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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 $1,033 NZD
$582 USD
As of October 30, 2026
Save $10,163 NZD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $12,438 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,613 NZD|Low: $992 NZD|High: $5,638 NZD|Avg: $2,651 NZD|-1.0%
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$1,033 NZD
Retailer 14$1,157 NZD
Retailer 3$1,281 NZD
Retailer 15$1,281 NZD
Retailer 9$1,517 NZD
Retailer 1$1,613 NZD
Retailer 6$1,895 NZD
Retailer 8$2,113 NZD
Retailer 10$2,987 NZD
Retailer 13$3,064 NZD
Retailer 12$3,070 NZD
Retailer 5$3,719 NZD
Retailer 7$4,086 NZD
Retailer 2$4,872 NZD
Retailer 11$5,602 NZD

35 data points across 15 retailers

25 retailers$1,033 NZD to $11,196 NZD

A
Cheapest Retailer
-
$1,033 NZD
$582 USD
A
Retailer 2
-
$1,155 NZD
$651 USD
View
Final sale: no returns
A
Retailer 3
-
$1,157 NZD
$652 USD
View
A
Retailer 4
-
$1,281 NZD
$722 USD
View
Retailer 5
-
$1,281 NZD
$722 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$1,517 NZD
$855 USD
View
A
Retailer 7
-
$1,613 NZD
£716 GBP
View
A
Retailer 8
-
$1,658 NZD
HK$7,300 HKD
View
A
Retailer 9
-
$1,799 NZD
$1,014 USD
View
A
Retailer 10
-
$1,895 NZD
$1,068 USD
View
A
Retailer 11
-
$2,113 NZD
£938 GBP
View
A
Retailer 12
-
$2,182 NZD
$1,230 USD
View
B+
Retailer 13
-
$2,987 NZD
A$2,590 AUD
View
B+
Retailer 14
-
$3,064 NZD
$1,727 USD
View
B+
Retailer 15
-
$3,070 NZD
ZAR 27,957 ZAR
View
B+
Retailer 16
-
$3,719 NZD
$2,096 USD
View
B+
Retailer 17
-
$4,086 NZD
$2,303 USD
View
B+
Retailer 18
-
$4,251 NZD
$2,396 USD
View
B
Retailer 19
-
$4,769 NZD
$2,688 USD
View
B
Retailer 20
-
$4,819 NZD
SGD 3,670 SGD
View
Retailer 21
-
$4,872 NZD
A$4,224 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
-
$5,602 NZD
£2,486 GBP
View
B
Retailer 23
-
$9,173 NZD
$5,170 USD
View
B
Retailer 24
-
$11,196 NZD
$6,310 USD
View
Most Expensive
Brilliant Earth
14090797Y · Oct 1
$12,438 NZD
$7,010 USD
View
Price last confirmed 31 days ago
24 more retailers have this diamond
Prices start from $1,033 NZDSave up to $10,163 NZD

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
$1,033 NZD