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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 €1,441 EUR
$1,610 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €1,441 EUR 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 October 31, 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
Color
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: Oct 31
Current: €1,441 EUR|Low: €844 EUR|High: €2,488 EUR|Avg: €1,673 EUR|-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€844 EUR
Retailer 2€1,288 EUR
Retailer 4€1,306 EUR
Retailer 3€1,319 EUR
Brilliant Earth€1,441 EUR
Retailer 6€1,697 EUR
Retailer 9€1,741 EUR
Retailer 5€1,855 EUR
Retailer 10€2,117 EUR
Retailer 8€2,178 EUR

49 data points across 10 retailers

1 retailer

B+
Brilliant Earth
17553233A · Oct 31
€1,441 EUR
$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
€1,441 EUR