Radiant|Natural|GIA

1.21ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 2221947165

Certificate GIA 2221947165

Diamond specifications and retailer prices

From $3,826 USD
£3,012 GBP
As of November 1, 2026
Save $2,915 USD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,741 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2221947165. Listed at 6 retailers as of October 30, 2026, with prices from $3,826 to $6,741, a $2,915 spread on the same certified stone. NZ Jewellers lists it at $6,741. 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
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle47°
Pavilion angle55.9°
OriginNatural
Grading LabGIA
CertificateGIA 2221947165
Dimensions7.48 × 5.45 × 3.63 mm
L/W Ratio1.37
Girdle conditionPolished
Key to symbols
Feather, Needle, Pinpoint
Top View
7.48 mm5.45 mm1.21 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2221947165
Side View
Table 67.0%Crown 47°Girdle: 3.2Pavilion 55.9°Culet: NoneDepth 66.6%

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 1
Current: $6,741 USD|Low: $3,824 USD|High: $6,741 USD|Avg: $4,689 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2$3,826 USD
Retailer 5$3,869 USD
Retailer 6$3,905 USD
Retailer 4$4,018 USD
Retailer 3$6,480 USD
NZ Jewellers$6,741 USD

10 data points across 6 retailers

6 retailers$3,826 USD to $6,741 USD

B+
Cheapest Retailer
-
$3,826 USD
£3,012 GBP
B
Retailer 2
-
$3,869 USD
View
B
Retailer 3
-
$3,905 USD
View
B
Retailer 4
-
$4,018 USD
View
B
Retailer 5
-
$6,480 USD
£5,102 GBP
View
Most Expensive
B
NZ Jewellers
bf434a6d-53a7-4ea6-bba1-ea64f40fe78c · Oct 30
$6,741 USD
View
5 more retailers have this diamond
Prices start from $3,826 USDSave up to $2,915 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
$3,826 USD