Round|Natural|GIA

0.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 2427521846

Certificate GIA 2427521846

Diamond specifications and retailer prices

From $234 USD
As of November 5, 2026
Save $302 USD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,233 USD at NZ Jewellers · As of September 28, 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 2427521846. Listed at 8 retailers as of November 5, 2026, with a 129% 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

0.50
Carat
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2427521846
Dimensions5.04 × 5.08 × 3.20 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
5.04 mm5.08 mm0.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2427521846
Side View
Table 58.0%Crown 34.5°Girdle: STK-STKPavilion 41.8°Culet: NoneDepth 63.1%

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: $536 USD|Low: $234 USD|High: $597 USD|Avg: $372 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 2$234 USD
Retailer 5$281 USD
Retailer 4$347 USD
Retailer 3$446 USD
Retailer 1$536 USD

45 data points across 5 retailers

8 retailers$234 USD to $536 USD

A
Cheapest Retailer
-
$234 USD
B+
Retailer 2
-
$281 USD
View
Retailer 3
-
$322 USD
View
Price last confirmed 36 days ago
Retailer 4
-
$359 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$433 USD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$446 USD
View
B
Retailer 7
-
$536 USD
View
Most Expensive
NZ Jewellers
315668e2-20c6-4b9f-9f67-eab3941e6d00 · Sep 28
$1,233 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from $234 USDSave up to $302 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
$234 USD