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Marquise|Lab Grown|IGI

0.42ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG838645162

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838645162

Diamond specifications and retailer prices

From $195 USD
As of October 30, 2026
Save $934 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,129 USD at MOH London · As of November 1, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838645162 or 838645162. Listed at 19 retailers as of October 30, 2026, with prices from $195 to $1,129, a $934 spread on the same certified stone. MOH London lists it at $1,129. 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
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838645162
Dimensions8.25 × 3.87 × 2.28 mm
L/W Ratio2.13
Girdle conditionFaceted
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
8.25 mm3.87 mm0.42 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838645162
Side View
Table 64.0%Crown 33.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 58.9%

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: $1,129 USD|Low: $195 USD|High: $1,143 USD|Avg: $520 USD|-0.9%
MOH London
Retailer 2
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Retailer 11
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Retailer 19
November 1, 2026
Retailer 5$195 USD
Retailer 16$226 USD
Retailer 18$226 USD
Retailer 6$242 USD
Retailer 19$242 USD
Retailer 4$309 USD
Retailer 17$382 USD
Retailer 10$384 USD
Retailer 13$395 USD
Retailer 2$439 USD
Retailer 12$441 USD
Retailer 8$486 USD
Retailer 14$629 USD
Retailer 15$630 USD
Retailer 7$776 USD
Retailer 9$802 USD
Retailer 3$830 USD
Retailer 11$948 USD
MOH London$1,129 USD

30 data points across 19 retailers

19 retailers$195 USD to $1,129 USD

A
Cheapest Retailer
-
$195 USD
A
Retailer 2
-
$226 USD
View
Final sale: no returns
A
Retailer 3
-
$226 USD
View
Retailer 4
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$242 USD
View
Price last confirmed 7 days ago
A
Retailer 5
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$242 USD
View
A
Retailer 6
-
$309 USD
View
B+
Retailer 7
-
$382 USD
View
B+
Retailer 8
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$384 USD
View
B+
Retailer 9
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$395 USD
€376 EUR
View
Retailer 10
-
$439 USD
ZAR 7,091 ZAR
View
B+
Retailer 11
-
$441 USD
£347 GBP
View
B+
Retailer 12
-
$486 USD
View
B
Retailer 13
-
$629 USD
A$968 AUD
View
B+
Retailer 14
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$630 USD
A$969 AUD
View
B
Retailer 15
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$776 USD
View
B
Retailer 16
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$802 USD
CA$1,114 CAD
View
B
Retailer 17
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$830 USD
View
B
Retailer 18
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$948 USD
View
Most Expensive
B
MOH London
LG838645162 · Nov 1
$1,129 USD
£889 GBP
View
18 more retailers have this diamond
Prices start from $195 USDSave up to $934 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
$195 USD