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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 $23,367 SGD
HK$142,800 HKD
As of October 30, 2026
Save $20,494 SGD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $43,861 SGD 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 $23,367 to $43,861, a $20,494 spread on the same certified stone. MOH London lists it at $43,861. 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
Colour
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 30
Current: $43,861 SGD|Low: $23,367 SGD|High: $46,035 SGD|Avg: $31,993 SGD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 2$23,367 SGD
Retailer 5$26,605 SGD
Retailer 4$29,085 SGD
Retailer 6$32,007 SGD
Retailer 3$34,550 SGD
MOH London$43,861 SGD

37 data points across 6 retailers

9 retailers$23,367 SGD to $43,861 SGD

A
Cheapest Retailer
-
$23,367 SGD
HK$142,800 HKD
Retailer 2
-
$26,605 SGD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$29,085 SGD
$22,751 USD
View
B+
Retailer 4
-
$32,007 SGD
A$38,518 AUD
View
Retailer 5
-
$33,066 SGD
$25,865 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$33,760 SGD
$26,408 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$34,550 SGD
€25,739 EUR
View
Retailer 8
-
$39,996 SGD
$31,286 USD
View
Price last confirmed 13 days ago
Most Expensive
B
MOH London
E84C37AC0 · Oct 29
$43,861 SGD
£27,015 GBP
View
8 more retailers have this diamond
Prices start from $23,367 SGDSave up to $20,494 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.

A
3.40ct Round
$23,367 SGD