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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 $34,689 SGD
$27,135 USD
As of October 25, 2026
Save $28,021 SGD (45%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $62,710 SGD at MOH London · As of October 29, 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 October 25, 2026, with prices from $34,689 to $62,710, a $28,021 spread on the same certified stone. MOH London lists it at $62,710. 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: Oct 25
Current: $62,710 SGD|Low: $34,689 SGD|High: $63,129 SGD|Avg: $43,686 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4$34,689 SGD
Retailer 5$36,200 SGD
Retailer 2$39,576 SGD
Retailer 3$48,588 SGD
MOH London$62,710 SGD

37 data points across 5 retailers

5 retailers$34,689 SGD to $62,710 SGD

B+
Cheapest Retailer
-
$34,689 SGD
$27,135 USD
B
Retailer 2
-
$36,200 SGD
$28,317 USD
View
B
Retailer 3
-
$39,576 SGD
£24,376 GBP
View
B
Retailer 4
-
$48,588 SGD
€36,197 EUR
View
Most Expensive
C
MOH London
19C478429 · Oct 29
$62,710 SGD
£38,625 GBP
View
4 more retailers have this diamond
Prices start from $34,689 SGDSave up to $28,021 SGD

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
$34,689 SGD