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Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 2506840307

Certificate GIA 2506840307

Diamond specifications and retailer prices

From $7,114 AUD
As of November 5, 2026
Save $5,864 AUD (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,978 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2506840307. Listed at 6 retailers as of November 5, 2026, with prices from $7,114 to $12,978, a $5,864 spread on the same certified stone. NZ Jewellers lists it at $12,978. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2506840307
Dimensions6.75 × 6.80 × 4.31 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.75 mm6.80 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506840307
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.7%

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 5
Current: $12,978 AUD|Low: $5,673 AUD|High: $12,978 AUD|Avg: $9,349 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 6$7,114 AUD
Retailer 5$7,162 AUD
Retailer 3$8,335 AUD
Retailer 2$8,502 AUD
Retailer 4$12,358 AUD
NZ Jewellers$12,978 AUD

23 data points across 6 retailers

6 retailers$7,114 AUD to $12,978 AUD

A
Cheapest Retailer
-
$7,114 AUD
B+
Retailer 2
-
$7,162 AUD
View
Final sale: no returns
B+
Retailer 3
-
$8,335 AUD
View
B+
Retailer 4
-
$8,502 AUD
View
B
Retailer 5
-
$12,358 AUD
View
Most Expensive
B
NZ Jewellers
4def09ca-a340-4163-8287-51aadf3ed1ad · Nov 5
$12,978 AUD
$8,917 USD
View
5 more retailers have this diamond
Prices start from $7,114 AUDSave up to $5,864 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
$7,114 AUD