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Heart|Lab Grown|IGI

1.58ct E VVS1 Heart Lab Grown Diamond

EX • E/VVS1 • IGI LG671487121

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG671487121

Diamond specifications and retailer prices

From $546 NZD
$308 USD
As of October 30, 2026
Save $1,999 NZD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,826 NZD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.58ct lab-grown heart diamond

This 1.58ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG671487121 or 671487121. Listed at 18 retailers as of October 30, 2026, with a 366% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671487121
Dimensions7.02 × 8.19 × 4.86 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.02 mm8.19 mm1.58 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671487121
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.3%

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: $4,826 NZD|Low: $546 NZD|High: $4,968 NZD|Avg: $1,590 NZD|-2.9%
Brilliant Earth
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 17$546 NZD
Retailer 6$598 NZD
Retailer 15$607 NZD
Retailer 16$644 NZD
Retailer 13$887 NZD
Retailer 3$1,001 NZD
Retailer 11$1,042 NZD
Retailer 2$1,065 NZD
Retailer 8$1,207 NZD
Retailer 7$1,208 NZD
Retailer 10$1,409 NZD
Retailer 14$1,863 NZD
Retailer 9$2,039 NZD
Retailer 5$2,331 NZD
Retailer 12$2,434 NZD
Retailer 4$2,546 NZD
Brilliant Earth$4,826 NZD

33 data points across 17 retailers

18 retailers$546 NZD to $2,546 NZD

A
Cheapest Retailer
-
$546 NZD
$308 USD
Final sale: no returns
Retailer 2
-
$598 NZD
$337 USD
View
Price last confirmed 33 days ago
Retailer 3
-
$607 NZD
$342 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
$607 NZD
$342 USD
View
Retailer 5
-
$644 NZD
£286 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
$887 NZD
$500 USD
View
A
Retailer 7
-
$1,001 NZD
$564 USD
View
A
Retailer 8
-
$1,042 NZD
ZAR 9,485 ZAR
View
A
Retailer 9
-
$1,065 NZD
£473 GBP
View
B+
Retailer 10
-
$1,207 NZD
$680 USD
View
B+
Retailer 11
-
$1,208 NZD
$681 USD
View
B+
Retailer 12
-
$1,409 NZD
A$1,222 AUD
View
B
Retailer 13
-
$1,863 NZD
$1,050 USD
View
B
Retailer 14
-
$2,039 NZD
$1,149 USD
View
B
Retailer 15
-
$2,331 NZD
$1,314 USD
View
B+
Retailer 16
-
$2,434 NZD
£1,080 GBP
View
B
Retailer 17
-
$2,546 NZD
$1,435 USD
View
Most Expensive
Brilliant Earth
12892121A · Oct 16
$4,826 NZD
$2,720 USD
View
Price last confirmed 14 days ago
17 more retailers have this diamond
Prices start from $546 NZDSave up to $1,999 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
1.58ct Heart
$546 NZD