CaratHunter
Plans
Cushion|Natural|GIA

1.50ct J IF Cushion Natural Diamond

EX • J/IF • GIA 6515398385

Certificate GIA 6515398385

Diamond specifications and retailer prices

From $4,129 AUD
As of November 6, 2026
Save $959 AUD (19%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,088 AUD at GemTrove · As of November 7, 2026
View at GemTrove

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515398385. Listed at 7 retailers as of November 6, 2026, with prices from $4,129 to $5,088, a $959 spread on the same certified stone. GemTrove lists it at $5,088. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6515398385
Dimensions6.38 × 6.28 × 4.27 mm
L/W Ratio1.02
Top View
6.38 mm6.28 mm1.50 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6515398385
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

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: $4,129 AUD|Low: $3,691 AUD|High: $5,309 AUD|Avg: $4,457 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$4,129 AUD
Retailer 3$4,158 AUD
Retailer 4$4,237 AUD
Retailer 6$4,301 AUD
Retailer 2$4,419 AUD
Retailer 5$4,929 AUD

45 data points across 6 retailers

7 retailers$4,129 AUD to $5,088 AUD

A
Cheapest Retailer
-
$4,129 AUD
A
Retailer 2
-
$4,158 AUD
View
A
Retailer 3
-
$4,237 AUD
View
Final sale: no returns
A
Retailer 4
-
$4,301 AUD
View
A
Retailer 5
-
$4,419 AUD
View
A
Retailer 6
-
$4,929 AUD
View
Most Expensive
B+
GemTrove
GT-N-00963346-98 · Nov 7
$5,088 AUD
View
6 more retailers have this diamond
Prices start from $4,129 AUDSave up to $959 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
1.50ct Cushion
$4,129 AUD