CaratHunter
Plans
Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 7558609256

Certificate GIA 7558609256

Diamond specifications and retailer prices

From $4,209 AUD
As of November 6, 2026
Save $5,136 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,630 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 G 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 7558609256. Listed at 19 retailers as of November 2, 2026, with a 122% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558609256
Dimensions7.46 × 5.35 × 3.58 mm
L/W Ratio1.39
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Indented Natural
Top View
7.46 mm5.35 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558609256
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $9,630 AUD|Low: $4,173 AUD|High: $9,824 AUD|Avg: $6,228 AUD|-2.0%
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
November 7, 2026
Retailer 14$4,209 AUD
Retailer 8$4,368 AUD
Retailer 5$5,005 AUD
Retailer 12$5,132 AUD
Retailer 4$5,158 AUD
Retailer 9$5,420 AUD
Retailer 3$5,587 AUD
Retailer 2$5,659 AUD
Retailer 15$5,800 AUD
Retailer 6$5,969 AUD
Retailer 7$6,017 AUD
Retailer 10$6,504 AUD
Retailer 11$6,820 AUD
Retailer 13$9,345 AUD
Queensmith$9,630 AUD

24 data points across 15 retailers

19 retailers$4,209 AUD to $9,345 AUD

B+
Cheapest Retailer
-
$4,209 AUD
B+
Retailer 2
-
$4,368 AUD
View
B+
Retailer 3
-
$5,005 AUD
View
B+
Retailer 4
-
$5,132 AUD
View
B+
Retailer 5
-
$5,158 AUD
View
Final sale: no returns
B+
Retailer 6
-
$5,354 AUD
View
B+
Retailer 7
-
$5,356 AUD
View
B+
Retailer 8
-
$5,420 AUD
View
Retailer 9
-
$5,587 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$5,659 AUD
View
B
Retailer 11
-
$5,664 AUD
View
B
Retailer 12
-
$5,800 AUD
View
B
Retailer 13
-
$5,969 AUD
View
B
Retailer 14
-
$6,017 AUD
View
Retailer 15
-
$6,251 AUD
View
Price last confirmed 34 days ago
B
Retailer 16
-
$6,504 AUD
View
B
Retailer 17
-
$6,820 AUD
View
B
Retailer 18
-
$9,345 AUD
View
Most Expensive
Queensmith
7558609256 · Oct 28
$9,630 AUD
£5,210 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $4,209 AUDSave up to $5,136 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+
1.20ct Cushion
$4,209 AUD