Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2494311908

Certificate GIA 2494311908

Diamond specifications and retailer prices

From $4,885 CAD
As of November 6, 2026
Save $5,792 CAD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,547 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 2494311908. Listed at 15 retailers as of November 5, 2026, with a 119% 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
FluorescenceStrong
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2494311908
Dimensions6.55 × 6.53 × 4.05 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.55 mm6.53 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2494311908
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: $6,169 CAD|Low: $4,885 CAD|High: $9,877 CAD|Avg: $6,532 CAD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$4,885 CAD
Retailer 5$4,972 CAD
Retailer 7$5,300 CAD
Retailer 9$5,551 CAD
Retailer 1$6,169 CAD
Retailer 6$6,536 CAD
Retailer 4$6,912 CAD
Retailer 2$7,476 CAD
Retailer 3$9,733 CAD

43 data points across 9 retailers

15 retailers$4,885 CAD to $10,677 CAD

B+
Cheapest Retailer
-
$4,885 CAD
B+
Retailer 2
-
$4,972 CAD
View
B+
Retailer 3
-
$5,300 CAD
View
B+
Retailer 4
-
$5,551 CAD
View
Retailer 5
-
$5,551 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$5,551 CAD
View
B+
Retailer 7
-
$6,169 CAD
View
B
Retailer 8
-
$6,406 CAD
View
Retailer 9
-
$6,536 CAD
View
Price last confirmed 28 days ago
B
Retailer 10
-
$6,912 CAD
View
Retailer 11
-
$6,933 CAD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$7,476 CAD
View
B
Retailer 13
-
$9,733 CAD
View
B
Retailer 14
-
$10,677 CAD
View
Most Expensive
Diamond Quarter
1.05SI1F2408386BN · Nov 5
$14,547 CAD
£8,201 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $4,885 CADSave up to $5,792 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
$4,885 CAD