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1.21ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 587305986

Shape and cutting style on the report: Round brilliant

Certificate IGI 587305986

Diamond specifications and retailer prices

From $2,365 NZD
As of November 5, 2026
Save $3,862 NZD (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,227 NZD 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 587305986. Listed at 12 retailers as of November 5, 2026, with prices from $2,365 to $6,227, a $3,862 spread on the same certified stone. NZ Jewellers lists it at $6,227. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 587305986
Dimensions6.83 × 6.75 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
6.83 mm6.75 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 587305986
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $6,227 NZD|Low: $2,334 NZD|High: $6,227 NZD|Avg: $3,055 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 3$2,363 NZD
Retailer 11$2,365 NZD
Retailer 5$2,531 NZD
Retailer 12$2,553 NZD
Retailer 14$2,553 NZD
Retailer 4$2,626 NZD
Retailer 13$2,672 NZD
Retailer 10$2,946 NZD
Retailer 6$2,996 NZD
Retailer 2$3,034 NZD
Retailer 8$3,326 NZD
Retailer 7$3,530 NZD
Retailer 9$4,676 NZD
NZ Jewellers$6,227 NZD

32 data points across 14 retailers

12 retailers$2,365 NZD to $6,227 NZD

Retailer 1
-
$2,363 NZD
Price last confirmed 43 days ago
A
Retailer 2
-
$2,365 NZD
View
A
Retailer 3
-
$2,553 NZD
View
Retailer 4
-
$2,553 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$2,626 NZD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$2,672 NZD
View
B+
Retailer 7
-
$2,946 NZD
View
A
Retailer 8
-
$3,034 NZD
View
A
Retailer 9
-
$3,326 NZD
View
B+
Retailer 10
-
$3,530 NZD
View
B+
Retailer 11
-
$4,676 NZD
View
Most Expensive
B
NZ Jewellers
f93b802b-2bdf-48fe-8749-353543e40829 · Nov 5
$6,227 NZD
$3,452 USD
View
11 more retailers have this diamond
Prices start from $2,365 NZDSave up to $3,862 NZD

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
$2,365 NZD