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Round|Natural|GIA

3.18ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6131081960

Certificate GIA 6131081960

Diamond specifications and retailer prices

From $38,719 AUD
$27,135 USD
As of November 1, 2026
Save $30,904 AUD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $69,623 AUD at MOH London · As of November 2, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6131081960. Listed at 5 retailers as of November 1, 2026, with prices from $38,719 to $69,623, a $30,904 spread on the same certified stone. MOH London lists it at $69,623. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.18
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6131081960
Dimensions9.20 × 9.17 × 5.89 mm
L/W Ratio1.00
Top View
9.20 mm9.17 mm3.18 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6131081960
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $69,623 AUD|Low: $38,719 AUD|High: $70,462 AUD|Avg: $49,388 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 4$38,719 AUD
Retailer 5$40,406 AUD
Retailer 2$44,174 AUD
Retailer 3$53,889 AUD
MOH London$69,623 AUD

37 data points across 5 retailers

5 retailers$38,719 AUD to $69,623 AUD

B+
Cheapest Retailer
-
$38,719 AUD
$27,135 USD
B
Retailer 2
-
$40,406 AUD
$28,317 USD
View
B
Retailer 3
-
$44,174 AUD
£24,376 GBP
View
B
Retailer 4
-
$53,889 AUD
€35,968 EUR
View
Most Expensive
C
MOH London
19C478429 · Nov 2
$69,623 AUD
£38,420 GBP
View
4 more retailers have this diamond
Prices start from $38,719 AUDSave up to $30,904 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
$38,719 AUD