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Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556999425

Certificate GIA 2556999425

Diamond specifications and retailer prices

From €380 EUR
As of November 6, 2026
Save €1,251 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,631 EUR at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556999425. Listed at 16 retailers as of November 4, 2026, with prices from €380 to €1,631, a €1,251 spread on the same certified stone. NZ Jewellers lists it at €1,631. 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

0.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556999425
Dimensions5.22 × 5.26 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.22 mm5.26 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556999425
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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: Nov 6
Current: €380 EUR|Low: €326 EUR|High: €1,215 EUR|Avg: €644 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1€380 EUR
Retailer 5€479 EUR
Retailer 6€560 EUR
Retailer 7€600 EUR
Retailer 2€634 EUR
Retailer 3€691 EUR
Retailer 4€1,201 EUR

42 data points across 7 retailers

16 retailers€380 EUR to €1,631 EUR

A
Cheapest Retailer
-
€380 EUR
A
Retailer 2
-
€479 EUR
View
Final sale: no returns
Retailer 3
-
€520 EUR
View
Price last confirmed 44 days ago
Retailer 4
-
€520 EUR
View
Price last confirmed 60 days ago
B+
Retailer 5
-
€520 EUR
View
Retailer 6
-
€538 EUR
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€560 EUR
View
Retailer 8
-
€600 EUR
View
Price last confirmed 60 days ago
Retailer 9
-
€600 EUR
View
Price last confirmed 45 days ago
B+
Retailer 10
-
€600 EUR
View
B+
Retailer 11
-
€634 EUR
View
B+
Retailer 12
-
€691 EUR
View
B
Retailer 13
-
€1,201 EUR
View
Retailer 14
-
€1,631 EUR
View
Price last confirmed 46 days ago
Retailer 15
-
€1,631 EUR
View
Price last confirmed 69 days ago
Most Expensive
B
NZ Jewellers
bbb91b0d-06a8-4b1f-942b-677ca9ea70bc · Nov 4
€1,631 EUR
$1,821 USD
View
15 more retailers have this diamond
Prices start from €380 EURSave up to €1,251 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
0.55ct Round
€380 EUR