CaratHunter
Plans
Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1555442161

Certificate GIA 1555442161

Diamond specifications and retailer prices

From $1,806 AUD
As of November 6, 2026
Save $2,480 AUD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,286 AUD at MOH London · As of November 7, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555442161. Listed at 7 retailers as of November 6, 2026, with prices from $1,806 to $4,286, a $2,480 spread on the same certified stone. MOH London lists it at $4,286. 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555442161
Dimensions7.10 × 5.50 × 3.84 mm
L/W Ratio1.29
Key to symbols
Crystal, Feather, Needle
Top View
7.10 mm5.50 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555442161
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.7%

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: $4,286 AUD|Low: $1,806 AUD|High: $4,846 AUD|Avg: $2,824 AUD|-10.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2$1,806 AUD
Retailer 5$2,244 AUD
Retailer 6$2,362 AUD
Retailer 7$2,380 AUD
Retailer 4$2,511 AUD
Retailer 3$3,390 AUD
MOH London$4,286 AUD

34 data points across 7 retailers

7 retailers$1,806 AUD to $4,286 AUD

A
Cheapest Retailer
-
$1,806 AUD
A
Retailer 2
-
$2,244 AUD
View
A
Retailer 3
-
$2,362 AUD
View
A
Retailer 4
-
$2,380 AUD
View
Final sale: no returns
A
Retailer 5
-
$2,511 AUD
View
B+
Retailer 6
-
$3,390 AUD
View
Most Expensive
B
MOH London
90FC66B24 · Nov 7
$4,286 AUD
£2,319 GBP
View
6 more retailers have this diamond
Prices start from $1,806 AUDSave up to $2,480 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
$1,806 AUD