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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 $32,431 NZD
HK$142,800 HKD
As of October 30, 2026
Save $28,443 NZD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $60,875 NZD 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 $32,431 to $60,875, a $28,443 spread on the same certified stone. MOH London lists it at $60,875. 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: $60,875 NZD|Low: $32,431 NZD|High: $63,892 NZD|Avg: $44,476 NZD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4$32,431 NZD
Retailer 5$36,925 NZD
Retailer 3$39,512 NZD
Retailer 6$44,423 NZD
Retailer 2$47,136 NZD
MOH London$60,875 NZD

37 data points across 6 retailers

9 retailers$32,431 NZD to $60,875 NZD

A
Cheapest Retailer
-
$32,431 NZD
HK$142,800 HKD
Retailer 2
-
$36,925 NZD
SGD 28,123 SGD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$39,512 NZD
$22,269 USD
View
B+
Retailer 4
-
$44,423 NZD
A$38,518 AUD
View
Retailer 5
-
$45,892 NZD
$25,865 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$46,856 NZD
$26,408 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$47,136 NZD
€25,301 EUR
View
Retailer 8
-
$55,511 NZD
$31,286 USD
View
Price last confirmed 14 days ago
Most Expensive
B
MOH London
E84C37AC0 · Oct 29
$60,875 NZD
£27,015 GBP
View
8 more retailers have this diamond
Prices start from $32,431 NZDSave up to $28,443 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.

A
3.40ct Round
$32,431 NZD