CaratHunter
Plans
Round|Natural|IGI

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 815638123

Shape and cutting style on the report: Round brilliant

Certificate IGI 815638123

Diamond specifications and retailer prices

From €398 EUR
$445 USD
As of October 28, 2026
Save €1,129 EUR (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,527 EUR at NZ Jewellers · As of October 30, 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 IGI 815638123. Listed at 8 retailers as of October 28, 2026, with prices from €398 to €1,527, a €1,129 spread on the same certified stone. NZ Jewellers lists it at €1,527. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 815638123
Dimensions5.31 × 5.34 × 3.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.31 mm5.34 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815638123
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.3%

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 28
Current: €1,527 EUR|Low: €398 EUR|High: €1,527 EUR|Avg: €680 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5€398 EUR
Retailer 4€429 EUR
Retailer 2€517 EUR
Retailer 8€525 EUR
Retailer 9€585 EUR
Retailer 7€586 EUR
Retailer 6€594 EUR
Retailer 3€921 EUR
NZ Jewellers€1,527 EUR

27 data points across 9 retailers

8 retailers€398 EUR to €1,527 EUR

A
Cheapest Retailer
-
€398 EUR
$445 USD
A
Retailer 2
-
€429 EUR
$479 USD
View
B+
Retailer 3
-
€517 EUR
£455 GBP
View
B+
Retailer 4
-
€525 EUR
$586 USD
View
B+
Retailer 5
-
€585 EUR
$654 USD
View
B+
Retailer 6
-
€586 EUR
$655 USD
View
Retailer 7
-
€921 EUR
£810 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
acccbea3-923f-4cf0-bcdc-3f6ec6a8bf14 · Oct 30
€1,527 EUR
$1,706 USD
View
7 more retailers have this diamond
Prices start from €398 EURSave up to €1,129 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
€398 EUR