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Round|Natural|GIA

3.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6431198905

Certificate GIA 6431198905

Diamond specifications and retailer prices

From $19,528 AUD
As of November 1, 2026
Save $11,221 AUD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $30,749 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct 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 GIA 6431198905. Listed at 15 retailers as of November 1, 2026, with prices from $19,528 to $30,749, a $11,221 spread on the same certified stone. MOH London lists it at $30,749. 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

3.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6431198905
Dimensions9.22 × 9.19 × 5.72 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
9.22 mm9.19 mm3.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431198905
Side View
Table 58.0%Crown 34°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.1%

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 1
Current: $30,749 AUD|Low: $16,992 AUD|High: $31,204 AUD|Avg: $23,113 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3$16,992 AUD
Retailer 4$19,528 AUD
Retailer 13$19,899 AUD
Retailer 6$20,728 AUD
Retailer 5$21,482 AUD
Retailer 12$21,792 AUD
Retailer 7$22,669 AUD
Retailer 8$23,245 AUD
Retailer 2$23,607 AUD
Retailer 10$24,514 AUD
Retailer 9$24,770 AUD
Retailer 11$27,967 AUD
MOH London$30,749 AUD

29 data points across 13 retailers

15 retailers$19,528 AUD to $30,749 AUD

Retailer 1
-
$16,992 AUD
Price last confirmed 16 days ago
Retailer 2
-
$18,166 AUD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$19,528 AUD
View
A
Retailer 4
-
$19,899 AUD
View
A
Retailer 5
-
$20,033 AUD
View
A
Retailer 6
-
$20,728 AUD
View
A
Retailer 7
-
$21,482 AUD
View
A
Retailer 8
-
$22,669 AUD
View
A
Retailer 9
-
$23,245 AUD
View
A
Retailer 10
-
$23,607 AUD
View
B+
Retailer 11
-
$24,205 AUD
View
B+
Retailer 12
-
$24,514 AUD
View
A
Retailer 13
-
$24,770 AUD
View
B+
Retailer 14
-
$27,967 AUD
View
Most Expensive
B+
MOH London
DB053B8CF · Nov 4
$30,749 AUD
£16,949 GBP
View
14 more retailers have this diamond
Prices start from $19,528 AUDSave up to $11,221 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
3.00ct Round
$19,528 AUD