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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555614721

Certificate GIA 1555614721

Diamond specifications and retailer prices

From €2,031 EUR
As of November 6, 2026
Save €3,157 EUR (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,189 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555614721. Listed at 21 retailers as of November 5, 2026, with prices from €2,031 to €5,189, a €3,157 spread on the same certified stone. NZ Jewellers lists it at €5,189. 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

1.05
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555614721
Dimensions6.51 × 6.53 × 4.04 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Cloud
Top View
6.51 mm6.53 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555614721
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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: €5,189 EUR|Low: €1,902 EUR|High: €5,189 EUR|Avg: €2,767 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
November 6, 2026
Retailer 7€2,031 EUR
Retailer 5€2,033 EUR
Retailer 6€2,075 EUR
Retailer 14€2,248 EUR
Retailer 16€2,248 EUR
Retailer 15€2,352 EUR
Retailer 9€2,373 EUR
Retailer 4€2,550 EUR
Retailer 3€2,595 EUR
Retailer 2€2,596 EUR
Retailer 8€2,780 EUR
Retailer 13€2,897 EUR
Retailer 10€2,923 EUR
Retailer 11€3,029 EUR
Retailer 12€4,337 EUR
NZ Jewellers€5,189 EUR

31 data points across 16 retailers

21 retailers€2,031 EUR to €5,189 EUR

A
Cheapest Retailer
-
€2,031 EUR
A
Retailer 2
-
€2,033 EUR
View
A
Retailer 3
-
€2,075 EUR
View
Final sale: no returns
A
Retailer 4
-
€2,165 EUR
View
A
Retailer 5
-
€2,248 EUR
View
Retailer 6
-
€2,248 EUR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€2,287 EUR
View
B+
Retailer 8
-
€2,352 EUR
View
B+
Retailer 9
-
€2,353 EUR
View
B+
Retailer 10
-
€2,373 EUR
View
B+
Retailer 11
-
€2,550 EUR
View
B+
Retailer 12
-
€2,595 EUR
View
B+
Retailer 13
-
€2,596 EUR
View
B+
Retailer 14
-
€2,777 EUR
View
Retailer 15
-
€2,780 EUR
View
Price last confirmed 30 days ago
B+
Retailer 16
-
€2,833 EUR
View
B+
Retailer 17
-
€2,897 EUR
View
B+
Retailer 18
-
€2,923 EUR
View
B
Retailer 19
-
€3,029 EUR
View
B
Retailer 20
-
€4,337 EUR
View
Most Expensive
B
NZ Jewellers
e8e9a1de-dcce-42c5-84ec-6cec898aa17c · Nov 5
€5,189 EUR
$5,793 USD
View
20 more retailers have this diamond
Prices start from €2,031 EURSave up to €3,157 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
1.05ct Round
€2,031 EUR