Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1559567941

Certificate GIA 1559567941

Diamond specifications and retailer prices

From €1,725 EUR
As of November 6, 2026
22 retailers carry this diamond
Most expensive: €3,538 EUR at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559567941. Listed at 22 retailers as of November 6, 2026. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559567941
Dimensions6.34 × 6.38 × 3.94 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.38 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559567941
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NDepth 61.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: €3,538 EUR|Low: €1,416 EUR|High: €3,538 EUR|Avg: €1,843 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 26, 2026
Retailer 15€1,416 EUR
Retailer 13€1,417 EUR
Retailer 10€1,435 EUR
Retailer 6€1,450 EUR
Retailer 8€1,450 EUR
Retailer 16€1,488 EUR
Retailer 7€1,517 EUR
Retailer 12€1,523 EUR
Retailer 5€1,541 EUR
Retailer 9€1,673 EUR
Retailer 17€1,705 EUR
Retailer 2€1,777 EUR
Retailer 14€1,838 EUR
Retailer 4€1,877 EUR
Retailer 11€1,989 EUR
Retailer 18€2,311 EUR
Retailer 3€2,538 EUR
NZ Jewellers€3,538 EUR

32 data points across 18 retailers

22 retailers

Retailer 1
-
€1,416 EUR
Price last confirmed 13 days ago
Retailer 2
-
€1,417 EUR
View
Price last confirmed 13 days ago
Retailer 3
-
€1,435 EUR
View
Price last confirmed 11 days ago
Retailer 4
-
€1,450 EUR
View
Price last confirmed 27 days ago
Retailer 5
-
€1,450 EUR
View
Price last confirmed 25 days ago
Retailer 6
-
€1,450 EUR
View
Price last confirmed 12 days ago
Retailer 7
-
€1,450 EUR
View
Price last confirmed 15 days ago
Retailer 8
-
€1,450 EUR
View
Price last confirmed 25 days ago
Retailer 9
-
€1,488 EUR
View
Price last confirmed 10 days ago
Retailer 10
-
€1,517 EUR
View
Price last confirmed 15 days ago
Retailer 11
-
€1,523 EUR
View
Price last confirmed 11 days ago
Retailer 12
-
€1,541 EUR
View
Price last confirmed 10 days ago
Retailer 13
-
€1,673 EUR
View
Price last confirmed 26 days ago
Retailer 14
-
€1,673 EUR
View
Price last confirmed 14 days ago
Retailer 15
-
€1,705 EUR
View
Price last confirmed 13 days ago
B+
Retailer 16
-
€1,725 EUR
View
Retailer 17
-
€1,838 EUR
View
Price last confirmed 9 days ago
Retailer 18
-
€1,989 EUR
View
Price last confirmed 11 days ago
Retailer 19
-
€2,311 EUR
View
Price last confirmed 11 days ago
Retailer 20
-
€2,538 EUR
View
Price last confirmed 12 days ago
Retailer 21
-
€3,538 EUR
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
ac85094a-1a38-4c69-a7f7-313bfe985f19 · Oct 11
€3,538 EUR
$3,971 USD
View
Price last confirmed 26 days ago
21 more retailers have this diamond
Prices start from €1,725 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.

B+
1.00ct Round
€1,725 EUR