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Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 1558530406

Certificate GIA 1558530406

Diamond specifications and retailer prices

From $2,314 AUD
HK$12,700 HKD
As of November 1, 2026
Save $3,104 AUD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,418 AUD at MOH London · As of October 29, 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 J 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 1558530406. Listed at 12 retailers as of October 29, 2026, with prices from $2,314 to $5,418, a $3,104 spread on the same certified stone. MOH London lists it at $5,418. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558530406
Dimensions7.49 × 5.58 × 3.76 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
7.49 mm5.58 mm1.30 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558530406
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.4%

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: $5,418 AUD|Low: $2,296 AUD|High: $5,485 AUD|Avg: $3,287 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$2,314 AUD
Retailer 3$2,436 AUD
Retailer 7$2,830 AUD
Retailer 8$2,839 AUD
Retailer 6$3,076 AUD
Retailer 10$3,232 AUD
Retailer 9$3,274 AUD
Retailer 2$3,357 AUD
Retailer 5$3,842 AUD
MOH London$5,418 AUD

37 data points across 10 retailers

12 retailers$2,314 AUD to $5,418 AUD

A
Cheapest Retailer
-
$2,314 AUD
HK$12,700 HKD
A
Retailer 2
-
$2,436 AUD
₹162,954 INR
View
A
Retailer 3
-
$2,830 AUD
SGD 2,686 SGD
View
A
Retailer 4
-
$2,839 AUD
$1,994 USD
View
Final sale: no returns
A
Retailer 5
-
$2,898 AUD
$2,036 USD
View
A
Retailer 6
-
$3,076 AUD
$2,161 USD
View
A
Retailer 7
-
$3,232 AUD
$2,270 USD
View
A
Retailer 8
-
$3,274 AUD
$2,300 USD
View
A
Retailer 9
-
$3,357 AUD
£1,857 GBP
View
B+
Retailer 10
-
$3,459 AUD
View
B+
Retailer 11
-
$3,842 AUD
€2,570 EUR
View
Most Expensive
B
MOH London
EC01730CC · Oct 29
$5,418 AUD
£2,997 GBP
View
11 more retailers have this diamond
Prices start from $2,314 AUDSave up to $3,104 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.

A
1.30ct Cushion
$2,314 AUD