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3.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2484226945

Certificate GIA 2484226945

Diamond specifications and retailer prices

From HK$211,093 HKD
CA$37,369 CAD
As of October 30, 2026
Save HK$138,844 HKD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$349,937 HKD 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 2484226945. Listed at 7 retailers as of October 30, 2026, with prices from HK$211,093 to HK$349,937, a HK$138,844 spread on the same certified stone. MOH London lists it at HK$349,937. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2484226945
Dimensions9.37 × 9.36 × 5.76 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
9.37 mm9.36 mm3.12 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2484226945
Side View
Table 60.0%Crown 35.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 61.5%

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: HK$349,937 HKD|Low: HK$195,005 HKD|High: HK$354,162 HKD|Avg: HK$250,704 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4HK$195,005 HKD
Retailer 5HK$200,858 HKD
Retailer 3HK$224,292 HKD
Retailer 2HK$256,465 HKD
MOH LondonHK$349,937 HKD

39 data points across 5 retailers

7 retailersHK$211,093 HKD to HK$349,937 HKD

Retailer 1
-
HK$195,005 HKD
$24,855 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
HK$211,093 HKD
CA$37,369 CAD
View
B+
Retailer 3
-
HK$224,292 HKD
£22,510 GBP
View
B
Retailer 4
-
HK$245,916 HKD
$31,344 USD
View
B
Retailer 5
-
HK$256,465 HKD
€31,132 EUR
View
B
Retailer 6
-
HK$261,764 HKD
$33,364 USD
View
Most Expensive
B
MOH London
7B04EAEF3 · Nov 1
HK$349,937 HKD
£35,120 GBP
View
6 more retailers have this diamond
Prices start from HK$211,093 HKDSave up to HK$138,844 HKD

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
HK$211,093 HKD