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Round|Natural|GIA

0.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1548412118

Certificate GIA 1548412118

Diamond specifications and retailer prices

From $407 NZD
As of November 5, 2026
Save $1,750 NZD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,158 NZD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1548412118. Listed at 10 retailers as of November 4, 2026, with prices from $407 to $2,158, a $1,750 spread on the same certified stone. NZ Jewellers lists it at $2,158. 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

0.50
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1548412118
Dimensions5.01 × 5.06 × 3.19 mm
L/W Ratio1.01
Top View
5.01 mm5.06 mm0.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1548412118
Side View
Table 55.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 63.4%

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 5
Current: $2,158 NZD|Low: $407 NZD|High: $2,241 NZD|Avg: $843 NZD|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$407 NZD
Retailer 9$477 NZD
Retailer 4$507 NZD
Retailer 8$562 NZD
Retailer 10$612 NZD
Retailer 6$628 NZD
Retailer 5$758 NZD
Retailer 7$793 NZD
Retailer 2$1,050 NZD
NZ Jewellers$2,158 NZD

44 data points across 10 retailers

10 retailers$407 NZD to $2,158 NZD

A
Cheapest Retailer
-
$407 NZD
B+
Retailer 2
-
$477 NZD
View
A
Retailer 3
-
$507 NZD
View
A
Retailer 4
-
$562 NZD
View
Retailer 5
-
$612 NZD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$628 NZD
View
B+
Retailer 7
-
$758 NZD
View
B+
Retailer 8
-
$793 NZD
View
B
Retailer 9
-
$1,050 NZD
View
Most Expensive
C
NZ Jewellers
5dd9afd8-ad84-4deb-9949-85e81b670654 · Nov 4
$2,158 NZD
$1,213 USD
View
9 more retailers have this diamond
Prices start from $407 NZDSave up to $1,750 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
0.50ct Round
$407 NZD