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Round|Natural|GIA

1.30ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6551576530

Certificate GIA 6551576530

Diamond specifications and retailer prices

From $3,225 CAD
As of November 6, 2026
Save $2,585 CAD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,951 CAD at NZ Jewellers · As of September 28, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551576530. Listed at 9 retailers as of November 4, 2026, with a 80% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551576530
Dimensions7.00 × 6.97 × 4.27 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.00 mm6.97 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551576530
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.2%

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: $3,225 CAD|Low: $3,223 CAD|High: $5,895 CAD|Avg: $4,257 CAD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 1$3,225 CAD
Retailer 2$3,497 CAD
Retailer 3$4,120 CAD
Retailer 4$5,810 CAD

43 data points across 4 retailers

9 retailers$3,225 CAD to $5,810 CAD

A
Cheapest Retailer
-
$3,225 CAD
Retailer 2
-
$3,325 CAD
View
Price last confirmed 29 days ago
Retailer 3
-
$3,325 CAD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,479 CAD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$3,497 CAD
View
Retailer 6
-
$3,836 CAD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$4,120 CAD
View
B
Retailer 8
-
$5,810 CAD
View
Most Expensive
NZ Jewellers
d3ba0be1-2a33-4eda-9c4c-65060e52b908 · Sep 28
$6,951 CAD
$4,977 USD
View
Price last confirmed 39 days ago
8 more retailers have this diamond
Prices start from $3,225 CADSave up to $2,585 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
$3,225 CAD