Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 3545136791

Certificate GIA 3545136791

Diamond specifications and retailer prices

From $3,360 USD
Save $2,493 USD (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,853 USD at NZ Jewellers
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545136791. Listed at 5 retailers, with prices from $3,360 to $5,853 at NZ Jewellers, a $2,493 spread on the same certified stone. 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
E
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle51.51°
Pavilion angle34.41°
OriginNatural
Grading LabGIA
CertificateGIA 3545136791
Dimensions7.10 × 5.28 × 3.59 mm
L/W Ratio1.34
Girdle conditionThick
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
7.10 mm5.28 mm1.21 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3545136791
Side View
Table 73.0%Crown 51.51°GirdlePavilion 34.41°CuletDepth 68.0%

Caratlytics Score

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

Price History

Last verified: Sep 28
Current: $5,853 USD|Low: $3,360 USD|High: $5,983 USD|Avg: $4,452 USD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 1, 2026
Retailer 5$3,360 USD
Retailer 4$3,489 USD
Retailer 3$3,587 USD
Retailer 6$3,868 USD
Retailer 7$4,176 USD
Retailer 2$5,687 USD
NZ Jewellers$5,853 USD

14 data points across 7 retailers

5 retailers$3,360 USD to $5,853 USD

B+
Cheapest Retailer
-
$3,360 USD
B+
Retailer 2
-
$3,489 USD
View
B+
Retailer 3
-
$3,587 USD
A$5,519 AUD
View
B
Retailer 4
-
$5,687 USD
£4,478 GBP
View
Most Expensive
B
NZ Jewellers
5b732860-cb56-4a86-a310-8d62c51f839a · Sep 28
$5,853 USD
View
4 more retailers have this diamond
Prices start from $3,360 USDSave up to $2,493 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.

B+
1.21ct Radiant
$3,360 USD