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Round|Natural|GIA

1.21ct K I1 Round Natural Diamond

EX • K/I1

Diamond specifications and retailer prices

From $3,054 AUD
As of November 6, 2026
Save $3,466 AUD (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $6,520 AUD 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 I1 clarity (included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of November 5, 2026, with prices from $3,054 to $6,520, a $3,466 spread on the same certified stone. NZ Jewellers lists it at $6,520. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.76 × 6.80 × 4.27 mm
L/W Ratio1.01
Top View
6.76 mm6.80 mm1.21 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCuletDepth 62.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $6,520 AUD|Low: $3,054 AUD|High: $6,520 AUD|Avg: $4,209 AUD
NZ Jewellers
Retailer 2
September 10, 2026
Retailer 2$3,054 AUD
NZ Jewellers$6,520 AUD

2 data points across 2 retailers

2 retailers$3,054 AUD to $6,520 AUD

B
Cheapest Retailer
-
$3,054 AUD
Most Expensive
C
NZ Jewellers
d57963b9-b883-4607-9a89-56809a35231f · Nov 5
$6,520 AUD
$4,564 USD
View
1 more retailer has this diamond
Prices start from $3,054 AUDSave up to $3,466 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.

B
1.21ct Round
$3,054 AUD