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Marquise|Lab Grown|IGI

0.42ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG838608699

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838608699

Diamond specifications and retailer prices

From $187 USD
As of October 30, 2026
Save $900 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,087 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.42ct lab-grown marquise diamond

This 0.42ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838608699 or 838608699. Listed at 19 retailers as of October 29, 2026, with prices from $187 to $1,087, a $900 spread on the same certified stone. MOH London lists it at $1,087. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.42
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838608699
Dimensions7.96 × 3.87 × 2.34 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.96 mm3.87 mm0.42 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838608699
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 39°Culet: NoneDepth 60.5%

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: Oct 30
Current: $1,087 USD|Low: $187 USD|High: $1,095 USD|Avg: $498 USD|-0.5%
MOH London
Retailer 2
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Retailer 19
October 31, 2026
Retailer 5$187 USD
Retailer 18$214 USD
Retailer 6$231 USD
Retailer 19$231 USD
Retailer 4$300 USD
Retailer 17$365 USD
Retailer 10$373 USD
Retailer 16$381 USD
Retailer 12$418 USD
Retailer 2$419 USD
Retailer 15$450 USD
Retailer 14$450 USD
Retailer 8$462 USD
Retailer 13$603 USD
Retailer 7$744 USD
Retailer 9$762 USD
Retailer 3$798 USD
Retailer 11$900 USD
MOH London$1,087 USD

29 data points across 19 retailers

19 retailers$187 USD to $1,087 USD

A
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$214 USD
View
Final sale: no returns
A
Retailer 3
-
$231 USD
View
A
Retailer 4
-
$231 USD
View
A
Retailer 5
-
$300 USD
View
A
Retailer 6
-
$365 USD
View
B+
Retailer 7
-
$373 USD
View
B+
Retailer 8
-
$381 USD
€363 EUR
View
B+
Retailer 9
-
$418 USD
ZAR 6,754 ZAR
View
B+
Retailer 10
-
$419 USD
£330 GBP
View
B+
Retailer 11
-
$450 USD
View
B+
Retailer 12
-
$450 USD
A$693 AUD
View
B+
Retailer 13
-
$462 USD
View
B+
Retailer 14
-
$603 USD
A$928 AUD
View
B
Retailer 15
-
$744 USD
View
B
Retailer 16
-
$762 USD
CA$1,058 CAD
View
B
Retailer 17
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$798 USD
View
B
Retailer 18
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$900 USD
View
Most Expensive
B
MOH London
LG838608699 · Oct 29
$1,087 USD
£856 GBP
View
18 more retailers have this diamond
Prices start from $187 USDSave up to $900 USD

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 Marquise
$187 USD