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Radiant|Natural|GIA

1.21ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 2437946155

Certificate GIA 2437946155

Diamond specifications and retailer prices

From $4,854 AUD
As of November 4, 2026
Save $2,318 AUD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,172 AUD at 77 Diamonds · As of November 7, 2026
View at 77 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2437946155. Listed at 6 retailers as of November 4, 2026, with prices from $4,854 to $7,172, a $2,318 spread on the same certified stone. 77 Diamonds lists it at $7,172. 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

1.21
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle46.26°
Pavilion angle29.17°
OriginNatural
Grading LabGIA
CertificateGIA 2437946155
Dimensions6.83 × 5.56 × 3.40 mm
L/W Ratio1.23
Top View
6.83 mm5.56 mm1.21 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2437946155
Side View
Table 73.0%Crown 46.26°Girdle: ThickPavilion 29.17°Culet: NoneDepth 61.2%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $7,172 AUD|Low: $4,566 AUD|High: $7,259 AUD|Avg: $5,374 AUD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$4,854 AUD
Retailer 3$4,892 AUD
Retailer 4$4,973 AUD
Retailer 2$5,023 AUD
77 Diamonds$7,172 AUD

39 data points across 5 retailers

6 retailers$4,854 AUD to $7,172 AUD

B+
Cheapest Retailer
-
$4,854 AUD
B+
Retailer 2
-
$4,892 AUD
View
B+
Retailer 3
-
$4,973 AUD
View
B+
Retailer 4
-
$5,023 AUD
View
Final sale: no returns
B
Retailer 5
-
$5,237 AUD
View
Most Expensive
B
77 Diamonds
RADZXCYGQPAM · Nov 7
$7,172 AUD
£3,880 GBP
View
5 more retailers have this diamond
Prices start from $4,854 AUDSave up to $2,318 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+
1.21ct Radiant
$4,854 AUD