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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 $2,051 SGD
As of November 6, 2026
Save $2,624 SGD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,675 SGD 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 $2,051 to $4,675, a $2,624 spread on the same certified stone. MOH London lists it at $4,675. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,675 SGD|Low: $2,017 SGD|High: $4,837 SGD|Avg: $2,925 SGD|-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 7, 2026
Retailer 18$2,051 SGD
Retailer 6$2,071 SGD
Retailer 5$2,236 SGD
Retailer 14$2,268 SGD
Retailer 11$2,374 SGD
Retailer 8$2,418 SGD
Retailer 9$2,472 SGD
Retailer 16$2,477 SGD
Retailer 10$2,486 SGD
Retailer 17$2,614 SGD
Retailer 4$2,618 SGD
Retailer 2$2,905 SGD
Retailer 7$2,931 SGD
Retailer 13$3,264 SGD
Retailer 12$3,631 SGD
Retailer 15$4,188 SGD
Retailer 3$4,460 SGD
MOH London$4,675 SGD

25 data points across 18 retailers

20 retailers$2,051 SGD to $4,675 SGD

A
Cheapest Retailer
-
$2,051 SGD
A
Retailer 2
-
$2,071 SGD
View
A
Retailer 3
-
$2,236 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,268 SGD
View
A
Retailer 5
-
$2,374 SGD
View
A
Retailer 6
-
$2,418 SGD
View
A
Retailer 7
-
$2,472 SGD
View
A
Retailer 8
-
$2,477 SGD
View
A
Retailer 9
-
$2,486 SGD
View
A
Retailer 10
-
$2,614 SGD
View
A
Retailer 11
-
$2,618 SGD
View
A
Retailer 12
-
$2,905 SGD
View
A
Retailer 13
-
$2,931 SGD
View
B+
Retailer 14
-
$2,939 SGD
View
B+
Retailer 15
-
$3,264 SGD
View
Retailer 16
-
$3,454 SGD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$3,631 SGD
View
B+
Retailer 18
-
$4,188 SGD
View
B+
Retailer 19
-
$4,460 SGD
View
Most Expensive
B
MOH London
D0851533F · Nov 4
$4,675 SGD
£2,872 GBP
View
19 more retailers have this diamond
Prices start from $2,051 SGDSave up to $2,624 SGD

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
$2,051 SGD