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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 €521 EUR
$582 USD
As of October 30, 2026
Save €5,127 EUR (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €6,275 EUR 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: €2,810 EUR|Low: €500 EUR|High: €2,844 EUR|Avg: €1,338 EUR|-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€521 EUR
Retailer 14€584 EUR
Retailer 3€646 EUR
Retailer 15€646 EUR
Retailer 10€765 EUR
Retailer 8€814 EUR
Retailer 6€956 EUR
Retailer 9€1,066 EUR
Retailer 11€1,507 EUR
Retailer 13€1,546 EUR
Retailer 12€1,549 EUR
Retailer 5€1,876 EUR
Retailer 7€2,061 EUR
Retailer 2€2,458 EUR
Retailer 1€2,810 EUR

35 data points across 15 retailers

25 retailers€521 EUR to €5,648 EUR

A
Cheapest Retailer
-
€521 EUR
$582 USD
A
Retailer 2
-
€583 EUR
$651 USD
View
Final sale: no returns
A
Retailer 3
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€584 EUR
$652 USD
View
A
Retailer 4
-
€646 EUR
$722 USD
View
Retailer 5
-
€646 EUR
$722 USD
View
Price last confirmed 16 days ago
A
Retailer 6
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€765 EUR
$855 USD
View
A
Retailer 7
-
€814 EUR
£716 GBP
View
A
Retailer 8
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€836 EUR
HK$7,300 HKD
View
A
Retailer 9
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€908 EUR
$1,014 USD
View
A
Retailer 10
-
€956 EUR
$1,068 USD
View
A
Retailer 11
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€1,066 EUR
£938 GBP
View
A
Retailer 12
-
€1,101 EUR
$1,230 USD
View
B+
Retailer 13
-
€1,507 EUR
A$2,590 AUD
View
B+
Retailer 14
-
€1,546 EUR
$1,727 USD
View
B+
Retailer 15
-
€1,549 EUR
ZAR 27,957 ZAR
View
B+
Retailer 16
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€1,876 EUR
$2,096 USD
View
B+
Retailer 17
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€2,061 EUR
$2,303 USD
View
B+
Retailer 18
-
€2,144 EUR
$2,396 USD
View
B
Retailer 19
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€2,406 EUR
$2,688 USD
View
B
Retailer 20
-
€2,431 EUR
SGD 3,670 SGD
View
Retailer 21
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€2,458 EUR
A$4,224 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
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€2,810 EUR
£2,472 GBP
View
B
Retailer 23
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€4,628 EUR
$5,170 USD
View
B
Retailer 24
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€5,648 EUR
$6,310 USD
View
Most Expensive
Brilliant Earth
14090797Y · Oct 1
€6,275 EUR
$7,010 USD
View
Price last confirmed 31 days ago
24 more retailers have this diamond
Prices start from €521 EURSave up to €5,127 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
3.51ct Heart
€521 EUR