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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6492040977

Certificate GIA 6492040977

Diamond specifications and retailer prices

From $9,337 NZD
As of November 6, 2026
Save $11,500 NZD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $20,837 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 6492040977. Listed at 21 retailers as of November 5, 2026, with prices from $9,337 to $20,837, a $11,500 spread on the same certified stone. NZ Jewellers lists it at $20,837. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6492040977
Dimensions7.36 × 7.31 × 4.47 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.36 mm7.31 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492040977
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $20,837 NZD|Low: $8,682 NZD|High: $20,837 NZD|Avg: $12,875 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
November 6, 2026
Retailer 10$9,337 NZD
Retailer 7$9,489 NZD
Retailer 8$10,419 NZD
Retailer 3$11,287 NZD
Retailer 9$11,287 NZD
Retailer 12$11,287 NZD
Retailer 2$11,752 NZD
Retailer 5$12,800 NZD
Retailer 11$13,024 NZD
Retailer 4$13,731 NZD
Retailer 6$18,306 NZD
NZ Jewellers$20,837 NZD

42 data points across 12 retailers

21 retailers$9,337 NZD to $20,837 NZD

B+
Cheapest Retailer
-
$9,337 NZD
B+
Retailer 2
-
$9,489 NZD
View
B
Retailer 3
-
$9,568 NZD
View
B+
Retailer 4
-
$9,844 NZD
View
B+
Retailer 5
-
$10,230 NZD
View
B
Retailer 6
-
$10,419 NZD
View
Final sale: no returns
B
Retailer 7
-
$10,425 NZD
View
B
Retailer 8
-
$10,506 NZD
View
B
Retailer 9
-
$11,287 NZD
View
Retailer 10
-
$11,287 NZD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$11,287 NZD
View
B
Retailer 12
-
$11,752 NZD
View
B
Retailer 13
-
$11,904 NZD
View
B
Retailer 14
-
$12,555 NZD
View
B
Retailer 15
-
$12,555 NZD
View
B
Retailer 16
-
$12,800 NZD
View
B
Retailer 17
-
$12,988 NZD
View
B
Retailer 18
-
$13,024 NZD
View
Retailer 19
-
$13,731 NZD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$18,306 NZD
View
Most Expensive
B
NZ Jewellers
685f6d57-6f08-4fdb-9fdc-7553c50ef302 · Nov 5
$20,837 NZD
$11,551 USD
View
20 more retailers have this diamond
Prices start from $9,337 NZDSave up to $11,500 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.

B+
1.50ct Round
$9,337 NZD