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Cushion|Natural|GIA

1.54ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6561590064

Certificate GIA 6561590064

Diamond specifications and retailer prices

From $4,694 AUD
HK$25,700 HKD
As of November 1, 2026
Save $5,400 AUD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,094 AUD at MOH London · As of November 1, 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 I 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 6561590064. Listed at 9 retailers as of November 1, 2026, with prices from $4,694 to $10,094, a $5,400 spread on the same certified stone. MOH London lists it at $10,094. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561590064
Dimensions7.88 × 5.95 × 4.08 mm
L/W Ratio1.32
Key to symbols
Crystal, Cloud, Needle
Top View
7.88 mm5.95 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561590064
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NDepth 68.7%

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: $10,094 AUD|Low: $4,639 AUD|High: $10,299 AUD|Avg: $6,483 AUD|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$4,694 AUD
Retailer 8$5,228 AUD
Retailer 5$5,417 AUD
Retailer 6$5,632 AUD
Retailer 9$5,999 AUD
Retailer 2$6,013 AUD
Retailer 3$7,284 AUD
Retailer 4$8,925 AUD
MOH London$10,094 AUD

8 data points across 9 retailers

9 retailers$4,694 AUD to $10,094 AUD

A
Cheapest Retailer
-
$4,694 AUD
HK$25,700 HKD
A
Retailer 2
-
$5,228 AUD
$3,664 USD
View
A
Retailer 3
-
$5,417 AUD
€3,615 EUR
View
A
Retailer 4
-
$5,632 AUD
$3,947 USD
View
A
Retailer 5
-
$5,999 AUD
SGD 5,681 SGD
View
A
Retailer 6
-
$6,013 AUD
£3,318 GBP
View
B+
Retailer 7
-
$7,284 AUD
€4,862 EUR
View
B
Retailer 8
-
$8,925 AUD
$6,255 USD
View
Most Expensive
B
MOH London
464636367 · Nov 1
$10,094 AUD
£5,570 GBP
View
8 more retailers have this diamond
Prices start from $4,694 AUDSave up to $5,400 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
$4,694 AUD