Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5546402725

Certificate GIA 5546402725

Diamond specifications and retailer prices

From $4,192 AUD
As of November 6, 2026
Save $4,941 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,547 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 E 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 5546402725. Listed at 21 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546402725
Dimensions7.46 × 5.52 × 3.51 mm
L/W Ratio1.35
Top View
7.46 mm5.52 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546402725
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: $9,547 AUD|Low: $4,154 AUD|High: $9,722 AUD|Avg: $6,042 AUD|-1.8%
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
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 5$4,192 AUD
Retailer 13$4,343 AUD
Retailer 4$4,956 AUD
Retailer 10$4,980 AUD
Retailer 12$5,040 AUD
Retailer 9$5,066 AUD
Retailer 3$5,075 AUD
Retailer 18$5,274 AUD
Retailer 6$5,283 AUD
Retailer 14$5,360 AUD
Retailer 8$5,490 AUD
Retailer 16$5,680 AUD
Retailer 7$5,702 AUD
Retailer 2$5,760 AUD
Retailer 11$5,870 AUD
Retailer 17$6,391 AUD
Retailer 19$6,701 AUD
Retailer 15$9,133 AUD
Queensmith$9,547 AUD

23 data points across 19 retailers

21 retailers$4,192 AUD to $9,133 AUD

A
Cheapest Retailer
-
$4,192 AUD
A
Retailer 2
-
$4,343 AUD
View
B+
Retailer 3
-
$4,956 AUD
View
B+
Retailer 4
-
$4,980 AUD
View
B+
Retailer 5
-
$5,040 AUD
View
B+
Retailer 6
-
$5,066 AUD
View
Final sale: no returns
B+
Retailer 7
-
$5,075 AUD
View
B+
Retailer 8
-
$5,274 AUD
View
B+
Retailer 9
-
$5,283 AUD
View
B+
Retailer 10
-
$5,296 AUD
View
B+
Retailer 11
-
$5,360 AUD
View
Retailer 12
-
$5,490 AUD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$5,680 AUD
View
B+
Retailer 14
-
$5,702 AUD
View
B+
Retailer 15
-
$5,760 AUD
View
B+
Retailer 16
-
$5,870 AUD
View
Retailer 17
-
$6,120 AUD
View
Price last confirmed 34 days ago
B+
Retailer 18
-
$6,391 AUD
View
B
Retailer 19
-
$6,701 AUD
View
B
Retailer 20
-
$9,133 AUD
View
Most Expensive
Queensmith
5546402725 · Oct 28
$9,547 AUD
£5,165 GBP
View
Price last confirmed 10 days ago
20 more retailers have this diamond
Prices start from $4,192 AUDSave up to $4,941 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
$4,192 AUD