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Round|Natural|GIA

1.21ct K IF Round Natural Diamond

EX • K/IF • GIA 2556383879

Certificate GIA 2556383879

Diamond specifications and retailer prices

From $5,015 AUD
As of November 2, 2026
Save $4,347 AUD (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $10,063 AUD at NZ Jewellers · As of September 23, 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 2556383879. Listed at 7 retailers as of November 2, 2026, with a 87% 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
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556383879
Dimensions6.73 × 6.78 × 4.24 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
6.73 mm6.78 mm1.21 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556383879
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°CuletDepth 62.8%

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 2
Current: $5,603 AUD|Low: $5,015 AUD|High: $9,750 AUD|Avg: $7,287 AUD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 2$5,015 AUD
Retailer 1$5,603 AUD
Retailer 4$6,298 AUD
Retailer 3$9,363 AUD
Retailer 5$9,670 AUD

28 data points across 5 retailers

7 retailers$5,015 AUD to $9,363 AUD

A
Cheapest Retailer
-
$5,015 AUD
B+
Retailer 2
-
$5,603 AUD
View
Retailer 3
-
$5,762 AUD
View
Price last confirmed 38 days ago
Retailer 4
-
$5,762 AUD
View
Price last confirmed 34 days ago
Retailer 5
-
$5,775 AUD
View
Price last confirmed 45 days ago
B
Retailer 6
-
$9,363 AUD
View
Most Expensive
NZ Jewellers
963b43c2-b71f-4316-baf5-fd386cd78330 · Sep 23
$10,063 AUD
$6,914 USD
View
Price last confirmed 44 days ago
6 more retailers have this diamond
Prices start from $5,015 AUDSave up to $4,347 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
$5,015 AUD