Round|Natural|GIA

0.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1545727521

Certificate GIA 1545727521

Diamond specifications and retailer prices

From $460 USD
As of November 6, 2026
Save $987 USD (68%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,068 USD at NZ Jewellers · As of September 11, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545727521. Listed at 22 retailers as of November 4, 2026, with a 215% 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1545727521
Dimensions5.07 × 5.09 × 3.11 mm
L/W Ratio1.00
Key to symbols
Feather, Twinning Wisp
Top View
5.07 mm5.09 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545727521
Side View
Table 58.0%Crown 34°Girdle: VTK-VTKPavilion 40.8°Culet: NoneDepth 61.3%

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 6
Current: $1,968 USD|Low: $460 USD|High: $1,982 USD|Avg: $806 USD|-0.7%
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
November 6, 2026
Retailer 2$460 USD
Retailer 5$524 USD
Retailer 6$578 USD
Retailer 9$594 USD
Retailer 8$604 USD
Retailer 3$628 USD
Retailer 4$650 USD
Retailer 17$676 USD
Retailer 18$676 USD
Retailer 7$724 USD
Retailer 10$754 USD
Retailer 16$759 USD
Retailer 12$761 USD
Retailer 13$774 USD
Retailer 11$807 USD
Retailer 14$834 USD
Retailer 15$1,447 USD
NZ Jewellers$1,968 USD

22 data points across 18 retailers

22 retailers$460 USD to $1,447 USD

A
Cheapest Retailer
-
$460 USD
A
Retailer 2
-
$524 USD
View
A
Retailer 3
-
$578 USD
View
Final sale: no returns
A
Retailer 4
-
$594 USD
View
A
Retailer 5
-
$604 USD
View
Retailer 6
-
$628 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$628 USD
View
A
Retailer 8
-
$650 USD
View
Retailer 9
-
$676 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$676 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$724 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$754 USD
View
B+
Retailer 13
-
$759 USD
View
Retailer 14
-
$761 USD
View
Price last confirmed 60 days ago
B+
Retailer 15
-
$761 USD
View
B+
Retailer 16
-
$774 USD
View
B+
Retailer 17
-
$807 USD
View
B+
Retailer 18
-
$834 USD
View
B
Retailer 19
-
$1,447 USD
View
Retailer 20
-
$1,968 USD
View
Price last confirmed 11 days ago
Retailer 21
-
$1,968 USD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
c37556e1-65eb-46b2-9c16-fc722d77a7a1 · Sep 11
$2,068 USD
View
Price last confirmed 56 days ago
21 more retailers have this diamond
Prices start from $460 USDSave up to $987 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
$460 USD