Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1553137824

Certificate GIA 1553137824

Diamond specifications and retailer prices

From $2,592 CAD
As of November 4, 2026
Save $3,438 CAD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,247 CAD at NZ Jewellers · As of October 23, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553137824. Listed at 13 retailers as of November 4, 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

1.30
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553137824
Dimensions6.87 × 6.94 × 4.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.87 mm6.94 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553137824
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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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 4
Current: $7,247 CAD|Low: $2,574 CAD|High: $7,348 CAD|Avg: $4,122 CAD|-1.4%
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
November 6, 2026
Retailer 3$2,592 CAD
Retailer 12$3,163 CAD
Retailer 8$3,170 CAD
Retailer 5$3,184 CAD
Retailer 2$3,286 CAD
Retailer 6$3,607 CAD
Retailer 4$3,610 CAD
Retailer 7$3,613 CAD
Retailer 10$4,193 CAD
Retailer 9$4,258 CAD
Retailer 13$5,282 CAD
Retailer 11$6,031 CAD
NZ Jewellers$7,247 CAD

30 data points across 13 retailers

13 retailers$2,592 CAD to $6,031 CAD

A
Cheapest Retailer
-
$2,592 CAD
A
Retailer 2
-
$3,163 CAD
View
A
Retailer 3
-
$3,170 CAD
View
Final sale: no returns
A
Retailer 4
-
$3,184 CAD
View
A
Retailer 5
-
$3,286 CAD
View
A
Retailer 6
-
$3,607 CAD
View
A
Retailer 7
-
$3,610 CAD
View
A
Retailer 8
-
$3,613 CAD
View
B+
Retailer 9
-
$4,193 CAD
View
B+
Retailer 10
-
$4,258 CAD
View
B+
Retailer 11
-
$5,282 CAD
View
B
Retailer 12
-
$6,031 CAD
View
Most Expensive
NZ Jewellers
18fc6ffb-5f84-40f0-8655-db590685a699 · Oct 23
$7,247 CAD
$5,189 USD
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from $2,592 CADSave up to $3,438 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
$2,592 CAD