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1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 779634139

Shape and cutting style on the report: Round brilliant

Certificate IGI 779634139

Diamond specifications and retailer prices

From $1,898 USD
₹180,808 INR
As of October 30, 2026
Save $3,154 USD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,052 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 779634139. Listed at 11 retailers as of October 30, 2026, with prices from $1,898 to $5,052, a $3,154 spread on the same certified stone. NZ Jewellers lists it at $5,052. 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 779634139
Dimensions6.84 × 6.86 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.84 mm6.86 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 779634139
Side View
Table 57.0%Crown 33.6°Girdle: THN-MEDPavilion 41.3°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,052 USD|Low: $1,888 USD|High: $5,177 USD|Avg: $2,885 USD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,898 USD
Retailer 4$2,139 USD
Retailer 6$2,185 USD
Retailer 9$2,231 USD
Retailer 8$2,408 USD
Retailer 3$2,417 USD
Retailer 11$2,528 USD
Retailer 10$2,788 USD
Retailer 5$2,957 USD
Retailer 7$4,239 USD
NZ Jewellers$5,052 USD

39 data points across 11 retailers

11 retailers$1,898 USD to $5,052 USD

A
Cheapest Retailer
-
$1,898 USD
₹180,808 INR
A
Retailer 2
-
$2,139 USD
£1,684 GBP
View
A
Retailer 3
-
$2,185 USD
View
A
Retailer 4
-
$2,231 USD
View
Final sale: no returns
A
Retailer 5
-
$2,408 USD
View
A
Retailer 6
-
$2,417 USD
View
A
Retailer 7
-
$2,528 USD
View
A
Retailer 8
-
$2,788 USD
View
A
Retailer 9
-
$2,957 USD
€2,816 EUR
View
B+
Retailer 10
-
$4,239 USD
£3,338 GBP
View
Most Expensive
B+
NZ Jewellers
2729b77f-b415-4795-b31a-ecc61c79a24e · Oct 30
$5,052 USD
View
10 more retailers have this diamond
Prices start from $1,898 USDSave up to $3,154 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.

A
1.21ct Round
$1,898 USD