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Cushion|Natural|GIA

1.23ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6291665728

Certificate GIA 6291665728

Diamond specifications and retailer prices

From $5,432 CAD
As of November 6, 2026
Save $4,375 CAD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,807 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-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 6291665728. Listed at 9 retailers as of November 4, 2026, with prices from $5,432 to $9,807, a $4,375 spread on the same certified stone. MOH London lists it at $9,807. 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

1.23
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6291665728
Dimensions6.13 × 5.85 × 3.94 mm
L/W Ratio1.05
Top View
6.13 mm5.85 mm1.23 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6291665728
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,807 CAD|Low: $5,401 CAD|High: $10,197 CAD|Avg: $6,747 CAD|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$5,432 CAD
Retailer 5$5,514 CAD
Retailer 7$5,579 CAD
Retailer 8$6,174 CAD
Retailer 3$6,494 CAD
Retailer 6$6,584 CAD
Retailer 2$6,947 CAD
Retailer 4$7,532 CAD
MOH London$9,807 CAD

44 data points across 9 retailers

9 retailers$5,432 CAD to $9,807 CAD

B
Cheapest Retailer
-
$5,432 CAD
Retailer 2
-
$5,514 CAD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$5,579 CAD
View
Retailer 4
-
$6,174 CAD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$6,494 CAD
View
Retailer 6
-
$6,584 CAD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$6,947 CAD
View
B
Retailer 8
-
$7,532 CAD
View
Most Expensive
B
MOH London
1B5FC5FE1 · Nov 4
$9,807 CAD
£5,490 GBP
View
8 more retailers have this diamond
Prices start from $5,432 CADSave up to $4,375 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.

B
1.23ct Cushion
$5,432 CAD