Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2557722338

Certificate GIA 2557722338

Diamond specifications and retailer prices

From €416 EUR
As of November 6, 2026
Save €1,459 EUR (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,876 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557722338. Listed at 20 retailers as of November 4, 2026, with prices from €416 to €1,876, a €1,459 spread on the same certified stone. NZ Jewellers lists it at €1,876. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557722338
Dimensions5.06 × 5.09 × 3.18 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.06 mm5.09 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557722338
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.6%

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 6
Current: €769 EUR|Low: €416 EUR|High: €1,397 EUR|Avg: €837 EUR|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7€416 EUR
Retailer 6€712 EUR
Retailer 2€726 EUR
Retailer 1€769 EUR
Retailer 3€794 EUR
Retailer 8€898 EUR
Retailer 4€923 EUR
Retailer 5€1,379 EUR

38 data points across 8 retailers

20 retailers€416 EUR to €1,876 EUR

A
Cheapest Retailer
-
€416 EUR
Final sale: no returns
A
Retailer 2
-
€542 EUR
View
A
Retailer 3
-
€559 EUR
View
A
Retailer 4
-
€564 EUR
View
Retailer 5
-
€583 EUR
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€583 EUR
View
B+
Retailer 7
-
€625 EUR
View
B+
Retailer 8
-
€641 EUR
View
B+
Retailer 9
-
€662 EUR
View
B
Retailer 10
-
€712 EUR
View
B+
Retailer 11
-
€715 EUR
View
B+
Retailer 12
-
€726 EUR
View
B+
Retailer 13
-
€757 EUR
View
B+
Retailer 14
-
€769 EUR
View
B+
Retailer 15
-
€794 EUR
View
Retailer 16
-
€898 EUR
View
Price last confirmed 33 days ago
B
Retailer 17
-
€923 EUR
View
B
Retailer 18
-
€1,379 EUR
View
B
Retailer 19
-
€1,716 EUR
View
Most Expensive
B
NZ Jewellers
c7a7a72c-47a7-450f-9917-1a85d6288ba6 · Nov 4
€1,876 EUR
$2,094 USD
View
19 more retailers have this diamond
Prices start from €416 EURSave up to €1,459 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
€416 EUR