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Round|Natural|GIA

0.50ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 1289573368

Certificate GIA 1289573368

Diamond specifications and retailer prices

From €372 EUR
$416 USD
As of October 31, 2026
Save €1,313 EUR (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,685 EUR 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 €372 to €1,685, a €1,313 spread on the same certified stone. NZ Jewellers lists it at €1,685. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €397 EUR|Low: €372 EUR|High: €1,256 EUR|Avg: €704 EUR|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8€372 EUR
Retailer 1€397 EUR
Retailer 5€609 EUR
Retailer 2€620 EUR
Retailer 4€652 EUR
Retailer 10€704 EUR
Retailer 7€724 EUR
Retailer 9€808 EUR
Retailer 6€830 EUR
Retailer 3€1,241 EUR

34 data points across 10 retailers

22 retailers€372 EUR to €1,685 EUR

A
Cheapest Retailer
-
€372 EUR
$416 USD
Final sale: no returns
A
Retailer 2
-
€397 EUR
₹42,258 INR
View
Retailer 3
-
€537 EUR
$600 USD
View
Price last confirmed 45 days ago
B+
Retailer 4
-
€537 EUR
$600 USD
View
Retailer 5
-
€550 EUR
$615 USD
View
Price last confirmed 11 days ago
B
Retailer 6
-
€579 EUR
$647 USD
View
B
Retailer 7
-
€579 EUR
$647 USD
View
B
Retailer 8
-
€609 EUR
$680 USD
View
B
Retailer 9
-
€620 EUR
$693 USD
View
B
Retailer 10
-
€620 EUR
$693 USD
View
Retailer 11
-
€620 EUR
$693 USD
View
Price last confirmed 40 days ago
B
Retailer 12
-
€636 EUR
$711 USD
View
B
Retailer 13
-
€652 EUR
£573 GBP
View
B
Retailer 14
-
€655 EUR
$732 USD
View
Retailer 15
-
€704 EUR
£619 GBP
View
Price last confirmed 32 days ago
B
Retailer 16
-
€724 EUR
View
B
Retailer 17
-
€744 EUR
$831 USD
View
Retailer 18
-
€808 EUR
A$1,389 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
€830 EUR
ZAR 14,972 ZAR
View
B
Retailer 20
-
€1,241 EUR
£1,092 GBP
View
Retailer 21
-
€1,685 EUR
$1,883 USD
View
Price last confirmed 41 days ago
Most Expensive
C
NZ Jewellers
e42d89bc-f602-48c9-aa84-0795d9f5997c · Oct 30
€1,685 EUR
$1,883 USD
View
21 more retailers have this diamond
Prices start from €372 EURSave up to €1,313 EUR

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
€372 EUR