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Round|Natural|GIA

3.18ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6177561497

Certificate GIA 6177561497

Diamond specifications and retailer prices

From $43,722 AUD
As of November 6, 2026
Save $23,726 AUD (35%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $67,448 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 3.18ct natural round diamond

This 3.18ct 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 6177561497. Listed at 4 retailers as of November 4, 2026, with prices from $43,722 to $67,448, a $23,726 spread on the same certified stone. MOH London lists it at $67,448. 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

3.18
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6177561497
Dimensions9.50 × 9.50 × 5.83 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
9.50 mm9.50 mm3.18 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6177561497
Side View
Table 56.0%Crown 34°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 61.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $67,448 AUD|Low: $43,722 AUD|High: $68,444 AUD|Avg: $52,497 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$43,722 AUD
Retailer 4$44,265 AUD
Retailer 3$52,133 AUD
MOH London$67,448 AUD

41 data points across 4 retailers

4 retailers$43,722 AUD to $67,448 AUD

B
Cheapest Retailer
-
$43,722 AUD
B
Retailer 2
-
$44,265 AUD
View
B
Retailer 3
-
$52,133 AUD
View
Most Expensive
B
MOH London
ED94F58D9 · Nov 4
$67,448 AUD
£37,178 GBP
View
3 more retailers have this diamond
Prices start from $43,722 AUDSave up to $23,726 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.

B
3.18ct Round
$43,722 AUD