Radiant|Natural|GIA

1.21ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 2437946155

Certificate GIA 2437946155

Diamond specifications and retailer prices

From $3,335 USD
As of November 4, 2026
Save $1,593 USD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,928 USD 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 $3,335 to $4,928, a $1,593 spread on the same certified stone. 77 Diamonds lists it at $4,928. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,928 USD|Low: $3,137 USD|High: $4,987 USD|Avg: $3,693 USD|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$3,335 USD
Retailer 3$3,361 USD
Retailer 4$3,417 USD
Retailer 2$3,451 USD
77 Diamonds$4,928 USD

39 data points across 5 retailers

6 retailers$3,335 USD to $4,928 USD

B+
Cheapest Retailer
-
$3,335 USD
B+
Retailer 2
-
$3,361 USD
View
B+
Retailer 3
-
$3,417 USD
View
B+
Retailer 4
-
$3,451 USD
View
Final sale: no returns
B
Retailer 5
-
$3,598 USD
View
Most Expensive
B
77 Diamonds
RADZXCYGQPAM · Nov 7
$4,928 USD
£3,880 GBP
View
5 more retailers have this diamond
Prices start from $3,335 USDSave up to $1,593 USD

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
$3,335 USD