer 6€10,499 EUR
Retailer 4€11,862 EUR
Retailer 2€12,988 EUR
Retailer 13€14,966 EUR
Retailer 3€20,912 EUR
Do Amore Diamonds€27,578 EUR
Retailer 5€34,891 EUR

21 data points across 13 retailers

9 retailers€4,008 EUR to €27,578 EUR

A
Cheapest Retailer
-
€4,008 EUR
$4,478 USD
A
Retailer 2
-
€4,201 EUR
$4,693 USD
View
A
Retailer 3
-
€5,994 EUR
$6,697 USD
View
A
Retailer 4
-
€5,997 EUR
$6,700 USD
View
A
Retailer 5
-
€6,093 EUR
$6,807 USD
View
A
Retailer 6
-
€7,192 EUR
$8,035 USD
View
B+
Retailer 7
-
€10,499 EUR
£9,236 GBP
View
B+
Retailer 8
-
€12,988 EUR
$14,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-84D286800 · Oct 31
€27,578 EUR
$30,810 USD
View
8 more retailers have this diamond
Prices start from €4,008 EURSave up to €23,570 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
4.51ct Heart
€4,008 EUR