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Round|Natural|GIA

1.21ct I IF Round Natural Diamond

EX • I/IF • GIA 7558513629

Certificate GIA 7558513629

Diamond specifications and retailer prices

From $5,811 AUD
As of November 6, 2026
Save $2,477 AUD (30%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,486 AUD at MOH London · As of October 29, 2026
View at MOH London

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 7558513629. Listed at 8 retailers as of November 6, 2026, with a 43% 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558513629
Dimensions6.80 × 6.84 × 4.21 mm
L/W Ratio1.01
Top View
6.80 mm6.84 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558513629
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.8%

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 6
Current: $12,486 AUD|Low: $5,811 AUD|High: $12,731 AUD|Avg: $8,034 AUD|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$5,811 AUD
Retailer 7$6,210 AUD
Retailer 4$6,782 AUD
Retailer 5$7,558 AUD
Retailer 8$7,961 AUD
Retailer 6$8,008 AUD
Retailer 3$8,289 AUD
MOH London$12,486 AUD

44 data points across 8 retailers

8 retailers$5,811 AUD to $8,289 AUD

A
Cheapest Retailer
-
$5,811 AUD
A
Retailer 2
-
$6,210 AUD
View
Final sale: no returns
A
Retailer 3
-
$6,782 AUD
View
Retailer 4
-
$7,558 AUD
View
Price last confirmed 7 days ago
Retailer 5
-
$7,961 AUD
View
Price last confirmed 28 days ago
Retailer 6
-
$8,008 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$8,289 AUD
View
Most Expensive
MOH London
447FB72D3 · Oct 29
$12,486 AUD
£6,755 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from $5,811 AUDSave up to $2,477 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
$5,811 AUD