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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556452598

Certificate GIA 2556452598

Diamond specifications and retailer prices

From $2,413 CAD
As of November 6, 2026
Save $3,200 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,913 CAD at NZ Jewellers · As of September 19, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556452598. Listed at 20 retailers as of November 2, 2026, with a 133% 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556452598
Dimensions6.46 × 6.50 × 4.06 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.46 mm6.50 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556452598
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,343 CAD|Low: $2,413 CAD|High: $5,862 CAD|Avg: $3,396 CAD|-1.0%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 16$2,413 CAD
Retailer 5$2,457 CAD
Retailer 4$2,666 CAD
Retailer 11$2,747 CAD
Retailer 15$2,749 CAD
Retailer 2$2,923 CAD
Retailer 13$2,957 CAD
Retailer 6$3,166 CAD
Retailer 8$3,239 CAD
Retailer 1$3,343 CAD
Retailer 9$3,496 CAD
Retailer 10$3,680 CAD
Retailer 7$3,736 CAD
Retailer 14$3,772 CAD
Retailer 12$4,649 CAD
Retailer 3$5,613 CAD

30 data points across 16 retailers

20 retailers$2,413 CAD to $5,613 CAD

A
Cheapest Retailer
-
$2,413 CAD
Retailer 2
-
$2,457 CAD
View
Price last confirmed 17 days ago
Retailer 3
-
$2,666 CAD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$2,747 CAD
View
A
Retailer 5
-
$2,749 CAD
View
A
Retailer 6
-
$2,923 CAD
View
A
Retailer 7
-
$2,957 CAD
View
Final sale: no returns
Retailer 8
-
$3,239 CAD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$3,275 CAD
View
A
Retailer 10
-
$3,343 CAD
View
Retailer 11
-
$3,459 CAD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$3,496 CAD
View
B+
Retailer 13
-
$3,680 CAD
View
Retailer 14
-
$3,736 CAD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$3,772 CAD
View
Retailer 16
-
$3,816 CAD
View
Price last confirmed 48 days ago
B+
Retailer 17
-
$4,649 CAD
View
B
Retailer 18
-
$5,613 CAD
View
Retailer 19
-
$6,913 CAD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
05f53ec0-77c7-4a2a-a7d4-89ef61e356d8 · Sep 19
$6,913 CAD
$4,950 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $2,413 CADSave up to $3,200 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
$2,413 CAD