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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 $1,633 AUD
$1,147 USD
As of October 31, 2026
Save $5,003 AUD (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,955 AUD 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 30, 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
Colour
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

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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 31
Current: $12,955 AUD|Low: $1,619 AUD|High: $12,955 AUD|Avg: $3,974 AUD
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$1,619 AUD
Retailer 3$1,633 AUD
Retailer 6$1,691 AUD
Retailer 9$1,943 AUD
Retailer 7$2,019 AUD
Retailer 8$2,685 AUD
Retailer 11$3,459 AUD
Retailer 15$3,535 AUD
Retailer 10$3,974 AUD
Retailer 12$3,997 AUD
Retailer 4$5,140 AUD
Retailer 5$5,245 AUD
Retailer 2$5,303 AUD
Retailer 13$6,031 AUD
Do Amore Diamonds$12,955 AUD

42 data points across 15 retailers

20 retailers$1,633 AUD to $6,635 AUD

Retailer 1
-
$1,399 AUD
$983 USD
Price last confirmed 29 days ago
Retailer 2
-
$1,587 AUD
$1,115 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$1,619 AUD
£896 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$1,633 AUD
$1,147 USD
View
Final sale: no returns
Retailer 5
-
$1,691 AUD
$1,188 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
$1,943 AUD
$1,365 USD
View
A
Retailer 7
-
$2,271 AUD
$1,595 USD
View
A
Retailer 8
-
$2,383 AUD
$1,674 USD
View
B+
Retailer 9
-
$2,685 AUD
£1,485 GBP
View
B+
Retailer 10
-
$3,459 AUD
View
Retailer 11
-
$3,501 AUD
$2,459 USD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
$3,535 AUD
$2,483 USD
View
B+
Retailer 13
-
$3,974 AUD
ZAR 45,102 ZAR
View
Retailer 14
-
$3,997 AUD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$5,140 AUD
$3,611 USD
View
B
Retailer 16
-
$5,245 AUD
$3,684 USD
View
B
Retailer 17
-
$5,303 AUD
View
Retailer 18
-
$6,031 AUD
£3,336 GBP
View
Price last confirmed 10 days ago
B
Retailer 19
-
$6,635 AUD
$4,661 USD
View
Most Expensive
Do Amore Diamonds
27-2D89F9AD6 · Oct 30
$12,955 AUD
$9,100 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,633 AUDSave up to $5,003 AUD

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
$1,633 AUD