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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 $41,296 NZD
CA$32,326 CAD
As of October 30, 2026
Save $26,561 NZD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $67,858 NZD at MOH London · As of November 1, 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 October 30, 2026, with prices from $41,296 to $67,858, a $26,561 spread on the same certified stone. MOH London lists it at $67,858. 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: Oct 30
Current: $67,858 NZD|Low: $41,296 NZD|High: $70,273 NZD|Avg: $49,636 NZD|-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 1, 2026
Retailer 11$41,296 NZD
Retailer 13$41,555 NZD
Retailer 7$44,263 NZD
Retailer 12$45,207 NZD
Retailer 3$45,323 NZD
Retailer 5$45,914 NZD
Retailer 9$46,735 NZD
Retailer 14$46,735 NZD
Retailer 10$48,296 NZD
Retailer 2$51,198 NZD
Retailer 6$51,212 NZD
Retailer 4$52,836 NZD
Retailer 8$61,552 NZD
MOH London$67,858 NZD

41 data points across 14 retailers

14 retailers$41,296 NZD to $67,858 NZD

B+
Cheapest Retailer
-
$41,296 NZD
CA$32,326 CAD
B+
Retailer 2
-
$41,555 NZD
$23,421 USD
View
B+
Retailer 3
-
$44,263 NZD
£19,643 GBP
View
B+
Retailer 4
-
$45,207 NZD
$25,479 USD
View
B+
Retailer 5
-
$45,323 NZD
$25,544 USD
View
B+
Retailer 6
-
$45,914 NZD
$25,877 USD
View
B+
Retailer 7
-
$46,735 NZD
$26,340 USD
View
B+
Retailer 8
-
$46,735 NZD
$26,340 USD
View
B+
Retailer 9
-
$48,296 NZD
$27,220 USD
View
B
Retailer 10
-
$51,198 NZD
€27,481 EUR
View
B
Retailer 11
-
$51,212 NZD
$28,863 USD
View
B
Retailer 12
-
$52,836 NZD
$29,779 USD
View
B
Retailer 13
-
$61,552 NZD
$34,691 USD
View
Most Expensive
B
MOH London
C7A3F0535 · Nov 1
$67,858 NZD
£30,114 GBP
View
13 more retailers have this diamond
Prices start from $41,296 NZDSave up to $26,561 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+
3.12ct Round
$41,296 NZD