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Radiant|Natural|GIA

1.21ct G SI2 Radiant Natural Diamond

EX • G/SI2 • GIA 2245052938

Certificate GIA 2245052938

Diamond specifications and retailer prices

From $3,056 AUD
SGD 2,901 SGD
As of October 31, 2026
Save $2,890 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,946 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded G 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 2245052938. Listed at 11 retailers as of October 31, 2026, with prices from $3,056 to $5,946, a $2,890 spread on the same certified stone. Helzberg Diamonds lists it at $5,946. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245052938
Dimensions7.39 × 5.46 × 3.69 mm
L/W Ratio1.35
Culet sizeNone
Top View
7.39 mm5.46 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245052938
Side View
Table 69.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.6%

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: Oct 31
Current: $5,946 AUD|Low: $3,056 AUD|High: $6,308 AUD|Avg: $4,292 AUD|-5.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$3,056 AUD
Retailer 9$3,290 AUD
Retailer 7$3,317 AUD
Retailer 8$3,318 AUD
Retailer 4$3,586 AUD
Retailer 11$3,612 AUD
Retailer 6$3,912 AUD
Retailer 10$4,101 AUD
Retailer 2$4,272 AUD
Retailer 3$5,560 AUD
Helzberg Diamonds$5,946 AUD

38 data points across 11 retailers

11 retailers$3,056 AUD to $5,946 AUD

A
Cheapest Retailer
-
$3,056 AUD
SGD 2,901 SGD
A
Retailer 2
-
$3,290 AUD
$2,311 USD
View
A
Retailer 3
-
$3,317 AUD
$2,330 USD
View
A
Retailer 4
-
$3,318 AUD
$2,331 USD
View
A
Retailer 5
-
$3,586 AUD
£1,984 GBP
View
A
Retailer 6
-
$3,612 AUD
SGD 3,429 SGD
View
A
Retailer 7
-
$3,912 AUD
$2,748 USD
View
A
Retailer 8
-
$4,101 AUD
$2,881 USD
View
B+
Retailer 9
-
$4,272 AUD
€2,858 EUR
View
B+
Retailer 10
-
$5,560 AUD
$3,906 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRIIKLGLIPJO · Nov 1
$5,946 AUD
$4,177 USD
View
10 more retailers have this diamond
Prices start from $3,056 AUDSave up to $2,890 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 Radiant
$3,056 AUD