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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 $3,973 NZD
$2,239 USD
As of October 31, 2026
Save $3,799 NZD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,772 NZD 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 $3,973 to $7,772, a $3,799 spread on the same certified stone. MOH London lists it at $7,772. 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: $7,772 NZD|Low: $3,717 NZD|High: $8,786 NZD|Avg: $4,965 NZD|-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$3,973 NZD
Retailer 11$3,985 NZD
Retailer 12$4,070 NZD
Retailer 2$4,245 NZD
Retailer 13$4,383 NZD
Retailer 14$4,413 NZD
Retailer 10$4,661 NZD
Retailer 7$4,715 NZD
Retailer 8$4,782 NZD
Retailer 3$4,791 NZD
Retailer 9$5,373 NZD
Retailer 6$5,832 NZD
Retailer 5$6,042 NZD
MOH London$7,772 NZD

28 data points across 14 retailers

14 retailers$3,973 NZD to $7,772 NZD

A
Cheapest Retailer
-
$3,973 NZD
$2,239 USD
A
Retailer 2
-
$3,985 NZD
$2,246 USD
View
A
Retailer 3
-
$4,070 NZD
$2,294 USD
View
Final sale: no returns
A
Retailer 4
-
$4,245 NZD
£1,884 GBP
View
A
Retailer 5
-
$4,383 NZD
$2,470 USD
View
A
Retailer 6
-
$4,413 NZD
$2,487 USD
View
A
Retailer 7
-
$4,661 NZD
$2,627 USD
View
A
Retailer 8
-
$4,715 NZD
£2,092 GBP
View
A
Retailer 9
-
$4,782 NZD
$2,695 USD
View
A
Retailer 10
-
$4,791 NZD
$2,700 USD
View
A
Retailer 11
-
$5,373 NZD
ZAR 48,918 ZAR
View
Retailer 12
-
$5,832 NZD
A$5,057 AUD
View
Price last confirmed 25 days ago
Retailer 13
-
$6,744 NZD
$3,801 USD
View
Price last confirmed 66 days ago
Most Expensive
B+
MOH London
9DFD4E605 · Oct 29
$7,772 NZD
£3,449 GBP
View
13 more retailers have this diamond
Prices start from $3,973 NZDSave up to $3,799 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
1.54ct Cushion
$3,973 NZD