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Marquise|Lab Grown|IGI

0.38ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG310020027

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG310020027

Diamond specifications and retailer prices

From £203 GBP
$270 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: £203 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 0.38ct lab-grown marquise diamond

This 0.38ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG310020027 or 310020027. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.38
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle33.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG310020027
Dimensions7.83 × 3.73 × 2.26 mm
L/W Ratio2.10
Culet sizeNone
Top View
7.83 mm3.73 mm0.38 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG310020027
Side View
Table 54.0%Crown 33.1°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £203 GBP|Low: £159 GBP|High: £225 GBP|Avg: £202 GBP|-10.0%
Brilliant Earth
Retailer 2
October 4, 2026
Retailer 2£159 GBP
Brilliant Earth£203 GBP

7 data points across 2 retailers

1 retailer

B
Brilliant Earth
4249696Y · Oct 28
£203 GBP
$270 USD
View

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B
0.38ct Marquise
£203 GBP