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Round|Natural|IGI

1.21ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 816643819

Shape and cutting style on the report: Round brilliant

Certificate IGI 816643819

Diamond specifications and retailer prices

From $2,448 AUD
As of November 6, 2026
Save $3,831 AUD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,280 AUD at NZ Jewellers · As of November 2, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 816643819. Listed at 11 retailers as of November 2, 2026, with prices from $2,448 to $6,280, a $3,831 spread on the same certified stone. NZ Jewellers lists it at $6,280. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 816643819
Dimensions6.76 × 6.81 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.76 mm6.81 mm1.21 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 816643819
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°CuletDepth 62.5%

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: $2,448 AUD|Low: $2,448 AUD|High: $5,325 AUD|Avg: $3,548 AUD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$2,448 AUD
Retailer 2$2,794 AUD
Retailer 7$3,143 AUD
Retailer 6$3,471 AUD
Retailer 4$3,666 AUD
Retailer 3$3,826 AUD
Retailer 5$5,248 AUD

41 data points across 7 retailers

11 retailers$2,448 AUD to $6,280 AUD

A
Cheapest Retailer
-
$2,448 AUD
A
Retailer 2
-
$2,794 AUD
View
A
Retailer 3
-
$3,004 AUD
View
A
Retailer 4
-
$3,143 AUD
View
B+
Retailer 5
-
$3,201 AUD
View
B+
Retailer 6
-
$3,466 AUD
View
B+
Retailer 7
-
$3,471 AUD
View
B+
Retailer 8
-
$3,666 AUD
View
B+
Retailer 9
-
$3,826 AUD
View
B
Retailer 10
-
$5,248 AUD
View
Most Expensive
B
NZ Jewellers
3c70d52b-20c1-4940-87e6-d516f0da60f4 · Nov 2
$6,280 AUD
$4,396 USD
View
10 more retailers have this diamond
Prices start from $2,448 AUDSave up to $3,831 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
$2,448 AUD