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Radiant|Natural|GIA

1.22ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 5166772275

Certificate GIA 5166772275

Diamond specifications and retailer prices

From $4,209 AUD
As of November 6, 2026
Save $1,980 AUD (32%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,189 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.22ct natural radiant diamond

This 1.22ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5166772275. Listed at 4 retailers as of November 6, 2026, with prices from $4,209 to $6,189, a $1,980 spread on the same certified stone. 77 Diamonds lists it at $6,189. 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

1.22
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5166772275
Dimensions7.18 × 5.29 × 3.46 mm
L/W Ratio1.36
Top View
7.18 mm5.29 mm1.22 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5166772275
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,189 AUD|Low: $4,209 AUD|High: $6,531 AUD|Avg: $4,872 AUD|-3.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$4,209 AUD
Retailer 2$4,247 AUD
Retailer 4$4,352 AUD
77 Diamonds$6,189 AUD

34 data points across 4 retailers

4 retailers$4,209 AUD to $6,189 AUD

B+
Cheapest Retailer
-
$4,209 AUD
B+
Retailer 2
-
$4,247 AUD
View
B+
Retailer 3
-
$4,352 AUD
View
Most Expensive
B
77 Diamonds
RADDHASHJMFPT · Nov 6
$6,189 AUD
£3,348 GBP
View
3 more retailers have this diamond
Prices start from $4,209 AUDSave up to $1,980 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+
1.22ct Radiant
$4,209 AUD