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Heart|Natural|GIA

1.50ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6441485712

Certificate GIA 6441485712

Diamond specifications and retailer prices

From $4,221 NZD
$2,379 USD
As of November 1, 2026
Save $5,421 NZD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,032 NZD at NZ Jewellers · As of October 24, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441485712. Listed at 13 retailers as of October 26, 2026, with a 128% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.94°
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 6441485712
Dimensions6.84 × 7.82 × 4.63 mm
L/W Ratio1.14
Top View
6.84 mm7.82 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6441485712
Side View
Table 60.0%Crown 35.94°Girdle: MED-THKPavilion 38.3°Culet: NoneDepth 59.2%

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: $10,032 NZD|Low: $4,013 NZD|High: $10,032 NZD|Avg: $6,205 NZD
NZ Jewellers
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 27, 2026
Retailer 14$4,221 NZD
Retailer 17$4,516 NZD
Retailer 3$4,659 NZD
Retailer 15$4,815 NZD
Retailer 4$5,216 NZD
Retailer 11$5,216 NZD
Retailer 12$5,417 NZD
Retailer 16$5,683 NZD
Retailer 10$5,766 NZD
Retailer 6$5,997 NZD
Retailer 7$5,997 NZD
Retailer 2$6,077 NZD
Retailer 5$6,192 NZD
Retailer 9$7,551 NZD
Retailer 8$7,909 NZD
Retailer 13$9,642 NZD
NZ Jewellers$10,032 NZD

34 data points across 17 retailers

13 retailers$4,221 NZD to $9,642 NZD

A
Cheapest Retailer
-
$4,221 NZD
$2,379 USD
A
Retailer 2
-
$4,516 NZD
$2,545 USD
View
A
Retailer 3
-
$4,659 NZD
$2,626 USD
View
Retailer 4
-
$5,216 NZD
$2,940 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$5,417 NZD
$3,053 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$5,683 NZD
$3,203 USD
View
A
Retailer 7
-
$5,766 NZD
£2,559 GBP
View
B+
Retailer 8
-
$5,997 NZD
$3,380 USD
View
B+
Retailer 9
-
$5,997 NZD
$3,380 USD
View
B+
Retailer 10
-
$6,077 NZD
$3,425 USD
View
B+
Retailer 11
-
$6,192 NZD
$3,490 USD
View
B
Retailer 12
-
$9,642 NZD
£4,279 GBP
View
Most Expensive
NZ Jewellers
7e745e99-e91b-4681-9880-e0dd1fe472f5 · Oct 24
$10,032 NZD
$5,654 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $4,221 NZDSave up to $5,421 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
$4,221 NZD