Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 5426197929

Certificate GIA 5426197929

Diamond specifications and retailer prices

From $4,022 CAD
As of November 6, 2026
Save $7,024 CAD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,046 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 5426197929. Listed at 19 retailers as of November 5, 2026, with prices from $4,022 to $11,046, a $7,024 spread on the same certified stone. Diamond Quarter lists it at $11,046. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5426197929
Dimensions6.55 × 6.54 × 4.02 mm
L/W Ratio1.00
Top View
6.55 mm6.54 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426197929
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.5%

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: $6,586 CAD|Low: $3,768 CAD|High: $9,134 CAD|Avg: $5,514 CAD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$4,022 CAD
Retailer 2$4,160 CAD
Retailer 8$4,511 CAD
Retailer 7$4,595 CAD
Retailer 10$5,077 CAD
Retailer 4$5,431 CAD
Retailer 9$5,781 CAD
Retailer 3$6,267 CAD
Retailer 1$6,586 CAD
Retailer 5$9,026 CAD

44 data points across 10 retailers

19 retailers$4,022 CAD to $11,046 CAD

A
Cheapest Retailer
-
$4,022 CAD
B+
Retailer 2
-
$4,511 CAD
View
Final sale: no returns
B+
Retailer 3
-
$4,592 CAD
View
B+
Retailer 4
-
$4,595 CAD
View
Retailer 5
-
$4,889 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,889 CAD
View
B+
Retailer 7
-
$5,077 CAD
View
B+
Retailer 8
-
$5,431 CAD
View
B+
Retailer 9
-
$5,498 CAD
View
B+
Retailer 10
-
$5,531 CAD
View
B+
Retailer 11
-
$5,531 CAD
View
B+
Retailer 12
-
$5,641 CAD
View
B+
Retailer 13
-
$5,726 CAD
View
Retailer 14
-
$5,781 CAD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$6,267 CAD
View
B
Retailer 16
-
$6,586 CAD
View
B
Retailer 17
-
$9,026 CAD
View
B
Retailer 18
-
$9,402 CAD
View
Most Expensive
B
Diamond Quarter
1.05SI1F5429FE07N · Nov 5
$11,046 CAD
£6,228 GBP
View
18 more retailers have this diamond
Prices start from $4,022 CADSave up to $7,024 CAD

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
$4,022 CAD