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Cushion|Natural|GIA

1.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2554824183

Certificate GIA 2554824183

Diamond specifications and retailer prices

From $5,845 AUD
HK$32,000 HKD
As of November 1, 2026
Save $7,303 AUD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,147 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554824183. Listed at 16 retailers as of October 28, 2026, with prices from $5,845 to $13,147, a $7,303 spread on the same certified stone. Queensmith lists it at $13,147. 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

1.50
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554824183
Dimensions7.59 × 5.90 × 4.13 mm
L/W Ratio1.29
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Natural
Top View
7.59 mm5.90 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554824183
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.9%

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: $13,147 AUD|Low: $5,790 AUD|High: $13,193 AUD|Avg: $7,904 AUD|+2.4%
Queensmith
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 10$5,845 AUD
Retailer 14$6,166 AUD
Retailer 11$6,264 AUD
Retailer 3$6,270 AUD
Retailer 13$6,525 AUD
Retailer 4$6,641 AUD
Retailer 5$7,007 AUD
Retailer 12$7,070 AUD
Retailer 2$7,353 AUD
Retailer 8$7,615 AUD
Retailer 6$8,613 AUD
Retailer 7$8,831 AUD
Retailer 9$12,430 AUD
Queensmith$13,147 AUD

35 data points across 14 retailers

16 retailers$5,845 AUD to $13,147 AUD

A
Cheapest Retailer
-
$5,845 AUD
HK$32,000 HKD
A
Retailer 2
-
$6,166 AUD
$4,321 USD
View
A
Retailer 3
-
$6,264 AUD
$4,390 USD
View
A
Retailer 4
-
$6,270 AUD
$4,394 USD
View
A
Retailer 5
-
$6,525 AUD
$4,573 USD
View
Final sale: no returns
A
Retailer 6
-
$6,641 AUD
$4,654 USD
View
A
Retailer 7
-
$7,007 AUD
$4,910 USD
View
Retailer 8
-
$7,070 AUD
$4,955 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$7,221 AUD
View
A
Retailer 10
-
$7,353 AUD
£4,058 GBP
View
Retailer 11
-
$7,365 AUD
SGD 6,975 SGD
View
Price last confirmed 28 days ago
A
Retailer 12
-
$7,615 AUD
£4,202 GBP
View
Retailer 13
-
$8,613 AUD
$6,036 USD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$8,831 AUD
€5,894 EUR
View
B
Retailer 15
-
$12,430 AUD
£6,859 GBP
View
Most Expensive
B
Queensmith
2554824183 · Oct 28
$13,147 AUD
£7,255 GBP
View
15 more retailers have this diamond
Prices start from $5,845 AUDSave up to $7,303 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
$5,845 AUD