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Cushion|Natural|GIA

1.20ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6551312576

Certificate GIA 6551312576

Diamond specifications and retailer prices

From $3,091 AUD
As of November 6, 2026
Save $4,085 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,429 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551312576. Listed at 15 retailers as of November 6, 2026, with a 132% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551312576
Dimensions7.68 × 5.36 × 3.74 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cavity
Top View
7.68 mm5.36 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551312576
Side View
Table 65.0%CrownGirdle: STK-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 6
Current: $8,429 AUD|Low: $3,074 AUD|High: $8,586 AUD|Avg: $4,833 AUD|+1.3%
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
November 7, 2026
Retailer 11$3,091 AUD
Retailer 7$3,232 AUD
Retailer 10$3,772 AUD
Retailer 3$3,800 AUD
Retailer 8$4,050 AUD
Retailer 12$4,119 AUD
Retailer 5$4,311 AUD
Retailer 13$4,324 AUD
Retailer 6$4,359 AUD
Retailer 4$4,461 AUD
Retailer 9$4,793 AUD
Retailer 2$7,177 AUD
Queensmith$8,429 AUD

25 data points across 13 retailers

15 retailers$3,091 AUD to $7,177 AUD

A
Cheapest Retailer
-
$3,091 AUD
A
Retailer 2
-
$3,232 AUD
View
B+
Retailer 3
-
$3,772 AUD
View
A
Retailer 4
-
$3,800 AUD
View
Final sale: no returns
B+
Retailer 5
-
$4,007 AUD
View
B+
Retailer 6
-
$4,050 AUD
View
Retailer 7
-
$4,119 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,311 AUD
View
B+
Retailer 9
-
$4,324 AUD
View
B+
Retailer 10
-
$4,359 AUD
View
B+
Retailer 11
-
$4,424 AUD
View
B+
Retailer 12
-
$4,461 AUD
View
B+
Retailer 13
-
$4,793 AUD
View
B
Retailer 14
-
$7,177 AUD
View
Most Expensive
Queensmith
6551312576 · Oct 28
$8,429 AUD
£4,560 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $3,091 AUDSave up to $4,085 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
$3,091 AUD