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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2537064163

Certificate GIA 2537064163

Diamond specifications and retailer prices

From $9,606 NZD
As of November 1, 2026
Save $11,868 NZD (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $21,474 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537064163. Listed at 27 retailers as of November 1, 2026, with prices from $9,606 to $21,474, a $11,868 spread on the same certified stone. NZ Jewellers lists it at $21,474. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2537064163
Dimensions7.33 × 7.39 × 4.50 mm
L/W Ratio1.01
Star length50%
Top View
7.33 mm7.39 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537064163
Side View
Table 57.0%Crown 32°Girdle: Medium to Slightly ThickPavilion 41.4°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $21,474 NZD|Low: $9,606 NZD|High: $21,474 NZD|Avg: $12,425 NZD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
November 6, 2026
Retailer 4$9,606 NZD
Retailer 7$9,730 NZD
Retailer 8$9,860 NZD
Retailer 14$10,145 NZD
Retailer 26$10,154 NZD
Retailer 9$10,279 NZD
Retailer 15$10,735 NZD
Retailer 3$10,805 NZD
Retailer 20$11,105 NZD
Retailer 17$11,368 NZD
Retailer 10$11,453 NZD
Retailer 5$11,632 NZD
Retailer 6$11,632 NZD
Retailer 11$11,632 NZD
Retailer 18$11,844 NZD
Retailer 25$11,846 NZD
Retailer 13$12,110 NZD
Retailer 27$12,461 NZD
Retailer 19$12,681 NZD
Retailer 2$13,132 NZD
Retailer 16$13,132 NZD
Retailer 12$13,421 NZD
Retailer 21$13,639 NZD
Retailer 22$15,665 NZD
Retailer 24$18,614 NZD
Retailer 23$18,863 NZD
NZ Jewellers$21,474 NZD

31 data points across 27 retailers

27 retailers$9,606 NZD to $21,474 NZD

A
Cheapest Retailer
-
$9,606 NZD
A
Retailer 2
-
$9,730 NZD
View
A
Retailer 3
-
$9,860 NZD
View
B+
Retailer 4
-
$10,145 NZD
View
B+
Retailer 5
-
$10,154 NZD
View
B+
Retailer 6
-
$10,279 NZD
View
B+
Retailer 7
-
$10,735 NZD
View
Final sale: no returns
B+
Retailer 8
-
$10,805 NZD
View
B+
Retailer 9
-
$11,105 NZD
View
B+
Retailer 10
-
$11,368 NZD
View
B+
Retailer 11
-
$11,453 NZD
View
Retailer 12
-
$11,632 NZD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$11,632 NZD
View
B+
Retailer 14
-
$11,632 NZD
View
Retailer 15
-
$11,844 NZD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
$11,846 NZD
View
B+
Retailer 17
-
$12,110 NZD
View
Retailer 18
-
$12,461 NZD
View
Price last confirmed 15 days ago
B
Retailer 19
-
$12,681 NZD
View
B+
Retailer 20
-
$13,132 NZD
View
B
Retailer 21
-
$13,132 NZD
View
B
Retailer 22
-
$13,421 NZD
View
B+
Retailer 23
-
$13,639 NZD
View
B
Retailer 24
-
$15,665 NZD
View
B
Retailer 25
-
$18,614 NZD
View
B
Retailer 26
-
$18,863 NZD
View
Most Expensive
B
NZ Jewellers
7b07b6b6-6dda-4fb1-b157-9c3c62e51643 · Nov 5
$21,474 NZD
$11,904 USD
View
26 more retailers have this diamond
Prices start from $9,606 NZDSave up to $11,868 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 Round
$9,606 NZD