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Round|Natural|GIA

1.21ct K IF Round Natural Diamond

EX • K/IF • GIA 5556800658

Certificate GIA 5556800658

Diamond specifications and retailer prices

From $3,167 AUD
As of November 6, 2026
Save $5,667 AUD (64%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,834 AUD at NZ Jewellers · As of November 7, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5556800658. Listed at 9 retailers as of November 6, 2026, with prices from $3,167 to $8,834, a $5,667 spread on the same certified stone. NZ Jewellers lists it at $8,834. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556800658
Dimensions6.72 × 6.77 × 4.21 mm
L/W Ratio1.01
Top View
6.72 mm6.77 mm1.21 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5556800658
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 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: $8,834 AUD|Low: $3,167 AUD|High: $9,121 AUD|Avg: $5,184 AUD|+7.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9$3,167 AUD
Retailer 8$3,868 AUD
Retailer 7$4,295 AUD
Retailer 4$4,388 AUD
Retailer 5$4,403 AUD
Retailer 2$4,576 AUD
Retailer 3$4,868 AUD
Retailer 6$7,162 AUD
NZ Jewellers$8,834 AUD

39 data points across 9 retailers

9 retailers$3,167 AUD to $8,834 AUD

A
Cheapest Retailer
-
$3,167 AUD
A
Retailer 2
-
$3,868 AUD
View
A
Retailer 3
-
$4,295 AUD
View
A
Retailer 4
-
$4,388 AUD
View
A
Retailer 5
-
$4,403 AUD
View
A
Retailer 6
-
$4,576 AUD
View
A
Retailer 7
-
$4,868 AUD
View
B+
Retailer 8
-
$7,162 AUD
View
Most Expensive
B
NZ Jewellers
d4a2d80d-02a2-405c-b5bc-e92a39e7fa91 · Nov 7
$8,834 AUD
$6,070 USD
View
8 more retailers have this diamond
Prices start from $3,167 AUDSave up to $5,667 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
$3,167 AUD