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Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 2557387267

Certificate GIA 2557387267

Diamond specifications and retailer prices

From $3,986 AUD
As of November 6, 2026
Save $5,421 AUD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,082 AUD at NZ Jewellers · As of September 28, 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 2557387267. Listed at 11 retailers as of November 5, 2026, with a 136% 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
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557387267
Dimensions6.73 × 6.79 × 4.22 mm
L/W Ratio1.01
Top View
6.73 mm6.79 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557387267
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°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: $9,408 AUD|Low: $3,986 AUD|High: $9,969 AUD|Avg: $6,304 AUD|-5.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,986 AUD
Retailer 5$4,646 AUD
Retailer 7$4,867 AUD
Retailer 8$5,104 AUD
Retailer 3$5,549 AUD
Retailer 2$6,276 AUD
Retailer 4$9,005 AUD
NZ Jewellers$9,408 AUD

45 data points across 8 retailers

11 retailers$3,986 AUD to $9,408 AUD

A
Cheapest Retailer
-
$3,986 AUD
A
Retailer 2
-
$4,646 AUD
View
A
Retailer 3
-
$4,867 AUD
View
A
Retailer 4
-
$5,104 AUD
View
Final sale: no returns
A
Retailer 5
-
$5,549 AUD
View
Retailer 6
-
$5,723 AUD
View
Price last confirmed 36 days ago
Retailer 7
-
$5,723 AUD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$6,276 AUD
View
B+
Retailer 9
-
$9,005 AUD
View
B+
Retailer 10
-
$9,408 AUD
View
Most Expensive
NZ Jewellers
c49cbe1c-1fe2-4f6b-9b11-1b00cdaf986d · Sep 28
$10,082 AUD
$6,927 USD
View
Price last confirmed 39 days ago
10 more retailers have this diamond
Prices start from $3,986 AUDSave up to $5,421 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
$3,986 AUD