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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 $229 USD
As of November 5, 2026
Save $984 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,213 USD 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 $229 to $1,213, a $984 spread on the same certified stone. NZ Jewellers lists it at $1,213. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,213 USD|Low: $229 USD|High: $1,260 USD|Avg: $474 USD|-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$229 USD
Retailer 9$268 USD
Retailer 4$285 USD
Retailer 8$316 USD
Retailer 10$344 USD
Retailer 6$353 USD
Retailer 5$426 USD
Retailer 7$446 USD
Retailer 2$590 USD
NZ Jewellers$1,213 USD

44 data points across 10 retailers

10 retailers$229 USD to $1,213 USD

A
Cheapest Retailer
-
$229 USD
B+
Retailer 2
-
$268 USD
View
A
Retailer 3
-
$285 USD
View
A
Retailer 4
-
$316 USD
View
Retailer 5
-
$344 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$353 USD
View
B+
Retailer 7
-
$426 USD
View
B+
Retailer 8
-
$446 USD
View
B
Retailer 9
-
$590 USD
View
Most Expensive
C
NZ Jewellers
5dd9afd8-ad84-4deb-9949-85e81b670654 · Nov 4
$1,213 USD
View
9 more retailers have this diamond
Prices start from $229 USDSave up to $984 USD

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
$229 USD