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Heart|Lab Grown|IGI

4.51ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG671440062

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG671440062

Diamond specifications and retailer prices

From €1,027 EUR
$1,147 USD
As of October 31, 2026
Save €3,145 EUR (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €8,145 EUR at Do Amore Diamonds · As of October 30, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG671440062 or 671440062. Listed at 20 retailers as of October 31, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671440062
Dimensions9.43 × 11.30 × 6.83 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm11.30 mm4.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671440062
Side View
Table 62.0%Crown 38.9°Girdle: THK-VTKPavilion 41.3°Culet: NoneDepth 60.4%

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: €8,145 EUR|Low: €1,018 EUR|High: €8,145 EUR|Avg: €2,501 EUR
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 14€1,018 EUR
Retailer 3€1,027 EUR
Retailer 6€1,063 EUR
Retailer 10€1,222 EUR
Retailer 7€1,269 EUR
Retailer 9€1,688 EUR
Retailer 12€2,175 EUR
Retailer 15€2,223 EUR
Retailer 11€2,499 EUR
Retailer 2€2,515 EUR
Retailer 4€3,232 EUR
Retailer 5€3,298 EUR
Retailer 8€3,334 EUR
Retailer 13€3,792 EUR
Do Amore Diamonds€8,145 EUR

41 data points across 15 retailers

20 retailers€1,027 EUR to €4,172 EUR

Retailer 1
-
€880 EUR
$983 USD
Price last confirmed 30 days ago
Retailer 2
-
€998 EUR
$1,115 USD
View
Price last confirmed 33 days ago
Retailer 3
-
€1,018 EUR
£896 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
€1,027 EUR
$1,147 USD
View
Final sale: no returns
Retailer 5
-
€1,063 EUR
$1,188 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
€1,222 EUR
$1,365 USD
View
A
Retailer 7
-
€1,428 EUR
$1,595 USD
View
A
Retailer 8
-
€1,498 EUR
$1,674 USD
View
B+
Retailer 9
-
€1,688 EUR
£1,485 GBP
View
B+
Retailer 10
-
€2,175 EUR
A$3,738 AUD
View
Retailer 11
-
€2,201 EUR
$2,459 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
€2,223 EUR
$2,483 USD
View
B+
Retailer 13
-
€2,499 EUR
ZAR 45,102 ZAR
View
B+
Retailer 14
-
€2,515 EUR
A$4,323 AUD
View
B
Retailer 15
-
€3,232 EUR
$3,611 USD
View
B
Retailer 16
-
€3,298 EUR
$3,684 USD
View
B
Retailer 17
-
€3,334 EUR
A$5,731 AUD
View
Retailer 18
-
€3,792 EUR
£3,336 GBP
View
Price last confirmed 11 days ago
B
Retailer 19
-
€4,172 EUR
$4,661 USD
View
Most Expensive
Do Amore Diamonds
27-2D89F9AD6 · Oct 30
€8,145 EUR
$9,100 USD
View
Price under review
19 more retailers have this diamond
Prices start from €1,027 EURSave up to €3,145 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
€1,027 EUR