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Cushion|Natural|GIA

1.20ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 2546895309

Certificate GIA 2546895309

Diamond specifications and retailer prices

From $1,937 AUD
As of November 6, 2026
Save $2,490 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,427 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546895309. Listed at 20 retailers as of November 4, 2026, with prices from $1,937 to $4,427, a $2,490 spread on the same certified stone. MOH London lists it at $4,427. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.9°
Pavilion angle34.1°
OriginNatural
Grading LabGIA
CertificateGIA 2546895309
Dimensions6.11 × 5.88 × 4.01 mm
L/W Ratio1.04
Top View
6.11 mm5.88 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546895309
Side View
Table 62.0%Crown 38.9°Girdle: STK-VTKPavilion 34.1°Culet: NDepth 68.2%

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: $4,427 AUD|Low: $1,918 AUD|High: $4,543 AUD|Avg: $2,648 AUD|-2.6%
MOH London
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
November 7, 2026
Retailer 15$1,937 AUD
Retailer 10$2,119 AUD
Retailer 9$2,126 AUD
Retailer 3$2,132 AUD
Retailer 14$2,180 AUD
Retailer 8$2,240 AUD
Retailer 6$2,295 AUD
Retailer 16$2,295 AUD
Retailer 5$2,387 AUD
Retailer 11$2,458 AUD
Retailer 4$2,532 AUD
Retailer 17$2,532 AUD
Retailer 18$2,620 AUD
Retailer 2$2,812 AUD
Retailer 7$3,083 AUD
Retailer 13$3,093 AUD
Retailer 12$3,218 AUD
MOH London$4,427 AUD

28 data points across 18 retailers

20 retailers$1,937 AUD to $4,427 AUD

A
Cheapest Retailer
-
$1,937 AUD
A
Retailer 2
-
$2,119 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,126 AUD
View
A
Retailer 4
-
$2,132 AUD
View
A
Retailer 5
-
$2,180 AUD
View
A
Retailer 6
-
$2,187 AUD
View
A
Retailer 7
-
$2,240 AUD
View
B+
Retailer 8
-
$2,295 AUD
View
Retailer 9
-
$2,295 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$2,387 AUD
View
A
Retailer 11
-
$2,458 AUD
View
A
Retailer 12
-
$2,532 AUD
View
A
Retailer 13
-
$2,532 AUD
View
A
Retailer 14
-
$2,620 AUD
View
B+
Retailer 15
-
$2,812 AUD
View
B+
Retailer 16
-
$3,083 AUD
View
B+
Retailer 17
-
$3,093 AUD
View
B+
Retailer 18
-
$3,218 AUD
View
Retailer 19
-
$3,403 AUD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
B4EA93372 · Nov 4
$4,427 AUD
£2,395 GBP
View
19 more retailers have this diamond
Prices start from $1,937 AUDSave up to $2,490 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
$1,937 AUD