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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6505210996

Certificate GIA 6505210996

Diamond specifications and retailer prices

From €1,282 EUR
As of November 6, 2026
Save €3,053 EUR (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,335 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505210996. Listed at 18 retailers as of November 5, 2026, with prices from €1,282 to €4,335, a €3,053 spread on the same certified stone. NZ Jewellers lists it at €4,335. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6505210996
Dimensions6.42 × 6.39 × 3.99 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.42 mm6.39 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505210996
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.3%

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: €1,282 EUR|Low: €1,282 EUR|High: €3,131 EUR|Avg: €1,829 EUR|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1€1,282 EUR
Retailer 7€1,300 EUR
Retailer 8€1,606 EUR
Retailer 9€1,657 EUR
Retailer 6€1,708 EUR
Retailer 2€1,724 EUR
Retailer 3€1,919 EUR
Retailer 5€2,189 EUR
Retailer 4€3,106 EUR

31 data points across 9 retailers

18 retailers€1,282 EUR to €4,335 EUR

A
Cheapest Retailer
-
€1,282 EUR
A
Retailer 2
-
€1,300 EUR
View
B+
Retailer 3
-
€1,559 EUR
View
B+
Retailer 4
-
€1,606 EUR
View
B+
Retailer 5
-
€1,657 EUR
View
B+
Retailer 6
-
€1,708 EUR
View
B+
Retailer 7
-
€1,724 EUR
View
Retailer 8
-
€1,777 EUR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
€1,777 EUR
View
B+
Retailer 10
-
€1,804 EUR
View
B+
Retailer 11
-
€1,859 EUR
View
B+
Retailer 12
-
€1,900 EUR
View
B+
Retailer 13
-
€1,919 EUR
View
B
Retailer 14
-
€2,051 EUR
View
B
Retailer 15
-
€2,189 EUR
View
B
Retailer 16
-
€2,529 EUR
View
B
Retailer 17
-
€3,106 EUR
View
Most Expensive
C
NZ Jewellers
98a302cd-3331-4711-b280-640809bb727d · Nov 5
€4,335 EUR
$4,866 USD
View
17 more retailers have this diamond
Prices start from €1,282 EURSave up to €3,053 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 Round
€1,282 EUR