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0.42ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG492136012

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136012

Diamond specifications and retailer prices

From $434 NZD
As of November 5, 2026
Save $1,714 NZD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,149 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 0.42ct lab-grown round diamond

This 0.42ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136012 or 492136012. Listed at 9 retailers as of November 5, 2026, with prices from $434 to $2,149, a $1,714 spread on the same certified stone. MOH London lists it at $2,149. 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

0.42
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136012
Dimensions4.85 × 4.87 × 2.93 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.85 mm4.87 mm0.42 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136012
Side View
Table 57.5%Crown 32.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.4%

Caratlytics Score

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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: $2,149 NZD|Low: $416 NZD|High: $2,180 NZD|Avg: $929 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$434 NZD
Retailer 3$463 NZD
Retailer 7$503 NZD
Retailer 5$537 NZD
Retailer 6$904 NZD
Retailer 2$1,018 NZD
Retailer 8$1,060 NZD
Retailer 9$1,126 NZD
MOH London$2,149 NZD

25 data points across 9 retailers

9 retailers$434 NZD to $2,149 NZD

A
Cheapest Retailer
-
$434 NZD
A
Retailer 2
-
$463 NZD
View
B+
Retailer 3
-
$503 NZD
View
Retailer 4
-
$537 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$537 NZD
View
B
Retailer 6
-
$904 NZD
View
B
Retailer 7
-
$1,018 NZD
View
B
Retailer 8
-
$1,727 NZD
View
Most Expensive
B
MOH London
LG492136012 · Nov 5
$2,149 NZD
£951 GBP
View
8 more retailers have this diamond
Prices start from $434 NZDSave up to $1,714 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
0.42ct Round
$434 NZD