Round|Natural|GIA

0.50ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 1289573368

Certificate GIA 1289573368

Diamond specifications and retailer prices

From $416 USD
As of October 31, 2026
Save $1,467 USD (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,883 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1289573368. Listed at 22 retailers as of October 30, 2026, with prices from $416 to $1,883, a $1,467 spread on the same certified stone. NZ Jewellers lists it at $1,883. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1289573368
Dimensions5.18 × 5.16 × 3.07 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Culet sizeNone
Key to symbols
Pinpoint
Top View
5.18 mm5.16 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1289573368
Side View
Table 61.0%Crown 32.5°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 59.3%

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: Oct 31
Current: $728 USD|Low: $416 USD|High: $1,403 USD|Avg: $772 USD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$416 USD
Retailer 4$444 USD
Retailer 3$647 USD
Retailer 5$680 USD
Retailer 2$693 USD
Retailer 1$728 USD
Retailer 11$786 USD
Retailer 7$809 USD
Retailer 10$903 USD
Retailer 6$927 USD
Retailer 8$1,388 USD

34 data points across 11 retailers

22 retailers$416 USD to $1,883 USD

A
Cheapest Retailer
-
$416 USD
Final sale: no returns
A
Retailer 2
-
$444 USD
₹42,267 INR
View
Retailer 3
-
$600 USD
View
Price last confirmed 44 days ago
B+
Retailer 4
-
$600 USD
View
Retailer 5
-
$615 USD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$647 USD
View
B
Retailer 7
-
$647 USD
View
B
Retailer 8
-
$680 USD
View
B
Retailer 9
-
$693 USD
View
B
Retailer 10
-
$693 USD
View
Retailer 11
-
$693 USD
View
Price last confirmed 39 days ago
B
Retailer 12
-
$711 USD
View
B
Retailer 13
-
$728 USD
£573 GBP
View
B
Retailer 14
-
$732 USD
View
Retailer 15
-
$786 USD
£619 GBP
View
Price last confirmed 31 days ago
B
Retailer 16
-
$809 USD
€770 EUR
View
B
Retailer 17
-
$831 USD
View
Retailer 18
-
$903 USD
A$1,389 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$927 USD
ZAR 14,972 ZAR
View
B
Retailer 20
-
$1,388 USD
£1,093 GBP
View
Retailer 21
-
$1,883 USD
View
Price last confirmed 40 days ago
Most Expensive
C
NZ Jewellers
e42d89bc-f602-48c9-aa84-0795d9f5997c · Oct 30
$1,883 USD
View
21 more retailers have this diamond
Prices start from $416 USDSave up to $1,467 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
$416 USD