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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 $582 USD
As of October 30, 2026
Save $5,728 USD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $7,010 USD 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
Color
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: $1,191 USD|Low: $559 USD|High: $3,178 USD|Avg: $1,493 USD|+0.3%
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$582 USD
Retailer 14$652 USD
Retailer 3$722 USD
Retailer 15$722 USD
Retailer 8$855 USD
Retailer 10$912 USD
Retailer 6$1,068 USD
Retailer 1$1,191 USD
Retailer 9$1,684 USD
Retailer 13$1,727 USD
Retailer 12$1,731 USD
Retailer 5$2,096 USD
Retailer 7$2,303 USD
Retailer 2$2,746 USD
Retailer 11$3,157 USD

35 data points across 15 retailers

25 retailers$582 USD to $6,310 USD

A
Cheapest Retailer
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$582 USD
A
Retailer 2
-
$651 USD
View
Final sale: no returns
A
Retailer 3
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$652 USD
View
A
Retailer 4
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$722 USD
View
Retailer 5
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$722 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$855 USD
View
A
Retailer 7
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$912 USD
£718 GBP
View
A
Retailer 8
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$934 USD
HK$7,300 HKD
View
A
Retailer 9
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$1,014 USD
View
A
Retailer 10
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$1,068 USD
View
A
Retailer 11
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$1,191 USD
£938 GBP
View
A
Retailer 12
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$1,230 USD
View
B+
Retailer 13
-
$1,684 USD
A$2,590 AUD
View
B+
Retailer 14
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$1,727 USD
View
B+
Retailer 15
-
$1,731 USD
ZAR 27,957 ZAR
View
B+
Retailer 16
-
$2,096 USD
View
B+
Retailer 17
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$2,303 USD
View
B+
Retailer 18
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$2,396 USD
View
B
Retailer 19
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$2,688 USD
View
B
Retailer 20
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$2,716 USD
SGD 3,670 SGD
View
Retailer 21
-
$2,746 USD
A$4,224 AUD
View
Price last confirmed 23 days ago
B
Retailer 22
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$3,157 USD
£2,486 GBP
View
B
Retailer 23
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$5,170 USD
View
B
Retailer 24
-
$6,310 USD
View
Most Expensive
Brilliant Earth
14090797Y · Oct 1
$7,010 USD
View
Price last confirmed 30 days ago
24 more retailers have this diamond
Prices start from $582 USDSave up to $5,728 USD

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
$582 USD