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Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6541435350

Certificate GIA 6541435350

Diamond specifications and retailer prices

From $3,930 AUD
As of November 6, 2026
Save $4,653 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,279 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-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 6541435350. Listed at 19 retailers as of November 6, 2026, with a 118% 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

1.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541435350
Dimensions7.23 × 5.54 × 3.58 mm
L/W Ratio1.31
Top View
7.23 mm5.54 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541435350
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.7%

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 6
Current: $9,279 AUD|Low: $3,893 AUD|High: $9,436 AUD|Avg: $5,778 AUD|-1.7%
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 16$3,930 AUD
Retailer 11$4,084 AUD
Retailer 7$4,678 AUD
Retailer 6$4,762 AUD
Retailer 15$4,766 AUD
Retailer 3$4,963 AUD
Retailer 2$5,039 AUD
Retailer 5$5,161 AUD
Retailer 10$5,340 AUD
Retailer 4$5,370 AUD
Retailer 13$5,468 AUD
Retailer 8$5,533 AUD
Retailer 12$6,006 AUD
Retailer 14$6,299 AUD
Retailer 9$8,582 AUD
Queensmith$9,279 AUD

24 data points across 16 retailers

19 retailers$3,930 AUD to $8,582 AUD

A
Cheapest Retailer
-
$3,930 AUD
A
Retailer 2
-
$4,084 AUD
View
B+
Retailer 3
-
$4,678 AUD
View
B+
Retailer 4
-
$4,762 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,766 AUD
View
B+
Retailer 6
-
$4,963 AUD
View
B+
Retailer 7
-
$4,973 AUD
View
B+
Retailer 8
-
$5,039 AUD
View
Retailer 9
-
$5,161 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$5,324 AUD
View
B+
Retailer 11
-
$5,340 AUD
View
B+
Retailer 12
-
$5,370 AUD
View
B+
Retailer 13
-
$5,468 AUD
View
B+
Retailer 14
-
$5,533 AUD
View
Retailer 15
-
$5,744 AUD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$6,006 AUD
View
B
Retailer 17
-
$6,299 AUD
View
B
Retailer 18
-
$8,582 AUD
View
Most Expensive
Queensmith
6541435350 · Oct 28
$9,279 AUD
£5,020 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $3,930 AUDSave up to $4,653 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
1.20ct Cushion
$3,930 AUD