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Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

J/SI2 • GIA 6552180098

Shape and cutting style on the report: Old miner

Certificate GIA 6552180098

Diamond specifications and retailer prices

From $4,161 AUD
$2,923 USD
As of October 29, 2026
Save $494 AUD (11%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,655 AUD at Yorxs · As of October 31, 2026
View at Yorxs

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 6552180098. Listed at 5 retailers as of October 29, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552180098
Dimensions8.46 × 5.22 × 3.47 mm
L/W Ratio1.62
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
8.46 mm5.22 mm1.30 ctJ / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552180098
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,356 AUD|Low: $4,161 AUD|High: $5,318 AUD|Avg: $4,569 AUD|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
October 31, 2026
Retailer 3$4,161 AUD
Retailer 2$4,177 AUD
Retailer 1$4,356 AUD
Retailer 4$4,359 AUD
Yorxs$4,655 AUD

20 data points across 5 retailers

5 retailers$4,161 AUD to $4,655 AUD

B+
Cheapest Retailer
-
$4,161 AUD
$2,923 USD
B+
Retailer 2
-
$4,177 AUD
$2,934 USD
View
B
Retailer 3
-
$4,356 AUD
$3,060 USD
View
B
Retailer 4
-
$4,359 AUD
SGD 4,138 SGD
View
Most Expensive
B
Yorxs
554705810 · Oct 31
$4,655 AUD
€3,114 EUR
View
4 more retailers have this diamond
Prices start from $4,161 AUDSave up to $494 AUD

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.

B+
1.30ct Cushion
$4,161 AUD