CaratHunter
Plans
Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

J/SI2 • GIA 3565400574

Certificate GIA 3565400574

Diamond specifications and retailer prices

From $3,663 NZD
As of November 1, 2026
Save $1,600 NZD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,263 NZD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 J colour (near-colourless) and SI2 clarity (slightly-included) and certified by GIA 3565400574. Listed at 7 retailers as of October 31, 2026, with prices from $3,663 to $5,263, a $1,600 spread on the same certified stone. Blue Nile lists it at $5,263. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
J
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565400574
Dimensions7.92 × 5.59 × 3.69 mm
L/W Ratio1.42
Top View
7.92 mm5.59 mm1.30 ctJ / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565400574
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.1%

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 1
Current: $5,263 NZD|Low: $3,641 NZD|High: $5,485 NZD|Avg: $4,393 NZD|-1.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 3$3,663 NZD
Retailer 2$3,698 NZD
Retailer 5$3,904 NZD
Retailer 7$4,267 NZD
Retailer 8$4,443 NZD
Retailer 6$4,667 NZD
Retailer 4$5,101 NZD
Blue Nile$5,263 NZD

32 data points across 8 retailers

7 retailers$3,663 NZD to $5,263 NZD

A
Cheapest Retailer
-
$3,663 NZD
A
Retailer 2
-
$3,698 NZD
View
B+
Retailer 3
-
$3,904 NZD
View
Final sale: no returns
B+
Retailer 4
-
$4,267 NZD
View
B+
Retailer 5
-
$4,667 NZD
View
Retailer 6
-
$5,101 NZD
View
Price last confirmed 8 days ago
Most Expensive
B
Blue Nile
30380811 · Oct 31
$5,263 NZD
$2,960 USD
View
6 more retailers have this diamond
Prices start from $3,663 NZDSave up to $1,600 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
$3,663 NZD