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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5403991543

Certificate GIA 5403991543

Diamond specifications and retailer prices

From $5,703 NZD
As of November 4, 2026
Save $7,665 NZD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,614 NZD at NZ Jewellers · As of September 10, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5403991543. Listed at 23 retailers as of November 4, 2026, with a 134% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5403991543
Dimensions7.31 × 7.25 × 4.56 mm
L/W Ratio1.01
Top View
7.31 mm7.25 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5403991543
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 4
Current: $13,368 NZD|Low: $5,136 NZD|High: $13,614 NZD|Avg: $8,451 NZD|-1.8%
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 14$5,703 NZD
Retailer 6$5,897 NZD
Retailer 4$5,899 NZD
Retailer 7$5,995 NZD
Retailer 8$6,052 NZD
Retailer 5$6,118 NZD
Retailer 16$6,938 NZD
Retailer 3$6,952 NZD
Retailer 17$6,952 NZD
Retailer 19$6,952 NZD
Retailer 9$7,423 NZD
Retailer 18$7,566 NZD
Retailer 2$7,678 NZD
Retailer 10$8,021 NZD
Retailer 13$8,110 NZD
Retailer 12$8,674 NZD
Retailer 11$11,095 NZD
Retailer 15$12,221 NZD
NZ Jewellers$13,368 NZD

43 data points across 19 retailers

23 retailers$5,703 NZD to $13,368 NZD

A
Cheapest Retailer
-
$5,703 NZD
A
Retailer 2
-
$5,897 NZD
View
A
Retailer 3
-
$5,899 NZD
View
A
Retailer 4
-
$5,995 NZD
View
A
Retailer 5
-
$6,052 NZD
View
A
Retailer 6
-
$6,118 NZD
View
B+
Retailer 7
-
$6,938 NZD
View
B+
Retailer 8
-
$6,952 NZD
View
Retailer 9
-
$6,952 NZD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$6,952 NZD
View
Retailer 11
-
$7,080 NZD
View
Price last confirmed 56 days ago
Retailer 12
-
$7,224 NZD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$7,423 NZD
View
B+
Retailer 14
-
$7,566 NZD
View
B+
Retailer 15
-
$7,678 NZD
View
B+
Retailer 16
-
$8,021 NZD
View
B+
Retailer 17
-
$8,110 NZD
View
Retailer 18
-
$8,169 NZD
View
Price last confirmed 60 days ago
B+
Retailer 19
-
$8,674 NZD
View
B
Retailer 20
-
$11,095 NZD
View
B
Retailer 21
-
$12,221 NZD
View
B
Retailer 22
-
$13,368 NZD
View
Most Expensive
NZ Jewellers
b87281be-c421-4565-b3fd-f27d96f175c9 · Sep 10
$13,614 NZD
$7,653 USD
View
Price last confirmed 56 days ago
22 more retailers have this diamond
Prices start from $5,703 NZDSave up to $7,665 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
$5,703 NZD