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Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2557211440

Certificate GIA 2557211440

Diamond specifications and retailer prices

From $2,556 CAD
As of November 4, 2026
Save $3,390 CAD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,945 CAD at MOH London · As of November 4, 2026
View at MOH London

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 2557211440. Listed at 13 retailers as of November 4, 2026, with prices from $2,556 to $5,945, a $3,390 spread on the same certified stone. MOH London lists it at $5,945. 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 2557211440
Dimensions6.94 × 6.90 × 4.34 mm
L/W Ratio1.01
Top View
6.94 mm6.90 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557211440
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°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 4
Current: $5,945 CAD|Low: $2,538 CAD|High: $7,315 CAD|Avg: $3,911 CAD|-2.8%
MOH London
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 12$2,556 CAD
Retailer 6$2,691 CAD
Retailer 8$3,105 CAD
Retailer 13$3,121 CAD
Retailer 16$3,121 CAD
Retailer 3$3,141 CAD
Retailer 2$3,255 CAD
Retailer 9$3,557 CAD
Retailer 4$3,567 CAD
Retailer 11$3,578 CAD
Retailer 15$3,793 CAD
Retailer 10$4,153 CAD
Retailer 5$4,248 CAD
Retailer 14$5,214 CAD
MOH London$5,945 CAD
Retailer 7$6,564 CAD

30 data points across 16 retailers

13 retailers$2,556 CAD to $5,945 CAD

A
Cheapest Retailer
-
$2,556 CAD
Retailer 2
-
$2,691 CAD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$3,121 CAD
View
A
Retailer 4
-
$3,121 CAD
View
A
Retailer 5
-
$3,141 CAD
View
Final sale: no returns
A
Retailer 6
-
$3,255 CAD
View
A
Retailer 7
-
$3,557 CAD
View
B+
Retailer 8
-
$3,567 CAD
View
A
Retailer 9
-
$3,578 CAD
View
B+
Retailer 10
-
$3,793 CAD
View
B+
Retailer 11
-
$4,153 CAD
View
B+
Retailer 12
-
$5,214 CAD
View
Most Expensive
B
MOH London
488879128 · Nov 4
$5,945 CAD
£3,352 GBP
View
12 more retailers have this diamond
Prices start from $2,556 CADSave up to $3,390 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
$2,556 CAD