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Cushion|Natural|GIA

1.30ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 1558676361

Certificate GIA 1558676361

Diamond specifications and retailer prices

From $4,409 NZD
As of November 6, 2026
Save $2,373 NZD (35%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,782 NZD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558676361. Listed at 5 retailers as of November 5, 2026, with prices from $4,409 to $6,782, a $2,373 spread on the same certified stone. 77 Diamonds lists it at $6,782. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558676361
Dimensions7.48 × 5.76 × 3.84 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Top View
7.48 mm5.76 mm1.30 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558676361
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: 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: $6,782 NZD|Low: $3,902 NZD|High: $9,057 NZD|Avg: $5,471 NZD|+21.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$4,098 NZD
Retailer 3$4,409 NZD
Retailer 8$4,450 NZD
Retailer 5$4,631 NZD
Retailer 7$4,757 NZD
Retailer 4$4,786 NZD
Retailer 2$4,863 NZD
Retailer 9$6,146 NZD
77 Diamonds$6,782 NZD
Retailer 10$9,057 NZD

41 data points across 10 retailers

5 retailers$4,409 NZD to $6,782 NZD

A
Cheapest Retailer
-
$4,409 NZD
A
Retailer 2
-
$4,631 NZD
View
A
Retailer 3
-
$4,786 NZD
View
A
Retailer 4
-
$4,863 NZD
View
Most Expensive
B
77 Diamonds
CUSMB7BKJHCVZ · Nov 5
$6,782 NZD
£2,960 GBP
View
4 more retailers have this diamond
Prices start from $4,409 NZDSave up to $2,373 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
$4,409 NZD