Heart|Lab Grown|IGI

4.51ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG840608217

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840608217

Diamond specifications and retailer prices

From $3,785 USD
As of October 25, 2026
14 retailers carry this diamond
Most expensive: $3,785 USD at With Clarity
View at With Clarity

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 LG840608217 or 840608217. Listed at 14 retailers as of October 25, 2026. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840608217
Dimensions10.42 × 11.34 × 6.72 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.42 mm11.34 mm4.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840608217
Side View
Table 67.0%Crown 36.4°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 59.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 25
Current: $666 USD|Low: $648 USD|High: $3,867 USD|Avg: $2,065 USD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 22, 2026
Retailer 2$666 USD
Retailer 1$666 USD
Retailer 10$725 USD
Retailer 12$1,210 USD
Retailer 8$1,241 USD
Retailer 6$1,665 USD
Retailer 9$1,974 USD
Retailer 5$1,975 USD
Retailer 4$2,173 USD
Retailer 11$2,477 USD
Retailer 7$3,273 USD
Retailer 3$3,315 USD
With Clarity$3,785 USD

22 data points across 13 retailers

14 retailers

Retailer 1
-
$666 USD
Price last confirmed 9 days ago
Retailer 2
-
$666 USD
£525 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
$725 USD
View
Price last confirmed 9 days ago
Retailer 4
-
$1,210 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$1,241 USD
€1,182 EUR
View
Price last confirmed 7 days ago
Retailer 6
-
$1,665 USD
A$2,562 AUD
View
Price last confirmed 10 days ago
Retailer 7
-
$1,974 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$1,975 USD
View
Price last confirmed 6 days ago
Retailer 9
-
$2,173 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$2,477 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$2,615 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$3,273 USD
£2,577 GBP
View
Price last confirmed 9 days ago
Retailer 13
-
$3,315 USD
SGD 4,480 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
With Clarity
840608217 · Oct 25
$3,785 USD
View
13 more retailers have this diamond

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.

B
4.51ct Heart
$3,785 USD