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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 1447136627

Certificate GIA 1447136627

Diamond specifications and retailer prices

From $2,063 AUD
$1,446 USD
As of November 2, 2026
Save $1,855 AUD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,918 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1447136627. Listed at 8 retailers as of November 2, 2026, with prices from $2,063 to $3,918, a $1,855 spread on the same certified stone. MOH London lists it at $3,918. 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

1.21
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1447136627
Dimensions6.36 × 5.71 × 3.92 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Knot
Top View
6.36 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1447136627
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 2
Current: $3,918 AUD|Low: $1,891 AUD|High: $3,965 AUD|Avg: $2,545 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$2,002 AUD
Retailer 8$2,063 AUD
Retailer 11$2,083 AUD
Retailer 7$2,155 AUD
Retailer 6$2,236 AUD
Retailer 3$2,393 AUD
Retailer 4$2,505 AUD
Retailer 5$2,729 AUD
Retailer 9$2,918 AUD
Retailer 2$3,052 AUD
MOH London$3,918 AUD

33 data points across 11 retailers

8 retailers$2,063 AUD to $3,918 AUD

B+
Cheapest Retailer
-
$2,063 AUD
$1,446 USD
Final sale: no returns
B+
Retailer 2
-
$2,155 AUD
$1,510 USD
View
Retailer 3
-
$2,236 AUD
$1,567 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$2,505 AUD
£1,382 GBP
View
B+
Retailer 5
-
$2,729 AUD
ZAR 30,901 ZAR
View
Retailer 6
-
$2,918 AUD
View
Price last confirmed 28 days ago
B
Retailer 7
-
$3,052 AUD
€2,037 EUR
View
Most Expensive
B
MOH London
C2280FB64 · Nov 2
$3,918 AUD
£2,162 GBP
View
7 more retailers have this diamond
Prices start from $2,063 AUDSave up to $1,855 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+
1.21ct Cushion
$2,063 AUD