Round|Natural|GIA

3.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6431198905

Certificate GIA 6431198905

Diamond specifications and retailer prices

From $13,670 USD
As of November 1, 2026
Save $7,855 USD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $21,525 USD 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 $13,670 to $21,525, a $7,855 spread on the same certified stone. MOH London lists it at $21,525. 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
Color
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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Price History

Last verified: Nov 1
Current: $21,525 USD|Low: $11,895 USD|High: $21,844 USD|Avg: $16,180 USD|-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$11,895 USD
Retailer 4$13,670 USD
Retailer 13$13,930 USD
Retailer 6$14,510 USD
Retailer 5$15,038 USD
Retailer 12$15,255 USD
Retailer 7$15,869 USD
Retailer 8$16,272 USD
Retailer 2$16,526 USD
Retailer 10$17,161 USD
Retailer 9$17,340 USD
Retailer 11$19,578 USD
MOH London$21,525 USD

29 data points across 13 retailers

15 retailers$13,670 USD to $21,525 USD

Retailer 1
-
$11,895 USD
Price last confirmed 16 days ago
Retailer 2
-
$12,717 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$13,670 USD
View
A
Retailer 4
-
$13,930 USD
View
A
Retailer 5
-
$14,024 USD
View
A
Retailer 6
-
$14,510 USD
View
A
Retailer 7
-
$15,038 USD
View
A
Retailer 8
-
$15,869 USD
View
A
Retailer 9
-
$16,272 USD
View
A
Retailer 10
-
$16,526 USD
View
B+
Retailer 11
-
$16,944 USD
View
B+
Retailer 12
-
$17,161 USD
View
A
Retailer 13
-
$17,340 USD
View
B+
Retailer 14
-
$19,578 USD
View
Most Expensive
B+
MOH London
DB053B8CF · Nov 4
$21,525 USD
£16,949 GBP
View
14 more retailers have this diamond
Prices start from $13,670 USDSave up to $7,855 USD

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
$13,670 USD