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Round|Natural|GIA

3.28ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6535487768

Certificate GIA 6535487768

Diamond specifications and retailer prices

From $31,797 AUD
As of November 6, 2026
Save $20,009 AUD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $51,806 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.28ct natural round diamond

This 3.28ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535487768. Listed at 12 retailers as of November 4, 2026, with prices from $31,797 to $51,806, a $20,009 spread on the same certified stone. MOH London lists it at $51,806. 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

3.28
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6535487768
Dimensions9.50 × 9.44 × 5.89 mm
L/W Ratio1.01
Star length50%
Top View
9.50 mm9.44 mm3.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535487768
Side View
Table 57.0%Crown 35.5°Girdle: MED-SLIPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $51,806 AUD|Low: $31,650 AUD|High: $54,290 AUD|Avg: $37,867 AUD|+6.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$31,797 AUD
Retailer 4$33,343 AUD
Retailer 3$34,220 AUD
Retailer 11$34,450 AUD
Retailer 2$34,593 AUD
Retailer 6$35,134 AUD
Retailer 5$38,968 AUD
Retailer 8$39,188 AUD
Retailer 10$39,612 AUD
Retailer 7$40,429 AUD
MOH London$51,806 AUD

29 data points across 11 retailers

12 retailers$31,797 AUD to $51,806 AUD

A
Cheapest Retailer
-
$31,797 AUD
A
Retailer 2
-
$33,343 AUD
View
A
Retailer 3
-
$34,593 AUD
View
B+
Retailer 4
-
$35,134 AUD
View
Retailer 5
-
$37,320 AUD
View
Price last confirmed 45 days ago
Retailer 6
-
$38,755 AUD
View
Price last confirmed 45 days ago
B+
Retailer 7
-
$38,968 AUD
View
B+
Retailer 8
-
$39,188 AUD
View
Retailer 9
-
$39,612 AUD
View
Price last confirmed 42 days ago
B+
Retailer 10
-
$40,429 AUD
View
Retailer 11
-
$44,214 AUD
View
Price last confirmed 42 days ago
Most Expensive
B
MOH London
75F4F6B9A · Nov 4
$51,806 AUD
£28,556 GBP
View
11 more retailers have this diamond
Prices start from $31,797 AUDSave up to $20,009 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
3.28ct Round
$31,797 AUD