CaratHunter
Plans
Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1509523552

Certificate GIA 1509523552

Diamond specifications and retailer prices

From $4,393 AUD
As of November 6, 2026
Save $4,327 AUD (50%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,720 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1509523552. Listed at 12 retailers as of November 5, 2026, with prices from $4,393 to $8,720, a $4,327 spread on the same certified stone. NZ Jewellers lists it at $8,720. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1509523552
Dimensions6.75 × 6.80 × 4.23 mm
L/W Ratio1.01
Top View
6.75 mm6.80 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1509523552
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.0%

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: $4,393 AUD|Low: $4,388 AUD|High: $8,470 AUD|Avg: $5,611 AUD|-1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$4,393 AUD
Retailer 6$4,443 AUD
Retailer 3$5,147 AUD
Retailer 2$5,195 AUD
Retailer 7$5,197 AUD
Retailer 4$5,821 AUD
Retailer 5$8,347 AUD

40 data points across 7 retailers

12 retailers$4,393 AUD to $8,720 AUD

A
Cheapest Retailer
-
$4,393 AUD
A
Retailer 2
-
$4,443 AUD
View
Retailer 3
-
$4,535 AUD
View
Price last confirmed 43 days ago
A
Retailer 4
-
$5,004 AUD
View
Retailer 5
-
$5,004 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$5,147 AUD
View
B+
Retailer 7
-
$5,195 AUD
View
B+
Retailer 8
-
$5,197 AUD
View
B+
Retailer 9
-
$5,774 AUD
View
B+
Retailer 10
-
$5,821 AUD
View
B
Retailer 11
-
$8,347 AUD
View
Most Expensive
B
NZ Jewellers
f9f848ad-713c-47f4-a762-4686ae3f456c · Nov 5
$8,720 AUD
$6,104 USD
View
11 more retailers have this diamond
Prices start from $4,393 AUDSave up to $4,327 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
$4,393 AUD