CaratHunter
Plans
Cushion|Natural|GIA

1.23ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 2556358703

Certificate GIA 2556358703

Diamond specifications and retailer prices

From $2,886 NZD
As of November 6, 2026
Save $3,675 NZD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,561 NZD at MOH London · As of November 7, 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 6, 2026, with prices from $2,886 to $6,561, a $3,675 spread on the same certified stone. MOH London lists it at $6,561. 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: $6,561 NZD|Low: $2,839 NZD|High: $6,809 NZD|Avg: $4,119 NZD|-3.6%
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$2,886 NZD
Retailer 6$2,915 NZD
Retailer 5$3,148 NZD
Retailer 14$3,193 NZD
Retailer 11$3,341 NZD
Retailer 8$3,404 NZD
Retailer 9$3,480 NZD
Retailer 16$3,487 NZD
Retailer 10$3,500 NZD
Retailer 17$3,680 NZD
Retailer 4$3,685 NZD
Retailer 2$4,089 NZD
Retailer 7$4,126 NZD
Retailer 13$4,595 NZD
Retailer 12$5,110 NZD
Retailer 15$5,895 NZD
Retailer 3$6,278 NZD
MOH London$6,561 NZD

25 data points across 18 retailers

20 retailers$2,886 NZD to $6,561 NZD

A
Cheapest Retailer
-
$2,886 NZD
A
Retailer 2
-
$2,915 NZD
View
A
Retailer 3
-
$3,148 NZD
View
Final sale: no returns
A
Retailer 4
-
$3,193 NZD
View
A
Retailer 5
-
$3,341 NZD
View
A
Retailer 6
-
$3,404 NZD
View
A
Retailer 7
-
$3,480 NZD
View
A
Retailer 8
-
$3,487 NZD
View
A
Retailer 9
-
$3,500 NZD
View
A
Retailer 10
-
$3,680 NZD
View
A
Retailer 11
-
$3,685 NZD
View
A
Retailer 12
-
$4,089 NZD
View
A
Retailer 13
-
$4,126 NZD
View
B+
Retailer 14
-
$4,136 NZD
View
B+
Retailer 15
-
$4,595 NZD
View
Retailer 16
-
$4,862 NZD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$5,110 NZD
View
B+
Retailer 18
-
$5,895 NZD
View
B+
Retailer 19
-
$6,278 NZD
View
Most Expensive
B
MOH London
D0851533F · Nov 7
$6,561 NZD
£2,864 GBP
View
19 more retailers have this diamond
Prices start from $2,886 NZDSave up to $3,675 NZD

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
$2,886 NZD