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Round|Natural|GIA

1.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2557356180

Certificate GIA 2557356180

Diamond specifications and retailer prices

From $5,679 NZD
As of November 6, 2026
Save $7,890 NZD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $13,569 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557356180. Listed at 7 retailers as of November 5, 2026, with prices from $5,679 to $13,569, a $7,890 spread on the same certified stone. NZ Jewellers lists it at $13,569. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2557356180
Dimensions7.24 × 7.28 × 4.50 mm
L/W Ratio1.01
Key to symbols
Feather, Crystal, Needle, Pinpoint
Top View
7.24 mm7.28 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557356180
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.0%

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: $13,569 NZD|Low: $5,679 NZD|High: $14,505 NZD|Avg: $9,401 NZD|-6.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$5,679 NZD
Retailer 3$7,160 NZD
Retailer 6$7,787 NZD
Retailer 7$7,787 NZD
Retailer 4$8,823 NZD
Retailer 5$12,371 NZD
NZ Jewellers$13,569 NZD

33 data points across 7 retailers

7 retailers$5,679 NZD to $13,569 NZD

A
Cheapest Retailer
-
$5,679 NZD
A
Retailer 2
-
$7,160 NZD
View
A
Retailer 3
-
$7,787 NZD
View
A
Retailer 4
-
$7,787 NZD
View
A
Retailer 5
-
$8,823 NZD
View
B+
Retailer 6
-
$12,371 NZD
View
Most Expensive
B
NZ Jewellers
790f15a6-c248-4e9e-9255-f1ed77dfcb14 · Nov 5
$13,569 NZD
$7,522 USD
View
6 more retailers have this diamond
Prices start from $5,679 NZDSave up to $7,890 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
$5,679 NZD