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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 $3,056 AUD
As of November 4, 2026
Save $4,018 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,161 AUD 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: $7,075 AUD|Low: $3,056 AUD|High: $7,332 AUD|Avg: $4,047 AUD|-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$3,056 AUD
Retailer 2$3,148 AUD
Retailer 6$3,161 AUD
Retailer 5$3,173 AUD
Retailer 3$3,384 AUD
Retailer 4$3,384 AUD
Retailer 7$3,508 AUD
Retailer 14$3,540 AUD
Retailer 11$3,719 AUD
Retailer 8$3,882 AUD
Retailer 15$3,905 AUD
Retailer 9$4,129 AUD
Retailer 10$4,197 AUD
Retailer 13$5,912 AUD
NZ Jewellers$7,075 AUD

24 data points across 15 retailers

18 retailers$3,056 AUD to $7,075 AUD

A
Cheapest Retailer
-
$3,056 AUD
A
Retailer 2
-
$3,148 AUD
View
A
Retailer 3
-
$3,173 AUD
View
Retailer 4
-
$3,336 AUD
View
Price last confirmed 102 days ago
A
Retailer 5
-
$3,384 AUD
View
A
Retailer 6
-
$3,384 AUD
View
Retailer 7
-
$3,425 AUD
View
Price last confirmed 15 days ago
Retailer 8
-
$3,508 AUD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$3,540 AUD
View
A
Retailer 10
-
$3,719 AUD
View
B+
Retailer 11
-
$3,882 AUD
View
B+
Retailer 12
-
$3,905 AUD
View
Retailer 13
-
$4,047 AUD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$4,129 AUD
View
B+
Retailer 15
-
$4,197 AUD
View
B
Retailer 16
-
$5,912 AUD
View
B
Retailer 17
-
$7,075 AUD
View
Most Expensive
NZ Jewellers
d7fcadd0-0be9-40fd-a6c5-aa36aa4a8791 · Sep 21
$7,161 AUD
$4,920 USD
View
Price last confirmed 46 days ago
17 more retailers have this diamond
Prices start from $3,056 AUDSave up to $4,018 AUD

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
$3,056 AUD