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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555614721

Certificate GIA 1555614721

Diamond specifications and retailer prices

From $3,167 CAD
As of November 6, 2026
Save $4,923 CAD (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,091 CAD at NZ Jewellers · As of November 5, 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 1555614721. Listed at 21 retailers as of November 5, 2026, with prices from $3,167 to $8,091, a $4,923 spread on the same certified stone. NZ Jewellers lists it at $8,091. 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°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555614721
Dimensions6.51 × 6.53 × 4.04 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Cloud
Top View
6.51 mm6.53 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555614721
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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: $8,091 CAD|Low: $2,966 CAD|High: $8,091 CAD|Avg: $4,315 CAD
NZ Jewellers
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 7$3,167 CAD
Retailer 5$3,170 CAD
Retailer 6$3,236 CAD
Retailer 14$3,505 CAD
Retailer 16$3,505 CAD
Retailer 15$3,667 CAD
Retailer 9$3,700 CAD
Retailer 4$3,976 CAD
Retailer 3$4,046 CAD
Retailer 2$4,047 CAD
Retailer 8$4,335 CAD
Retailer 13$4,517 CAD
Retailer 10$4,557 CAD
Retailer 11$4,723 CAD
Retailer 12$6,762 CAD
NZ Jewellers$8,091 CAD

31 data points across 16 retailers

21 retailers$3,167 CAD to $8,091 CAD

A
Cheapest Retailer
-
$3,167 CAD
A
Retailer 2
-
$3,170 CAD
View
A
Retailer 3
-
$3,236 CAD
View
Final sale: no returns
A
Retailer 4
-
$3,376 CAD
View
A
Retailer 5
-
$3,505 CAD
View
Retailer 6
-
$3,505 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,566 CAD
View
B+
Retailer 8
-
$3,667 CAD
View
B+
Retailer 9
-
$3,669 CAD
View
B+
Retailer 10
-
$3,700 CAD
View
B+
Retailer 11
-
$3,976 CAD
View
B+
Retailer 12
-
$4,046 CAD
View
B+
Retailer 13
-
$4,047 CAD
View
B+
Retailer 14
-
$4,329 CAD
View
Retailer 15
-
$4,335 CAD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$4,417 CAD
View
B+
Retailer 17
-
$4,517 CAD
View
B+
Retailer 18
-
$4,557 CAD
View
B
Retailer 19
-
$4,723 CAD
View
B
Retailer 20
-
$6,762 CAD
View
Most Expensive
B
NZ Jewellers
e8e9a1de-dcce-42c5-84ec-6cec898aa17c · Nov 5
$8,091 CAD
$5,793 USD
View
20 more retailers have this diamond
Prices start from $3,167 CADSave up to $4,923 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
$3,167 CAD