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Round|Natural|IGI

1.21ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 642405173

Shape and cutting style on the report: Round brilliant

Certificate IGI 642405173

Diamond specifications and retailer prices

From $3,788 NZD
As of November 4, 2026
Save $4,981 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,875 NZD at NZ Jewellers · As of September 21, 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 642405173. Listed at 18 retailers as of November 4, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 642405173
Dimensions6.80 × 6.86 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.80 mm6.86 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642405173
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.1%

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 4
Current: $8,769 NZD|Low: $3,788 NZD|High: $9,088 NZD|Avg: $5,016 NZD|-3.5%
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
Retailer 15
November 6, 2026
Retailer 12$3,788 NZD
Retailer 2$3,902 NZD
Retailer 6$3,918 NZD
Retailer 5$3,933 NZD
Retailer 3$4,194 NZD
Retailer 4$4,194 NZD
Retailer 7$4,347 NZD
Retailer 14$4,387 NZD
Retailer 11$4,609 NZD
Retailer 8$4,811 NZD
Retailer 15$4,840 NZD
Retailer 9$5,118 NZD
Retailer 10$5,202 NZD
Retailer 13$7,327 NZD
NZ Jewellers$8,769 NZD

24 data points across 15 retailers

18 retailers$3,788 NZD to $8,769 NZD

A
Cheapest Retailer
-
$3,788 NZD
A
Retailer 2
-
$3,902 NZD
View
A
Retailer 3
-
$3,933 NZD
View
Retailer 4
-
$4,135 NZD
View
Price last confirmed 103 days ago
A
Retailer 5
-
$4,194 NZD
View
A
Retailer 6
-
$4,194 NZD
View
Retailer 7
-
$4,245 NZD
View
Price last confirmed 16 days ago
Retailer 8
-
$4,347 NZD
View
Price last confirmed 22 days ago
A
Retailer 9
-
$4,387 NZD
View
A
Retailer 10
-
$4,609 NZD
View
B+
Retailer 11
-
$4,811 NZD
View
B+
Retailer 12
-
$4,840 NZD
View
Retailer 13
-
$5,017 NZD
View
Price last confirmed 17 days ago
B+
Retailer 14
-
$5,118 NZD
View
B+
Retailer 15
-
$5,202 NZD
View
B
Retailer 16
-
$7,327 NZD
View
B
Retailer 17
-
$8,769 NZD
View
Most Expensive
NZ Jewellers
d7fcadd0-0be9-40fd-a6c5-aa36aa4a8791 · Sep 21
$8,875 NZD
$4,920 USD
View
Price last confirmed 46 days ago
17 more retailers have this diamond
Prices start from $3,788 NZDSave up to $4,981 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
$3,788 NZD