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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 $48,146 NZD
$27,135 USD
As of November 1, 2026
Save $38,428 NZD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $86,574 NZD at MOH London · As of November 1, 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 $48,146 to $86,574, a $38,428 spread on the same certified stone. MOH London lists it at $86,574. 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: $86,574 NZD|Low: $48,146 NZD|High: $87,617 NZD|Avg: $60,897 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$48,146 NZD
Retailer 5$50,243 NZD
Retailer 3$54,928 NZD
Retailer 2$66,962 NZD
MOH London$86,574 NZD

36 data points across 5 retailers

5 retailers$48,146 NZD to $86,574 NZD

B+
Cheapest Retailer
-
$48,146 NZD
$27,135 USD
B
Retailer 2
-
$50,243 NZD
$28,317 USD
View
B
Retailer 3
-
$54,928 NZD
£24,376 GBP
View
B
Retailer 4
-
$66,962 NZD
€35,943 EUR
View
Most Expensive
C
MOH London
19C478429 · Nov 1
$86,574 NZD
£38,420 GBP
View
4 more retailers have this diamond
Prices start from $48,146 NZDSave up to $38,428 NZD

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
$48,146 NZD