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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 2566373367

Certificate GIA 2566373367

Diamond specifications and retailer prices

From €1,307 EUR
As of November 6, 2026
Save €2,949 EUR (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,256 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566373367. Listed at 11 retailers as of November 5, 2026, with prices from €1,307 to €4,256, a €2,949 spread on the same certified stone. NZ Jewellers lists it at €4,256. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566373367
Dimensions6.48 × 4.98 × 3.56 mm
L/W Ratio1.30
Girdle conditionThick to Very Thick
Key to symbols
Feather, Crystal
Top View
6.48 mm4.98 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566373367
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.4%

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: €4,256 EUR|Low: €1,295 EUR|High: €4,256 EUR|Avg: €2,039 EUR|+12.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10€1,307 EUR
Retailer 4€1,313 EUR
Retailer 3€1,391 EUR
Retailer 11€1,631 EUR
Retailer 5€1,693 EUR
Retailer 9€1,745 EUR
Retailer 6€1,816 EUR
Retailer 8€1,825 EUR
Retailer 2€2,171 EUR
Retailer 7€3,049 EUR
NZ Jewellers€4,256 EUR

31 data points across 11 retailers

11 retailers€1,307 EUR to €4,256 EUR

A
Cheapest Retailer
-
€1,307 EUR
A
Retailer 2
-
€1,313 EUR
View
A
Retailer 3
-
€1,391 EUR
View
Final sale: no returns
B+
Retailer 4
-
€1,631 EUR
View
B+
Retailer 5
-
€1,693 EUR
View
B+
Retailer 6
-
€1,745 EUR
View
B+
Retailer 7
-
€1,816 EUR
View
B+
Retailer 8
-
€1,825 EUR
View
B+
Retailer 9
-
€2,171 EUR
View
B
Retailer 10
-
€3,049 EUR
View
Most Expensive
C
NZ Jewellers
147dd911-f053-4819-bf74-292a933c0f11 · Nov 5
€4,256 EUR
$4,752 USD
View
10 more retailers have this diamond
Prices start from €1,307 EURSave up to €2,949 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
1.00ct Radiant
€1,307 EUR