Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555724521

Certificate GIA 6555724521

Diamond specifications and retailer prices

From $465 USD
As of November 4, 2026
Save $1,629 USD (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,094 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555724521. Listed at 21 retailers as of November 4, 2026, with prices from $465 to $2,094, a $1,629 spread on the same certified stone. NZ Jewellers lists it at $2,094. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555724521
Dimensions5.06 × 5.10 × 3.14 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.06 mm5.10 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555724521
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.8%

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 4
Current: $811 USD|Low: $423 USD|High: $1,560 USD|Avg: $878 USD|+5.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$465 USD
Retailer 8$630 USD
Retailer 5$795 USD
Retailer 1$811 USD
Retailer 2$887 USD
Retailer 7$1,003 USD
Retailer 3$1,030 USD
Retailer 4$1,541 USD

43 data points across 8 retailers

21 retailers$465 USD to $2,094 USD

A
Cheapest Retailer
-
$465 USD
Final sale: no returns
A
Retailer 2
-
$605 USD
View
Retailer 3
-
$620 USD
View
Price last confirmed 43 days ago
A
Retailer 4
-
$624 USD
View
A
Retailer 5
-
$630 USD
View
Retailer 6
-
$651 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$651 USD
View
B+
Retailer 8
-
$698 USD
View
B+
Retailer 9
-
$716 USD
View
B+
Retailer 10
-
$739 USD
View
B
Retailer 11
-
$795 USD
View
B+
Retailer 12
-
$798 USD
View
B+
Retailer 13
-
$811 USD
View
B+
Retailer 14
-
$845 USD
View
B+
Retailer 15
-
$887 USD
View
B+
Retailer 16
-
$929 USD
View
Retailer 17
-
$1,003 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$1,030 USD
View
B
Retailer 19
-
$1,541 USD
View
B
Retailer 20
-
$1,916 USD
View
Most Expensive
B
NZ Jewellers
90ad359f-4180-4cf8-a382-056f606b9d32 · Nov 4
$2,094 USD
View
20 more retailers have this diamond
Prices start from $465 USDSave up to $1,629 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
$465 USD