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Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1567180831

Certificate GIA 1567180831

Diamond specifications and retailer prices

From $4,075 CAD
As of November 6, 2026
Save $4,961 CAD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,414 CAD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1567180831. Listed at 20 retailers as of November 2, 2026, with a 122% 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

1.30
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1567180831
Dimensions6.89 × 6.94 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.89 mm6.94 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567180831
Side View
Table 57.0%Crown 34.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 63.3%

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: $4,215 CAD|Low: $4,075 CAD|High: $9,145 CAD|Avg: $5,775 CAD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$4,075 CAD
Retailer 1$4,215 CAD
Retailer 6$4,754 CAD
Retailer 2$4,987 CAD
Retailer 4$5,138 CAD
Retailer 8$5,438 CAD
Retailer 9$5,612 CAD
Retailer 3$5,788 CAD
Retailer 7$6,283 CAD
Retailer 5$6,595 CAD
Retailer 10$9,036 CAD

34 data points across 11 retailers

20 retailers$4,075 CAD to $9,036 CAD

A
Cheapest Retailer
-
$4,075 CAD
A
Retailer 2
-
$4,215 CAD
View
A
Retailer 3
-
$4,754 CAD
View
A
Retailer 4
-
$4,961 CAD
View
A
Retailer 5
-
$4,965 CAD
View
A
Retailer 6
-
$4,987 CAD
View
Final sale: no returns
B+
Retailer 7
-
$5,138 CAD
View
Retailer 8
-
$5,403 CAD
View
Price last confirmed 17 days ago
Retailer 9
-
$5,403 CAD
View
Price last confirmed 44 days ago
Retailer 10
-
$5,403 CAD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
$5,419 CAD
View
B+
Retailer 12
-
$5,438 CAD
View
B+
Retailer 13
-
$5,607 CAD
View
B+
Retailer 14
-
$5,612 CAD
View
Retailer 15
-
$5,788 CAD
View
Price last confirmed 29 days ago
Retailer 16
-
$6,234 CAD
View
Price last confirmed 45 days ago
B+
Retailer 17
-
$6,283 CAD
View
B+
Retailer 18
-
$6,595 CAD
View
B
Retailer 19
-
$9,036 CAD
View
Most Expensive
NZ Jewellers
c4e5f4f4-57b6-4a17-9f38-eefb5c955d35 · Sep 21
$9,414 CAD
$6,741 USD
View
Price last confirmed 45 days ago
19 more retailers have this diamond
Prices start from $4,075 CADSave up to $4,961 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
1.30ct Round
$4,075 CAD