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Heart|Lab Grown|IGI

1.58ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG526266743

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG526266743

Diamond specifications and retailer prices

From $572 NZD
$322 USD
As of November 1, 2026
Save $3,101 NZD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,673 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526266743 or 526266743. Listed at 9 retailers as of October 31, 2026, with prices from $572 to $3,673, a $3,101 spread on the same certified stone. Do Amore Diamonds lists it at $3,673. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.58
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526266743
Dimensions7.20 × 7.95 × 4.86 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.20 mm7.95 mm1.58 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526266743
Side View
Table 62.5%Crown 41.6°Girdle: MED-STKPavilion 44°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
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: Nov 1
Current: $3,673 NZD|Low: $318 NZD|High: $3,673 NZD|Avg: $1,260 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13$318 NZD
Retailer 10$572 NZD
Retailer 11$637 NZD
Retailer 8$690 NZD
Retailer 12$701 NZD
Retailer 3$790 NZD
Retailer 6$838 NZD
Retailer 9$1,085 NZD
Retailer 5$1,098 NZD
Retailer 7$1,529 NZD
Retailer 2$2,098 NZD
Retailer 4$2,410 NZD
Do Amore Diamonds$3,673 NZD

16 data points across 13 retailers

9 retailers$572 NZD to $3,673 NZD

A
Cheapest Retailer
-
$572 NZD
$322 USD
B+
Retailer 2
-
$637 NZD
$359 USD
View
A
Retailer 3
-
$690 NZD
$389 USD
View
A
Retailer 4
-
$701 NZD
$395 USD
View
A
Retailer 5
-
$838 NZD
€450 EUR
View
B+
Retailer 6
-
$1,085 NZD
$612 USD
View
B
Retailer 7
-
$1,529 NZD
$862 USD
View
B
Retailer 8
-
$2,098 NZD
£931 GBP
View
Most Expensive
B
Do Amore Diamonds
27-300243FD5 · Oct 31
$3,673 NZD
$2,070 USD
View
8 more retailers have this diamond
Prices start from $572 NZDSave up to $3,101 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
$572 NZD