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Cushion|Natural|GIA

1.54ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 6512596055

Certificate GIA 6512596055

Diamond specifications and retailer prices

From $3,187 AUD
$2,239 USD
As of October 31, 2026
Save $3,048 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,236 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct natural cushion diamond

This 1.54ct natural cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512596055. Listed at 14 retailers as of October 29, 2026, with prices from $3,187 to $6,236, a $3,048 spread on the same certified stone. MOH London lists it at $6,236. 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

1.54
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.68°
OriginNatural
Grading LabGIA
CertificateGIA 6512596055
Dimensions7.57 × 6.25 × 4.22 mm
L/W Ratio1.21
Top View
7.57 mm6.25 mm1.54 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512596055
Side View
Table 62.0%Crown 35.68°Girdle: Very ThickPavilionCulet: NoneDepth 67.6%

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: Oct 31
Current: $6,236 AUD|Low: $2,982 AUD|High: $7,049 AUD|Avg: $3,983 AUD|-11.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 4$3,187 AUD
Retailer 11$3,197 AUD
Retailer 12$3,266 AUD
Retailer 2$3,406 AUD
Retailer 13$3,516 AUD
Retailer 14$3,540 AUD
Retailer 10$3,740 AUD
Retailer 7$3,783 AUD
Retailer 8$3,837 AUD
Retailer 3$3,844 AUD
Retailer 9$4,311 AUD
Retailer 6$4,679 AUD
Retailer 5$4,848 AUD
MOH London$6,236 AUD

28 data points across 14 retailers

14 retailers$3,187 AUD to $6,236 AUD

A
Cheapest Retailer
-
$3,187 AUD
$2,239 USD
A
Retailer 2
-
$3,197 AUD
$2,246 USD
View
A
Retailer 3
-
$3,266 AUD
$2,294 USD
View
Final sale: no returns
A
Retailer 4
-
$3,406 AUD
£1,884 GBP
View
A
Retailer 5
-
$3,516 AUD
$2,470 USD
View
A
Retailer 6
-
$3,540 AUD
$2,487 USD
View
A
Retailer 7
-
$3,740 AUD
$2,627 USD
View
A
Retailer 8
-
$3,783 AUD
£2,092 GBP
View
A
Retailer 9
-
$3,837 AUD
$2,695 USD
View
A
Retailer 10
-
$3,844 AUD
$2,700 USD
View
A
Retailer 11
-
$4,311 AUD
ZAR 48,918 ZAR
View
Retailer 12
-
$4,679 AUD
View
Price last confirmed 25 days ago
Retailer 13
-
$5,411 AUD
$3,801 USD
View
Price last confirmed 66 days ago
Most Expensive
B+
MOH London
9DFD4E605 · Oct 29
$6,236 AUD
£3,449 GBP
View
13 more retailers have this diamond
Prices start from $3,187 AUDSave up to $3,048 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
1.54ct Cushion
$3,187 AUD