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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1558729376

Certificate GIA 1558729376

Diamond specifications and retailer prices

From €2,796 EUR
As of November 4, 2026
Save €3,543 EUR (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €6,339 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558729376. Listed at 16 retailers as of November 4, 2026, with prices from €2,796 to €6,339, a €3,543 spread on the same certified stone. NZ Jewellers lists it at €6,339. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1558729376
Dimensions6.42 × 6.46 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.42 mm6.46 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558729376
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €3,662 EUR|Low: €2,631 EUR|High: €6,085 EUR|Avg: €3,608 EUR|-10.2%
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
Retailer 14
November 6, 2026
Retailer 5€2,796 EUR
Retailer 11€2,894 EUR
Retailer 3€3,132 EUR
Retailer 4€3,297 EUR
Retailer 13€3,297 EUR
Retailer 9€3,423 EUR
Retailer 2€3,586 EUR
Retailer 1€3,662 EUR
Retailer 12€3,804 EUR
Retailer 8€3,981 EUR
Retailer 14€4,118 EUR
Retailer 6€4,279 EUR
Retailer 7€4,442 EUR
Retailer 10€6,085 EUR

39 data points across 14 retailers

16 retailers€2,796 EUR to €6,339 EUR

B+
Cheapest Retailer
-
€2,796 EUR
B+
Retailer 2
-
€2,844 EUR
View
B+
Retailer 3
-
€2,894 EUR
View
Final sale: no returns
B+
Retailer 4
-
€3,132 EUR
View
B+
Retailer 5
-
€3,297 EUR
View
B+
Retailer 6
-
€3,297 EUR
View
B+
Retailer 7
-
€3,423 EUR
View
B+
Retailer 8
-
€3,586 EUR
View
B+
Retailer 9
-
€3,586 EUR
View
B+
Retailer 10
-
€3,662 EUR
View
B+
Retailer 11
-
€3,804 EUR
View
B+
Retailer 12
-
€3,981 EUR
View
B
Retailer 13
-
€4,279 EUR
View
B
Retailer 14
-
€4,442 EUR
View
B
Retailer 15
-
€6,085 EUR
View
Most Expensive
B
NZ Jewellers
9e420a83-dc25-4924-8280-fa19a2fa8ce1 · Nov 5
€6,339 EUR
$7,078 USD
View
15 more retailers have this diamond
Prices start from €2,796 EURSave up to €3,543 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+
1.05ct Round
€2,796 EUR