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Round|Natural|IGI

1.21ct M IF Round Natural Diamond

EX • M/IF • IGI 523201890

Shape and cutting style on the report: Round brilliant

Certificate IGI 523201890

Diamond specifications and retailer prices

From $1,499 USD
As of November 6, 2026
Save $2,546 USD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,045 USD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 523201890. Listed at 11 retailers as of November 5, 2026, with prices from $1,499 to $4,045, a $2,546 spread on the same certified stone. NZ Jewellers lists it at $4,045. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
M
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.4°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 523201890
Dimensions6.78 × 6.81 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT Minor graining
Top View
6.78 mm6.81 mm1.21 ctM / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 523201890
Side View
Table 58.5%Crown 35.4°GirdlePavilion 40.9°Culet: NoneDepth 62.0%

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: Nov 6
Current: $4,045 USD|Low: $1,498 USD|High: $4,045 USD|Avg: $2,039 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,499 USD
Retailer 6$1,658 USD
Retailer 10$1,658 USD
Retailer 3$1,730 USD
Retailer 8$1,735 USD
Retailer 11$1,794 USD
Retailer 9$1,914 USD
Retailer 5$2,024 USD
Retailer 4$2,248 USD
Retailer 7$2,362 USD
NZ Jewellers$4,045 USD

37 data points across 11 retailers

11 retailers$1,499 USD to $4,045 USD

A
Cheapest Retailer
-
$1,499 USD
A
Retailer 2
-
$1,537 USD
View
A
Retailer 3
-
$1,658 USD
View
A
Retailer 4
-
$1,730 USD
View
A
Retailer 5
-
$1,735 USD
View
A
Retailer 6
-
$1,794 USD
View
A
Retailer 7
-
$1,914 USD
View
A
Retailer 8
-
$2,024 USD
View
A
Retailer 9
-
$2,248 USD
View
B+
Retailer 10
-
$2,362 USD
View
Most Expensive
B
NZ Jewellers
c7801b19-7fbf-4829-a097-3a750cf755c2 · Nov 5
$4,045 USD
View
10 more retailers have this diamond
Prices start from $1,499 USDSave up to $2,546 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
$1,499 USD