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Cushion|Natural|GIA

1.23ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 2556358703

Certificate GIA 2556358703

Diamond specifications and retailer prices

From $2,251 CAD
As of November 6, 2026
Save $2,880 CAD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,130 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 2556358703. Listed at 20 retailers as of November 4, 2026, with prices from $2,251 to $5,130, a $2,880 spread on the same certified stone. MOH London lists it at $5,130. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556358703
Dimensions6.14 × 6.13 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.14 mm6.13 mm1.23 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556358703
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.6%

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: $5,130 CAD|Low: $2,214 CAD|High: $5,309 CAD|Avg: $3,246 CAD|-3.4%
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 18$2,251 CAD
Retailer 6$2,273 CAD
Retailer 5$2,455 CAD
Retailer 14$2,490 CAD
Retailer 2$2,605 CAD
Retailer 8$2,654 CAD
Retailer 9$2,713 CAD
Retailer 16$2,719 CAD
Retailer 10$2,729 CAD
Retailer 17$2,869 CAD
Retailer 4$2,874 CAD
Retailer 12$3,189 CAD
Retailer 7$3,217 CAD
Retailer 13$3,583 CAD
Retailer 11$3,985 CAD
Retailer 15$4,597 CAD
Retailer 3$4,895 CAD
MOH London$5,130 CAD

24 data points across 18 retailers

20 retailers$2,251 CAD to $5,130 CAD

A
Cheapest Retailer
-
$2,251 CAD
A
Retailer 2
-
$2,273 CAD
View
A
Retailer 3
-
$2,455 CAD
View
Final sale: no returns
A
Retailer 4
-
$2,490 CAD
View
A
Retailer 5
-
$2,605 CAD
View
A
Retailer 6
-
$2,654 CAD
View
A
Retailer 7
-
$2,713 CAD
View
A
Retailer 8
-
$2,719 CAD
View
A
Retailer 9
-
$2,729 CAD
View
A
Retailer 10
-
$2,869 CAD
View
A
Retailer 11
-
$2,874 CAD
View
A
Retailer 12
-
$3,189 CAD
View
A
Retailer 13
-
$3,217 CAD
View
B+
Retailer 14
-
$3,225 CAD
View
B+
Retailer 15
-
$3,583 CAD
View
Retailer 16
-
$3,791 CAD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$3,985 CAD
View
B+
Retailer 18
-
$4,597 CAD
View
B+
Retailer 19
-
$4,895 CAD
View
Most Expensive
B
MOH London
D0851533F · Nov 4
$5,130 CAD
£2,872 GBP
View
19 more retailers have this diamond
Prices start from $2,251 CADSave up to $2,880 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
1.23ct Cushion
$2,251 CAD