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Cushion|Natural|GIA

1.54ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 2556151788

Certificate GIA 2556151788

Diamond specifications and retailer prices

From $7,227 AUD
As of November 2, 2026
Save $1,928 AUD (21%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $9,154 AUD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 2556151788. Listed at 2 retailers as of November 1, 2026, with prices from $7,227 to $9,154, a $1,928 spread on the same certified stone. 77 Diamonds lists it at $9,154. 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 2556151788
Dimensions6.95 × 6.33 × 4.28 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Needle, Pinpoint
Top View
6.95 mm6.33 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556151788
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $9,154 AUD|Low: $7,226 AUD|High: $9,214 AUD|Avg: $8,182 AUD|+1.8%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$7,226 AUD
77 Diamonds$9,154 AUD

34 data points across 2 retailers

2 retailers$7,227 AUD to $9,154 AUD

B+
Cheapest Retailer
-
$7,227 AUD
Most Expensive
B
77 Diamonds
CUSZ6HXCNVRY · Nov 1
$9,154 AUD
£5,052 GBP
View
1 more retailer has this diamond
Prices start from $7,227 AUDSave up to $1,928 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.

B+
1.54ct Cushion
$7,227 AUD