CaratHunter
Plans
Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2566398726

Certificate GIA 2566398726

Diamond specifications and retailer prices

From €2,110 EUR
As of November 4, 2026
Save €2,630 EUR (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,740 EUR at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 2566398726. Listed at 16 retailers as of November 2, 2026, with prices from €2,110 to €4,740, a €2,630 spread on the same certified stone. NZ Jewellers lists it at €4,740. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566398726
Dimensions6.53 × 6.55 × 3.95 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.53 mm6.55 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566398726
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 4
Current: €4,740 EUR|Low: €2,110 EUR|High: €5,086 EUR|Avg: €3,044 EUR|-6.8%
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
November 4, 2026
Retailer 2€2,110 EUR
Retailer 13€2,128 EUR
Retailer 10€2,373 EUR
Retailer 8€2,512 EUR
Retailer 4€2,565 EUR
Retailer 14€2,674 EUR
Retailer 7€2,686 EUR
Retailer 11€2,721 EUR
Retailer 9€2,780 EUR
Retailer 3€2,886 EUR
Retailer 5€2,983 EUR
Retailer 6€3,003 EUR
Retailer 12€3,104 EUR
Retailer 16€3,207 EUR
Retailer 15€4,648 EUR
NZ Jewellers€4,740 EUR

26 data points across 16 retailers

16 retailers€2,110 EUR to €4,740 EUR

A
Cheapest Retailer
-
€2,110 EUR
A
Retailer 2
-
€2,128 EUR
View
A
Retailer 3
-
€2,373 EUR
View
A
Retailer 4
-
€2,512 EUR
View
A
Retailer 5
-
€2,674 EUR
View
A
Retailer 6
-
€2,686 EUR
View
A
Retailer 7
-
€2,721 EUR
View
A
Retailer 8
-
€2,780 EUR
View
B+
Retailer 9
-
€2,886 EUR
View
B+
Retailer 10
-
€2,983 EUR
View
Retailer 11
-
€3,003 EUR
View
Price last confirmed 10 days ago
B+
Retailer 12
-
€3,104 EUR
View
B+
Retailer 13
-
€3,207 EUR
View
Retailer 14
-
€3,219 EUR
View
Price last confirmed 30 days ago
B
Retailer 15
-
€4,648 EUR
View
Most Expensive
B
NZ Jewellers
50fac8a4-b084-4287-902a-f994f3f5cc93 · Nov 2
€4,740 EUR
$5,320 USD
View
15 more retailers have this diamond
Prices start from €2,110 EURSave up to €2,630 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
1.03ct Round
€2,110 EUR