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Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6552105693

Certificate GIA 6552105693

Diamond specifications and retailer prices

From $3,583 AUD
As of November 4, 2026
Save $4,154 AUD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,434 AUD at NZ Jewellers · As of September 25, 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 6552105693. Listed at 12 retailers as of November 4, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552105693
Dimensions6.79 × 6.77 × 4.26 mm
L/W Ratio1.00
Top View
6.79 mm6.77 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552105693
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 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 4
Current: $4,980 AUD|Low: $3,547 AUD|High: $8,192 AUD|Avg: $5,326 AUD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,583 AUD
Retailer 8$4,131 AUD
Retailer 6$4,230 AUD
Retailer 2$4,283 AUD
Retailer 10$4,734 AUD
Retailer 3$4,771 AUD
Retailer 1$4,980 AUD
Retailer 4$5,394 AUD
Retailer 7$7,143 AUD
Retailer 5$7,737 AUD

31 data points across 10 retailers

12 retailers$3,583 AUD to $7,737 AUD

A
Cheapest Retailer
-
$3,583 AUD
A
Retailer 2
-
$4,131 AUD
View
A
Retailer 3
-
$4,230 AUD
View
A
Retailer 4
-
$4,283 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,734 AUD
View
A
Retailer 6
-
$4,771 AUD
View
A
Retailer 7
-
$4,980 AUD
View
A
Retailer 8
-
$5,394 AUD
View
B+
Retailer 9
-
$7,143 AUD
View
B+
Retailer 10
-
$7,737 AUD
View
Retailer 11
-
$8,240 AUD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
761f3a10-8010-4362-948f-597dc9aeb9f5 · Sep 25
$8,434 AUD
$5,904 USD
View
Price last confirmed 41 days ago
11 more retailers have this diamond
Prices start from $3,583 AUDSave up to $4,154 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
$3,583 AUD