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Heart|Natural|IGI

1.50ct E SI1 Heart Natural Diamond

VG • E/SI1 • IGI 610305750

Shape and cutting style on the report: Heart brilliant

Certificate IGI 610305750

Diamond specifications and retailer prices

From $6,335 NZD
As of November 5, 2026
Save $2,453 NZD (28%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $15,793 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 610305750. Listed at 9 retailers as of November 5, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 610305750
Dimensions6.78 × 7.79 × 4.67 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.78 mm7.79 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 610305750
Side View
Table 62.0%Crown 36.4°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.9%

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 5
Current: $7,428 NZD|Low: $6,335 NZD|High: $14,612 NZD|Avg: $9,382 NZD|-17.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$6,335 NZD
Retailer 4$6,864 NZD
Retailer 6$7,194 NZD
Retailer 1$7,428 NZD
Retailer 7$8,366 NZD
Retailer 3$8,789 NZD
Retailer 9$9,065 NZD
Retailer 10$9,065 NZD
Retailer 2$10,814 NZD
Retailer 8$14,572 NZD

26 data points across 10 retailers

9 retailers$6,335 NZD to $8,789 NZD

A
Cheapest Retailer
-
$6,335 NZD
A
Retailer 2
-
$6,864 NZD
View
Retailer 3
-
$7,194 NZD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$7,428 NZD
View
A
Retailer 5
-
$7,465 NZD
View
B+
Retailer 6
-
$8,789 NZD
View
Retailer 7
-
$9,065 NZD
View
Price last confirmed 29 days ago
Retailer 8
-
$10,459 NZD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
2ddb6b87-c8e4-4948-943a-ceaa3f8773c6 · Sep 30
$15,793 NZD
$8,755 USD
View
Price last confirmed 37 days ago
8 more retailers have this diamond
Prices start from $6,335 NZDSave up to $2,453 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
1.50ct Heart
$6,335 NZD