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Round|Lab Grown|IGI

0.42ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG459129634

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129634

Diamond specifications and retailer prices

From $331 SGD
As of November 5, 2026
Save $1,309 SGD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,640 SGD 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459129634 or 459129634. Listed at 10 retailers as of November 5, 2026, with prices from $331 to $1,640, a $1,309 spread on the same certified stone. MOH London lists it at $1,640. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129634
Dimensions4.77 × 4.79 × 2.96 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
4.77 mm4.79 mm0.42 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459129634
Side View
Table 57.5%Crown 37.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.0%

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: $1,640 SGD|Low: $318 SGD|High: $1,664 SGD|Avg: $675 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$331 SGD
Retailer 3$345 SGD
Retailer 8$383 SGD
Retailer 6$410 SGD
Retailer 7$683 SGD
Retailer 2$769 SGD
Retailer 4$774 SGD
MOH London$1,640 SGD

45 data points across 8 retailers

10 retailers$331 SGD to $1,640 SGD

A
Cheapest Retailer
-
$331 SGD
A
Retailer 2
-
$345 SGD
View
B+
Retailer 3
-
$383 SGD
View
B+
Retailer 4
-
$410 SGD
View
Retailer 5
-
$410 SGD
View
Price last confirmed 12 days ago
B
Retailer 6
-
$683 SGD
View
B
Retailer 7
-
$769 SGD
View
Retailer 8
-
$774 SGD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,319 SGD
View
Most Expensive
B
MOH London
LG459129634 · Nov 5
$1,640 SGD
£1,011 GBP
View
9 more retailers have this diamond
Prices start from $331 SGDSave up to $1,309 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
0.42ct Round
$331 SGD