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Round|Natural|GIA

1.00ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6451475677

Certificate GIA 6451475677

Diamond specifications and retailer prices

From €2,341 EUR
As of November 6, 2026
Save €3,893 EUR (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,234 EUR at Diamond Quarter · As of November 6, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451475677. Listed at 19 retailers as of November 6, 2026, with prices from €2,341 to €6,234, a €3,893 spread on the same certified stone. Diamond Quarter lists it at €6,234. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6451475677
Dimensions6.46 × 6.42 × 3.93 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451475677
Side View
Table 57.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 61.0%

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: €3,320 EUR|Low: €2,341 EUR|High: €5,464 EUR|Avg: €3,343 EUR|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2€2,341 EUR
Retailer 7€2,373 EUR
Retailer 8€2,866 EUR
Retailer 3€2,919 EUR
Retailer 9€2,979 EUR
Retailer 4€3,307 EUR
Retailer 1€3,320 EUR
Retailer 6€3,447 EUR
Retailer 5€5,385 EUR

32 data points across 9 retailers

19 retailers€2,341 EUR to €6,234 EUR

A
Cheapest Retailer
-
€2,341 EUR
A
Retailer 2
-
€2,373 EUR
View
B+
Retailer 3
-
€2,815 EUR
View
B+
Retailer 4
-
€2,866 EUR
View
B+
Retailer 5
-
€2,919 EUR
View
B+
Retailer 6
-
€2,979 EUR
View
Final sale: no returns
Retailer 7
-
€3,022 EUR
View
Price last confirmed 110 days ago
Retailer 8
-
€3,229 EUR
View
Price last confirmed 9 days ago
B
Retailer 9
-
€3,229 EUR
View
B+
Retailer 10
-
€3,307 EUR
View
B+
Retailer 11
-
€3,320 EUR
View
B+
Retailer 12
-
€3,352 EUR
View
B+
Retailer 13
-
€3,359 EUR
View
B+
Retailer 14
-
€3,447 EUR
View
B
Retailer 15
-
€3,725 EUR
View
B
Retailer 16
-
€3,777 EUR
View
B
Retailer 17
-
€5,385 EUR
View
B
Retailer 18
-
€5,625 EUR
View
Most Expensive
B
Diamond Quarter
1.0SI2F64778F74N · Nov 6
€6,234 EUR
£5,481 GBP
View
18 more retailers have this diamond
Prices start from €2,341 EURSave up to €3,893 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
€2,341 EUR