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Radiant|Natural|GIA

1.22ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 6551558744

Certificate GIA 6551558744

Diamond specifications and retailer prices

From $4,520 AUD
As of November 4, 2026
Save $4,078 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,599 AUD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.22ct natural radiant diamond

This 1.22ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551558744. Listed at 12 retailers as of November 4, 2026, with prices from $4,520 to $8,599, a $4,078 spread on the same certified stone. Helzberg Diamonds lists it at $8,599. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551558744
Dimensions6.94 × 5.33 × 3.67 mm
L/W Ratio1.30
Culet sizeNone
Top View
6.94 mm5.33 mm1.22 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551558744
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 4
Current: $8,599 AUD|Low: $4,520 AUD|High: $8,772 AUD|Avg: $6,067 AUD|+1.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9$4,520 AUD
Retailer 5$4,631 AUD
Retailer 7$4,873 AUD
Retailer 8$4,883 AUD
Retailer 2$5,273 AUD
Retailer 3$5,445 AUD
Retailer 10$5,776 AUD
Retailer 12$5,870 AUD
Retailer 6$6,027 AUD
Retailer 4$7,623 AUD
Retailer 11$8,176 AUD
Helzberg Diamonds$8,599 AUD

43 data points across 12 retailers

12 retailers$4,520 AUD to $8,599 AUD

A
Cheapest Retailer
-
$4,520 AUD
A
Retailer 2
-
$4,631 AUD
View
B+
Retailer 3
-
$4,873 AUD
View
B+
Retailer 4
-
$4,883 AUD
View
B+
Retailer 5
-
$5,273 AUD
View
B+
Retailer 6
-
$5,445 AUD
View
B+
Retailer 7
-
$5,776 AUD
View
B+
Retailer 8
-
$5,870 AUD
View
B+
Retailer 9
-
$6,027 AUD
View
B
Retailer 10
-
$7,623 AUD
View
B
Retailer 11
-
$8,176 AUD
View
Most Expensive
B
Helzberg Diamonds
XZRMLLHLLONKK · Nov 4
$8,599 AUD
$5,908 USD
View
11 more retailers have this diamond
Prices start from $4,520 AUDSave up to $4,078 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 Radiant
$4,520 AUD