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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2564538320

Certificate GIA 2564538320

Diamond specifications and retailer prices

From €351 EUR
As of November 5, 2026
Save €1,083 EUR (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,434 EUR 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564538320. Listed at 17 retailers as of November 4, 2026, with prices from €351 to €1,434, a €1,083 spread on the same certified stone. NZ Jewellers lists it at €1,434. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2564538320
Dimensions5.15 × 5.11 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
5.15 mm5.11 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564538320
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.0%

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 5
Current: €1,434 EUR|Low: €351 EUR|High: €1,434 EUR|Avg: €642 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7€351 EUR
Retailer 9€441 EUR
Retailer 3€457 EUR
Retailer 11€492 EUR
Retailer 12€492 EUR
Retailer 4€527 EUR
Retailer 5€564 EUR
Retailer 2€588 EUR
Retailer 6€679 EUR
Retailer 8€708 EUR
Retailer 10€1,055 EUR
NZ Jewellers€1,434 EUR

26 data points across 12 retailers

17 retailers€351 EUR to €1,434 EUR

A
Cheapest Retailer
-
€351 EUR
A
Retailer 2
-
€388 EUR
View
A
Retailer 3
-
€410 EUR
View
A
Retailer 4
-
€441 EUR
View
A
Retailer 5
-
€457 EUR
View
B+
Retailer 6
-
€492 EUR
View
Retailer 7
-
€492 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€527 EUR
View
B+
Retailer 9
-
€564 EUR
View
B+
Retailer 10
-
€574 EUR
View
B+
Retailer 11
-
€584 EUR
View
B+
Retailer 12
-
€588 EUR
View
B
Retailer 13
-
€637 EUR
View
B+
Retailer 14
-
€679 EUR
View
B
Retailer 15
-
€708 EUR
View
B
Retailer 16
-
€1,055 EUR
View
Most Expensive
B
NZ Jewellers
4b735c9f-ad37-46e8-926f-56435415096d · Nov 4
€1,434 EUR
$1,609 USD
View
16 more retailers have this diamond
Prices start from €351 EURSave up to €1,083 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
€351 EUR