CaratHunter
Plans
Round|Natural|GIA

3.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1493947605

Certificate GIA 1493947605

Diamond specifications and retailer prices

From $22,213 AUD
As of November 4, 2026
Save $5,237 AUD (19%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $31,277 AUD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1493947605. Listed at 13 retailers as of November 4, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.21
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1493947605
Dimensions9.49 × 9.53 × 5.83 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Cert comments
Additional clouds pinpoints internal graining and surface graining are not shown.
Top View
9.49 mm9.53 mm3.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1493947605
Side View
Table 56.0%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 61.3%

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: $23,055 AUD|Low: $21,999 AUD|High: $31,104 AUD|Avg: $26,151 AUD|-13.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$22,213 AUD
Retailer 7$22,405 AUD
Retailer 4$23,042 AUD
Retailer 1$23,055 AUD
Retailer 5$25,670 AUD
Retailer 2$26,152 AUD
Retailer 8$26,794 AUD
Retailer 3$27,450 AUD

42 data points across 8 retailers

13 retailers$22,213 AUD to $27,450 AUD

A
Cheapest Retailer
-
$22,213 AUD
A
Retailer 2
-
$22,405 AUD
View
B+
Retailer 3
-
$23,042 AUD
View
B+
Retailer 4
-
$23,055 AUD
View
B+
Retailer 5
-
$25,670 AUD
View
B+
Retailer 6
-
$26,152 AUD
View
Retailer 7
-
$26,402 AUD
View
Price last confirmed 53 days ago
Retailer 8
-
$27,416 AUD
View
Price last confirmed 53 days ago
B+
Retailer 9
-
$27,450 AUD
View
Retailer 10
-
$28,134 AUD
View
Price last confirmed 38 days ago
Retailer 11
-
$29,029 AUD
View
Price last confirmed 36 days ago
Retailer 12
-
$30,144 AUD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
3fee2b49-c1c0-44fa-9964-eb392d633b56 · Sep 15
$31,277 AUD
$21,895 USD
View
Price last confirmed 52 days ago
12 more retailers have this diamond
Prices start from $22,213 AUDSave up to $5,237 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
3.21ct Round
$22,213 AUD