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Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6555133265

Certificate GIA 6555133265

Diamond specifications and retailer prices

From $7,246 AUD
As of November 6, 2026
Save $6,950 AUD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,805 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555133265. Listed at 19 retailers as of November 4, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555133265
Dimensions7.53 × 5.80 × 4.01 mm
L/W Ratio1.30
Top View
7.53 mm5.80 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555133265
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.2%

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 6
Current: $14,805 AUD|Low: $7,190 AUD|High: $14,916 AUD|Avg: $10,036 AUD|+1.4%
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 7, 2026
Retailer 12$7,246 AUD
Retailer 7$7,648 AUD
Retailer 13$8,064 AUD
Retailer 3$8,414 AUD
Retailer 10$8,580 AUD
Retailer 4$8,917 AUD
Retailer 14$8,919 AUD
Retailer 2$9,200 AUD
Retailer 5$9,489 AUD
Retailer 6$9,894 AUD
Retailer 8$10,498 AUD
Retailer 9$11,789 AUD
Retailer 11$14,196 AUD
Queensmith$14,805 AUD

31 data points across 14 retailers

19 retailers$7,246 AUD to $14,196 AUD

A
Cheapest Retailer
-
$7,246 AUD
A
Retailer 2
-
$7,648 AUD
View
B+
Retailer 3
-
$8,064 AUD
View
Retailer 4
-
$8,315 AUD
View
Price last confirmed 24 days ago
B+
Retailer 5
-
$8,414 AUD
View
B+
Retailer 6
-
$8,580 AUD
View
B+
Retailer 7
-
$8,872 AUD
View
B+
Retailer 8
-
$8,878 AUD
View
B+
Retailer 9
-
$8,917 AUD
View
Final sale: no returns
Retailer 10
-
$8,919 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$9,200 AUD
View
B+
Retailer 12
-
$9,489 AUD
View
Retailer 13
-
$9,531 AUD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
$9,836 AUD
View
B+
Retailer 15
-
$9,894 AUD
View
B+
Retailer 16
-
$10,498 AUD
View
B+
Retailer 17
-
$11,789 AUD
View
B
Retailer 18
-
$14,196 AUD
View
Most Expensive
Queensmith
6555133265 · Oct 28
$14,805 AUD
£8,010 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $7,246 AUDSave up to $6,950 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
$7,246 AUD