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Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541674412

Certificate GIA 6541674412

Diamond specifications and retailer prices

From $5,148 NZD
As of November 6, 2026
Save $6,099 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,268 NZD at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541674412. Listed at 14 retailers as of November 4, 2026, with a 118% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 6541674412
Dimensions6.88 × 8.04 × 4.65 mm
L/W Ratio1.17
Top View
6.88 mm8.04 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541674412
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 42.1°Culet: NoneDepth 57.9%

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 6
Current: $6,483 NZD|Low: $5,080 NZD|High: $11,918 NZD|Avg: $7,479 NZD|-4.2%
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
November 6, 2026
Retailer 13$5,148 NZD
Retailer 2$6,223 NZD
Retailer 11$6,269 NZD
Retailer 10$6,458 NZD
Retailer 1$6,483 NZD
Retailer 7$6,510 NZD
Retailer 4$6,830 NZD
Retailer 6$6,979 NZD
Retailer 5$7,436 NZD
Retailer 3$7,649 NZD
Retailer 8$8,231 NZD
Retailer 12$10,786 NZD
Retailer 9$11,247 NZD

36 data points across 13 retailers

14 retailers$5,148 NZD to $11,247 NZD

A
Cheapest Retailer
-
$5,148 NZD
A
Retailer 2
-
$6,223 NZD
View
Final sale: no returns
B+
Retailer 3
-
$6,269 NZD
View
B+
Retailer 4
-
$6,458 NZD
View
B+
Retailer 5
-
$6,483 NZD
View
B+
Retailer 6
-
$6,510 NZD
View
B+
Retailer 7
-
$6,830 NZD
View
B+
Retailer 8
-
$6,979 NZD
View
Retailer 9
-
$7,436 NZD
View
Price last confirmed 30 days ago
B+
Retailer 10
-
$7,649 NZD
View
B+
Retailer 11
-
$8,231 NZD
View
B
Retailer 12
-
$10,786 NZD
View
B
Retailer 13
-
$11,247 NZD
View
Most Expensive
NZ Jewellers
090fd14f-f327-42ad-af8c-26d56e63b63f · Sep 25
$12,268 NZD
$6,801 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $5,148 NZDSave up to $6,099 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
$5,148 NZD