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Cushion|Natural|GIA

1.30ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1232970786

Certificate GIA 1232970786

Diamond specifications and retailer prices

From $3,727 CAD
As of November 7, 2026
Save $1,449 CAD (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,252 CAD at MOH London · As of October 5, 2026
View at MOH London

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 1232970786. Listed at 6 retailers as of November 6, 2026, with a 39% 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.83°
OriginNatural
Grading LabGIA
CertificateGIA 1232970786
Dimensions7.19 × 5.63 × 3.91 mm
L/W Ratio1.28
Key to symbols
Crystal, Needle, Pinpoint
Top View
7.19 mm5.63 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232970786
Side View
Table 64.0%CrownGirdle: MED-VTKPavilion 35.83°Culet: NoneDepth 69.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $6,252 CAD|Low: $2,574 CAD|High: $6,413 CAD|Avg: $3,983 CAD|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$2,574 CAD
Retailer 9$2,781 CAD
Retailer 4$3,102 CAD
Retailer 7$3,296 CAD
Retailer 6$3,611 CAD
Retailer 10$3,727 CAD
Retailer 3$4,379 CAD
Retailer 2$5,176 CAD
Retailer 8$5,420 CAD
MOH London$6,252 CAD

22 data points across 10 retailers

6 retailers$3,727 CAD to $5,176 CAD

Retailer 1
-
$2,574 CAD
Price last confirmed 30 days ago
Retailer 2
-
$3,102 CAD
View
Price last confirmed 32 days ago
Retailer 3
-
$3,611 CAD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$3,727 CAD
View
B+
Retailer 5
-
$5,176 CAD
View
Most Expensive
MOH London
296C0F38D · Oct 5
$6,252 CAD
£3,500 GBP
View
Price last confirmed 32 days ago
5 more retailers have this diamond
Prices start from $3,727 CADSave up to $1,449 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
$3,727 CAD