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Round|Natural|GIA

3.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2534381622

Certificate GIA 2534381622

Diamond specifications and retailer prices

From $33,211 AUD
CA$32,326 CAD
As of November 2, 2026
Save $21,361 AUD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $54,571 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2534381622. Listed at 14 retailers as of November 2, 2026, with prices from $33,211 to $54,571, a $21,361 spread on the same certified stone. MOH London lists it at $54,571. 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

3.12
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2534381622
Dimensions9.37 × 9.32 × 5.77 mm
L/W Ratio1.01
Top View
9.37 mm9.32 mm3.12 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534381622
Side View
Table 58.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.2°Culet: NDepth 61.8%

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 2
Current: $54,571 AUD|Low: $33,211 AUD|High: $56,514 AUD|Avg: $39,936 AUD|-3.4%
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
Retailer 14
November 3, 2026
Retailer 11$33,211 AUD
Retailer 13$33,419 AUD
Retailer 7$35,301 AUD
Retailer 12$36,356 AUD
Retailer 3$36,449 AUD
Retailer 5$36,924 AUD
Retailer 9$37,585 AUD
Retailer 14$37,585 AUD
Retailer 10$38,840 AUD
Retailer 6$41,185 AUD
Retailer 2$41,224 AUD
Retailer 4$42,491 AUD
Retailer 8$49,501 AUD
MOH London$54,571 AUD

41 data points across 14 retailers

14 retailers$33,211 AUD to $54,571 AUD

B+
Cheapest Retailer
-
$33,211 AUD
CA$32,326 CAD
B+
Retailer 2
-
$33,419 AUD
$23,421 USD
View
B+
Retailer 3
-
$35,301 AUD
£19,480 GBP
View
B+
Retailer 4
-
$36,356 AUD
$25,479 USD
View
B+
Retailer 5
-
$36,449 AUD
$25,544 USD
View
B+
Retailer 6
-
$36,924 AUD
$25,877 USD
View
B+
Retailer 7
-
$37,585 AUD
$26,340 USD
View
B+
Retailer 8
-
$37,585 AUD
$26,340 USD
View
B+
Retailer 9
-
$38,840 AUD
$27,220 USD
View
B
Retailer 10
-
$41,185 AUD
$28,863 USD
View
B
Retailer 11
-
$41,224 AUD
€27,515 EUR
View
B
Retailer 12
-
$42,491 AUD
$29,779 USD
View
B
Retailer 13
-
$49,501 AUD
$34,691 USD
View
Most Expensive
B
MOH London
C7A3F0535 · Nov 2
$54,571 AUD
£30,114 GBP
View
13 more retailers have this diamond
Prices start from $33,211 AUDSave up to $21,361 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+
3.12ct Round
$33,211 AUD