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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 3435760109

Certificate GIA 3435760109

Diamond specifications and retailer prices

From $1,999 AUD
$1,401 USD
As of November 2, 2026
Save $2,189 AUD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,188 AUD at MOH London · As of November 1, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3435760109. Listed at 14 retailers as of November 1, 2026, with prices from $1,999 to $4,188, a $2,189 spread on the same certified stone. MOH London lists it at $4,188. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3435760109
Dimensions5.81 × 5.71 × 4.00 mm
L/W Ratio1.02
Top View
5.81 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3435760109
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

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 2
Current: $4,188 AUD|Low: $1,665 AUD|High: $4,237 AUD|Avg: $2,680 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$1,999 AUD
Retailer 5$2,019 AUD
Retailer 2$2,331 AUD
Retailer 8$2,409 AUD
Retailer 3$2,678 AUD
Retailer 4$2,917 AUD
Retailer 7$3,119 AUD
MOH London$4,188 AUD

40 data points across 8 retailers

14 retailers$1,999 AUD to $4,188 AUD

A
Cheapest Retailer
-
$1,999 AUD
$1,401 USD
Final sale: no returns
A
Retailer 2
-
$2,008 AUD
$1,407 USD
View
A
Retailer 3
-
$2,019 AUD
$1,415 USD
View
B+
Retailer 4
-
$2,286 AUD
$1,602 USD
View
B+
Retailer 5
-
$2,290 AUD
$1,605 USD
View
A
Retailer 6
-
$2,331 AUD
£1,286 GBP
View
B+
Retailer 7
-
$2,409 AUD
$1,688 USD
View
B+
Retailer 8
-
$2,554 AUD
$1,790 USD
View
B+
Retailer 9
-
$2,554 AUD
$1,790 USD
View
B+
Retailer 10
-
$2,640 AUD
$1,850 USD
View
B+
Retailer 11
-
$2,678 AUD
£1,478 GBP
View
B+
Retailer 12
-
$2,917 AUD
ZAR 33,028 ZAR
View
Retailer 13
-
$3,119 AUD
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
8D42DC9CD · Nov 1
$4,188 AUD
£2,311 GBP
View
13 more retailers have this diamond
Prices start from $1,999 AUDSave up to $2,189 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
1.21ct Cushion
$1,999 AUD