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Cushion|Natural|GIA

1.22ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 2557555836

Certificate GIA 2557555836

Diamond specifications and retailer prices

From $2,249 AUD
As of November 5, 2026
Save $415 AUD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,663 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.22ct natural cushion diamond

This 1.22ct 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 2557555836. Listed at 3 retailers as of November 5, 2026, with prices from $2,249 to $2,663, a $415 spread on the same certified stone. Blue Nile lists it at $2,663. 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

1.22
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle57.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557555836
Dimensions6.12 × 6.02 × 4.05 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
6.12 mm6.02 mm1.22 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557555836
Side View
Table 62.0%Crown 36.6°Girdle: MED-VTKPavilion 57.2°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,663 AUD|Low: $2,249 AUD|High: $2,748 AUD|Avg: $2,468 AUD|-3.1%
Blue Nile
Retailer 2
Retailer 3
November 7, 2026
Retailer 3$2,249 AUD
Retailer 2$2,400 AUD
Blue Nile$2,663 AUD

40 data points across 3 retailers

3 retailers$2,249 AUD to $2,663 AUD

A
Cheapest Retailer
-
$2,249 AUD
A
Retailer 2
-
$2,400 AUD
View
Most Expensive
B+
Blue Nile
29486639 · Nov 5
$2,663 AUD
$1,830 USD
View
2 more retailers have this diamond
Prices start from $2,249 AUDSave up to $415 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
1.22ct Cushion
$2,249 AUD