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Round|Natural|HRD

3.12ct K SI2 Round Natural Diamond

EX • K/SI2 • HRD 260000090967

Certificate HRD 260000090967

Diamond specifications and retailer prices

From $20,713 AUD
As of November 5, 2026
Save $7,929 AUD (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $28,643 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 260000090967. Listed at 7 retailers as of November 4, 2026, with prices from $20,713 to $28,643, a $7,929 spread on the same certified stone. MOH London lists it at $28,643. 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

3.12
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.4°
Pavilion angle41.3°
OriginNatural
Grading LabHRD
CertificateHRD 260000090967
Dimensions9.26 × 9.16 × 5.83 mm
L/W Ratio1.01
Star length50%
Top View
9.26 mm9.16 mm3.12 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 260000090967
Side View
Table 60.0%Crown 36.4°GirdlePavilion 41.3°Culet: NoneDepth 63.2%

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 5
Current: $28,643 AUD|Low: $19,942 AUD|High: $29,065 AUD|Avg: $22,849 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 8$19,942 AUD
Retailer 7$20,298 AUD
Retailer 2$20,713 AUD
Retailer 5$21,650 AUD
Retailer 4$21,989 AUD
Retailer 6$22,835 AUD
Retailer 3$26,050 AUD
MOH London$28,643 AUD

20 data points across 8 retailers

7 retailers$20,713 AUD to $28,643 AUD

Retailer 1
-
$20,298 AUD
Price last confirmed 8 days ago
A
Retailer 2
-
$20,713 AUD
View
A
Retailer 3
-
$21,650 AUD
View
B+
Retailer 4
-
$21,989 AUD
View
B+
Retailer 5
-
$22,835 AUD
View
B+
Retailer 6
-
$26,050 AUD
View
Most Expensive
B+
MOH London
8C54D093E · Nov 4
$28,643 AUD
£15,788 GBP
View
6 more retailers have this diamond
Prices start from $20,713 AUDSave up to $7,929 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
3.12ct Round
$20,713 AUD