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Cushion|Natural|GIA

1.30ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 5526567353

Certificate GIA 5526567353

Diamond specifications and retailer prices

From $3,524 CAD
As of November 6, 2026
Save $2,263 CAD (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,787 CAD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion 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 stated by the retailer rather than the lab and certified by GIA 5526567353. Listed at 6 retailers as of November 6, 2026, with prices from $3,524 to $5,787, a $2,263 spread on the same certified stone. 77 Diamonds lists it at $5,787. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526567353
Dimensions6.50 × 5.89 × 4.11 mm
L/W Ratio1.10
Top View
6.50 mm5.89 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526567353
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.8%

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: $5,787 CAD|Low: $3,524 CAD|High: $5,901 CAD|Avg: $4,428 CAD|+0.4%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$3,524 CAD
Retailer 2$3,899 CAD
77 Diamonds$5,787 CAD

39 data points across 3 retailers

6 retailers$3,524 CAD to $5,787 CAD

A
Cheapest Retailer
-
$3,524 CAD
A
Retailer 2
-
$3,829 CAD
View
A
Retailer 3
-
$3,851 CAD
View
A
Retailer 4
-
$3,899 CAD
View
A
Retailer 5
-
$4,017 CAD
View
Most Expensive
B+
77 Diamonds
CUSZCPYKTYVG · Nov 6
$5,787 CAD
£3,240 GBP
View
5 more retailers have this diamond
Prices start from $3,524 CADSave up to $2,263 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 Cushion
$3,524 CAD