Round|Natural|GIA

0.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6502912503

Certificate GIA 6502912503

Diamond specifications and retailer prices

From $599 USD
As of November 2, 2026
Save $713 USD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,246 USD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502912503. Listed at 16 retailers as of November 1, 2026, with a 119% 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6502912503
Dimensions5.09 × 5.06 × 3.16 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.09 mm5.06 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6502912503
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.3%

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 2
Current: $847 USD|Low: $599 USD|High: $1,312 USD|Avg: $829 USD|+0.1%
Retailer 1
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
November 2, 2026
Retailer 3$599 USD
Retailer 10$649 USD
Retailer 2$675 USD
Retailer 12$699 USD
Retailer 11$758 USD
Retailer 5$790 USD
Retailer 6$790 USD
Retailer 13$804 USD
Retailer 1$847 USD
Retailer 8$855 USD
Retailer 14$902 USD
Retailer 7$1,012 USD
Retailer 4$1,086 USD
Retailer 9$1,312 USD

7 data points across 14 retailers

16 retailers$599 USD to $1,312 USD

A
Cheapest Retailer
-
$599 USD
Final sale: no returns
A
Retailer 2
-
$649 USD
View
B+
Retailer 3
-
$675 USD
View
B+
Retailer 4
-
$699 USD
View
B+
Retailer 5
-
$749 USD
View
B+
Retailer 6
-
$758 USD
View
B+
Retailer 7
-
$790 USD
View
B+
Retailer 8
-
$790 USD
View
B+
Retailer 9
-
$804 USD
View
B+
Retailer 10
-
$820 USD
View
B+
Retailer 11
-
$847 USD
£667 GBP
View
B+
Retailer 12
-
$855 USD
£673 GBP
View
B+
Retailer 13
-
$902 USD
£710 GBP
View
B
Retailer 14
-
$1,012 USD
€964 EUR
View
B
Retailer 15
-
$1,312 USD
£1,033 GBP
View
Most Expensive
NZ Jewellers
07fa4f46-aa76-4211-b36b-68fa8ef509da · Oct 30
$2,246 USD
View
Price under review
15 more retailers have this diamond
Prices start from $599 USDSave up to $713 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
$599 USD