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Marquise|Lab Grown|IGI

0.42ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG821620958

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821620958

Diamond specifications and retailer prices

From $325 USD
£256 GBP
As of October 24, 2026
2 retailers carry this diamond
Most expensive: $672 USD at Taylor and Hart · As of October 23, 2026
View at Taylor and Hart

About this 0.42ct lab-grown marquise diamond

This 0.42ct lab-grown marquise sits in the sub-half-carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG821620958 or 821620958. Listed at 2 retailers as of October 23, 2026. 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
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821620958
Dimensions7.94 × 3.76 × 2.38 mm
L/W Ratio2.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.94 mm3.76 mm0.42 ctF / VVS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG821620958
Side View
Table 59.0%Crown 36.4°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 63.3%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 24
Current: $487 USD|Low: $325 USD|High: $672 USD|Avg: $539 USD
Retailer 1
Retailer 2
Taylor and Hart
October 24, 2026
Retailer 2$325 USD
Retailer 1$487 USD
Taylor and Hart$672 USD

2 data points across 3 retailers

2 retailers$325 USD to $672 USD

Retailer 1
-
$325 USD
£256 GBP
Price last confirmed 9 days ago
Most Expensive
Taylor and Hart
FQMQK4C · Oct 23
$672 USD
View
Price last confirmed 10 days ago
1 more retailer has this diamond

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.

0.42ct Marquise
$325 USD