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Radiant|Natural|GIA

1.21ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2235863597

Certificate GIA 2235863597

Diamond specifications and retailer prices

From $2,297 AUD
$1,610 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $2,297 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant 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 2235863597. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235863597
Dimensions6.84 × 5.42 × 3.72 mm
L/W Ratio1.26
Culet sizeNone
Top View
6.84 mm5.42 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235863597
Side View
Table 69.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $2,297 AUD|Low: $1,346 AUD|High: $3,966 AUD|Avg: $2,668 AUD|-21.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 3, 2026
Retailer 7$1,346 AUD
Retailer 2$2,053 AUD
Retailer 4$2,082 AUD
Retailer 3$2,102 AUD
Brilliant Earth$2,297 AUD
Retailer 6$2,706 AUD
Retailer 9$2,776 AUD
Retailer 5$2,957 AUD
Retailer 10$3,376 AUD
Retailer 8$3,473 AUD

49 data points across 10 retailers

1 retailer

B+
Brilliant Earth
17553233A · Nov 2
$2,297 AUD
$1,610 USD
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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
$2,297 AUD