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Heart|Lab Grown|IGI

3.51ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG670447559

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG670447559

Diamond specifications and retailer prices

From $829 AUD
$582 USD
As of October 30, 2026
Save $8,154 AUD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $9,979 AUD at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 3.51ct lab-grown heart diamond

This 3.51ct 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 LG670447559 or 670447559. Listed at 25 retailers as of October 30, 2026, with a 984% 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

3.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670447559
Dimensions9.09 × 10.37 × 6.41 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.09 mm10.37 mm3.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670447559
Side View
Table 65.0%Crown 38.4°Girdle: STK-THKPavilion 41.9°Culet: NoneDepth 61.8%

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 30
Current: $4,469 AUD|Low: $796 AUD|High: $4,524 AUD|Avg: $2,128 AUD|-1.2%
Retailer 1
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
November 1, 2026
Retailer 4$829 AUD
Retailer 14$928 AUD
Retailer 3$1,028 AUD
Retailer 15$1,028 AUD
Retailer 10$1,217 AUD
Retailer 8$1,294 AUD
Retailer 6$1,520 AUD
Retailer 9$1,695 AUD
Retailer 11$2,397 AUD
Retailer 13$2,459 AUD
Retailer 12$2,464 AUD
Retailer 5$2,984 AUD
Retailer 7$3,279 AUD
Retailer 2$3,909 AUD
Retailer 1$4,469 AUD

35 data points across 15 retailers

25 retailers$829 AUD to $8,983 AUD

A
Cheapest Retailer
-
$829 AUD
$582 USD
A
Retailer 2
-
$927 AUD
$651 USD
View
Final sale: no returns
A
Retailer 3
-
$928 AUD
$652 USD
View
A
Retailer 4
-
$1,028 AUD
$722 USD
View
Retailer 5
-
$1,028 AUD
$722 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$1,217 AUD
$855 USD
View
A
Retailer 7
-
$1,294 AUD
£716 GBP
View
A
Retailer 8
-
$1,330 AUD
HK$7,300 HKD
View
A
Retailer 9
-
$1,444 AUD
$1,014 USD
View
A
Retailer 10
-
$1,520 AUD
$1,068 USD
View
A
Retailer 11
-
$1,695 AUD
£938 GBP
View
A
Retailer 12
-
$1,751 AUD
$1,230 USD
View
B+
Retailer 13
-
$2,397 AUD
View
B+
Retailer 14
-
$2,459 AUD
$1,727 USD
View
B+
Retailer 15
-
$2,464 AUD
ZAR 27,957 ZAR
View
B+
Retailer 16
-
$2,984 AUD
$2,096 USD
View
B+
Retailer 17
-
$3,279 AUD
$2,303 USD
View
B+
Retailer 18
-
$3,411 AUD
$2,396 USD
View
B
Retailer 19
-
$3,826 AUD
$2,688 USD
View
B
Retailer 20
-
$3,866 AUD
SGD 3,670 SGD
View
Retailer 21
-
$3,909 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
-
$4,469 AUD
£2,472 GBP
View
B
Retailer 23
-
$7,360 AUD
$5,170 USD
View
B
Retailer 24
-
$8,983 AUD
$6,310 USD
View
Most Expensive
Brilliant Earth
14090797Y · Oct 1
$9,979 AUD
$7,010 USD
View
Price last confirmed 31 days ago
24 more retailers have this diamond
Prices start from $829 AUDSave up to $8,154 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
3.51ct Heart
$829 AUD