Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2494312059

Certificate GIA 2494312059

Diamond specifications and retailer prices

From $5,489 CAD
As of November 6, 2026
Save $6,613 CAD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,117 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 2494312059. Listed at 15 retailers as of November 5, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2494312059
Dimensions6.49 × 6.46 × 4.07 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.49 mm6.46 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2494312059
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 6
Current: $6,794 CAD|Low: $5,489 CAD|High: $11,195 CAD|Avg: $7,313 CAD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$5,489 CAD
Retailer 5$5,649 CAD
Retailer 7$5,956 CAD
Retailer 9$6,293 CAD
Retailer 1$6,794 CAD
Retailer 6$7,001 CAD
Retailer 3$7,810 CAD
Retailer 2$8,475 CAD
Retailer 4$11,033 CAD

45 data points across 9 retailers

15 retailers$5,489 CAD to $12,102 CAD

B+
Cheapest Retailer
-
$5,489 CAD
B+
Retailer 2
-
$5,649 CAD
View
B+
Retailer 3
-
$5,956 CAD
View
B
Retailer 4
-
$6,293 CAD
View
Retailer 5
-
$6,293 CAD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$6,293 CAD
View
B
Retailer 7
-
$6,794 CAD
View
Retailer 8
-
$7,001 CAD
View
Price last confirmed 28 days ago
B
Retailer 9
-
$7,261 CAD
View
Retailer 10
-
$7,669 CAD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$7,810 CAD
View
B
Retailer 12
-
$8,475 CAD
View
B
Retailer 13
-
$11,033 CAD
View
B
Retailer 14
-
$12,102 CAD
View
Most Expensive
Diamond Quarter
1.05SI1F2459DC59N · Nov 5
$16,117 CAD
£9,087 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $5,489 CADSave up to $6,613 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.

B+
1.05ct Round
$5,489 CAD