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Cushion|Natural|GIA

1.30ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 2557251710

Certificate GIA 2557251710

Diamond specifications and retailer prices

From $4,548 NZD
As of November 6, 2026
Save $4,087 NZD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,635 NZD at MOH London · As of November 2, 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 2557251710. Listed at 8 retailers as of November 2, 2026, with prices from $4,548 to $8,635, a $4,087 spread on the same certified stone. MOH London lists it at $8,635. 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
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557251710
Dimensions7.03 × 5.46 × 3.81 mm
L/W Ratio1.29
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Natural
Top View
7.03 mm5.46 mm1.30 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557251710
Side View
Table 55.0%CrownGirdlePavilionCulet: NoneDepth 69.8%

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: $8,635 NZD|Low: $4,171 NZD|High: $8,740 NZD|Avg: $5,774 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$4,548 NZD
Retailer 6$4,744 NZD
Retailer 5$4,928 NZD
Retailer 2$5,217 NZD
Retailer 8$5,522 NZD
Retailer 3$5,738 NZD
Retailer 4$6,016 NZD
MOH London$8,635 NZD

46 data points across 8 retailers

8 retailers$4,548 NZD to $8,635 NZD

A
Cheapest Retailer
-
$4,548 NZD
Final sale: no returns
A
Retailer 2
-
$4,744 NZD
View
Retailer 3
-
$4,928 NZD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$5,217 NZD
View
Retailer 5
-
$5,522 NZD
View
Price last confirmed 31 days ago
B+
Retailer 6
-
$5,738 NZD
View
B+
Retailer 7
-
$6,016 NZD
View
Most Expensive
B
MOH London
AA3B9E014 · Nov 2
$8,635 NZD
£3,769 GBP
View
7 more retailers have this diamond
Prices start from $4,548 NZDSave up to $4,087 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
1.30ct Cushion
$4,548 NZD