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Round|Natural|GIA

3.40ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1242049742

Certificate GIA 1242049742

Diamond specifications and retailer prices

From $25,869 CAD
HK$144,400 HKD
As of October 29, 2026
Save $22,150 CAD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $48,019 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 3.4ct natural round diamond

This 3.4ct 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 1242049742. Listed at 9 retailers as of October 29, 2026, with prices from $25,869 to $48,019, a $22,150 spread on the same certified stone. MOH London lists it at $48,019. 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

3.40
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1242049742
Dimensions9.52 × 9.58 × 5.99 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.52 mm9.58 mm3.40 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242049742
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $48,019 CAD|Low: $25,869 CAD|High: $50,399 CAD|Avg: $35,039 CAD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$25,869 CAD
Retailer 5$29,127 CAD
Retailer 4$31,842 CAD
Retailer 6$35,041 CAD
Retailer 2$37,826 CAD
MOH London$48,019 CAD

36 data points across 6 retailers

9 retailers$25,869 CAD to $48,019 CAD

A
Cheapest Retailer
-
$25,869 CAD
HK$144,400 HKD
Retailer 2
-
$29,127 CAD
SGD 28,123 SGD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$31,842 CAD
$22,751 USD
View
B+
Retailer 4
-
$35,041 CAD
A$38,518 AUD
View
Retailer 5
-
$36,201 CAD
$25,865 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$36,961 CAD
$26,408 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$37,826 CAD
€25,739 EUR
View
Retailer 8
-
$43,788 CAD
$31,286 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
E84C37AC0 · Oct 29
$48,019 CAD
£27,015 GBP
View
8 more retailers have this diamond
Prices start from $25,869 CADSave up to $22,150 CAD

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.

A
3.40ct Round
$25,869 CAD