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3.40ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG492110392

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492110392

Diamond specifications and retailer prices

From $9,208 NZD
As of November 5, 2026
Save $12,469 NZD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $21,677 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 3.4ct lab-grown round diamond

This 3.4ct lab-grown round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492110392 or 492110392. Listed at 9 retailers as of November 5, 2026, with prices from $9,208 to $21,677, a $12,469 spread on the same certified stone. MOH London lists it at $21,677. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492110392
Dimensions9.68 × 9.63 × 5.83 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.68 mm9.63 mm3.40 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492110392
Side View
Table 58.5%Crown 34.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.3%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $21,677 NZD|Low: $9,208 NZD|High: $22,025 NZD|Avg: $14,419 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4$9,208 NZD
Retailer 2$10,682 NZD
Retailer 6$11,476 NZD
Retailer 3$13,393 NZD
Retailer 5$16,503 NZD
MOH London$21,677 NZD

18 data points across 6 retailers

9 retailers$9,208 NZD to $21,677 NZD

A
Cheapest Retailer
-
$9,208 NZD
A
Retailer 2
-
$9,651 NZD
View
Retailer 3
-
$10,681 NZD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$10,681 NZD
View
B+
Retailer 5
-
$10,682 NZD
View
B+
Retailer 6
-
$12,680 NZD
View
B
Retailer 7
-
$13,393 NZD
View
B
Retailer 8
-
$16,503 NZD
View
Most Expensive
B
MOH London
LG492110392 · Nov 5
$21,677 NZD
£9,595 GBP
View
8 more retailers have this diamond
Prices start from $9,208 NZDSave up to $12,469 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
$9,208 NZD