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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6565439499

Certificate GIA 6565439499

Diamond specifications and retailer prices

From €2,030 EUR
As of November 4, 2026
Save €3,606 EUR (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,635 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565439499. Listed at 21 retailers as of November 4, 2026, with prices from €2,030 to €5,635, a €3,606 spread on the same certified stone. NZ Jewellers lists it at €5,635. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565439499
Dimensions6.40 × 6.37 × 4.01 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.37 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565439499
Side View
Table 55.0%Crown 36°Girdle: MED-MEDPavilion 40.8°Culet: NoneDepth 62.8%

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 4
Current: €2,579 EUR|Low: €2,030 EUR|High: €4,531 EUR|Avg: €2,738 EUR|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4€2,030 EUR
Retailer 11€2,036 EUR
Retailer 5€2,230 EUR
Retailer 12€2,318 EUR
Retailer 13€2,339 EUR
Retailer 9€2,438 EUR
Retailer 1€2,579 EUR
Retailer 3€2,588 EUR
Retailer 7€2,796 EUR
Retailer 6€2,822 EUR
Retailer 8€2,980 EUR
Retailer 10€3,123 EUR
Retailer 2€4,507 EUR

22 data points across 13 retailers

21 retailers€2,030 EUR to €5,635 EUR

A
Cheapest Retailer
-
€2,030 EUR
A
Retailer 2
-
€2,036 EUR
View
Retailer 3
-
€2,230 EUR
View
Price last confirmed 11 days ago
A
Retailer 4
-
€2,284 EUR
View
A
Retailer 5
-
€2,318 EUR
View
A
Retailer 6
-
€2,339 EUR
View
A
Retailer 7
-
€2,373 EUR
View
A
Retailer 8
-
€2,438 EUR
View
A
Retailer 9
-
€2,488 EUR
View
Final sale: no returns
A
Retailer 10
-
€2,579 EUR
View
A
Retailer 11
-
€2,588 EUR
View
A
Retailer 12
-
€2,695 EUR
View
A
Retailer 13
-
€2,796 EUR
View
B+
Retailer 14
-
€2,799 EUR
View
B+
Retailer 15
-
€2,822 EUR
View
B+
Retailer 16
-
€2,980 EUR
View
B+
Retailer 17
-
€3,110 EUR
View
B+
Retailer 18
-
€3,123 EUR
View
B+
Retailer 19
-
€3,924 EUR
View
B
Retailer 20
-
€4,507 EUR
View
Most Expensive
B
NZ Jewellers
7a2dbb6a-4cc8-405f-9168-08fa7d082c80 · Nov 5
€5,635 EUR
$6,325 USD
View
20 more retailers have this diamond
Prices start from €2,030 EURSave up to €3,606 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
€2,030 EUR