Marquise|Lab Grown|IGI

0.42ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG816662496

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816662496

Diamond specifications and retailer prices

From $206 USD
As of November 1, 2026
Save $1,144 USD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,350 USD at Kay Jewelers · As of November 1, 2026
View at Kay Jewelers

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 very-good cut grade and certified by IGI LG816662496 or 816662496. Listed at 19 retailers as of November 1, 2026, with prices from $206 to $1,350, a $1,144 spread on the same certified stone. Kay Jewelers lists it at $1,350. 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
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816662496
Dimensions7.83 × 3.90 × 2.40 mm
L/W Ratio2.01
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
7.83 mm3.90 mm0.42 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816662496
Side View
Table 57.0%Crown 30.7°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,350 USD|Low: $167 USD|High: $1,410 USD|Avg: $623 USD|+23.9%
Kay Jewelers
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
November 1, 2026
Retailer 7$167 USD
Retailer 6$206 USD
Retailer 14$230 USD
Retailer 9$292 USD
Retailer 11$320 USD
Retailer 8$375 USD
Retailer 2$412 USD
Retailer 4$480 USD
Retailer 3$486 USD
Retailer 16$591 USD
Retailer 15$651 USD
Retailer 5$660 USD
Retailer 12$730 USD
Retailer 17$903 USD
Retailer 10$1,062 USD
Kay Jewelers$1,350 USD
Retailer 13$1,350 USD

25 data points across 17 retailers

19 retailers$206 USD to $1,350 USD

Retailer 1
-
$167 USD
Price last confirmed 13 days ago
Retailer 2
-
$206 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$206 USD
View
A
Retailer 4
-
$230 USD
View
A
Retailer 5
-
$292 USD
View
A
Retailer 6
-
$320 USD
View
B+
Retailer 7
-
$375 USD
View
B+
Retailer 8
-
$412 USD
ZAR 6,663 ZAR
View
B+
Retailer 9
-
$480 USD
View
Retailer 10
-
$486 USD
€463 EUR
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$591 USD
A$909 AUD
View
B
Retailer 12
-
$651 USD
A$1,001 AUD
View
B
Retailer 13
-
$660 USD
CA$917 CAD
View
B
Retailer 14
-
$730 USD
View
Retailer 15
-
$732 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
$903 USD
View
B
Retailer 17
-
$1,062 USD
£836 GBP
View
B
Retailer 18
-
$1,350 USD
View
Most Expensive
B
Kay Jewelers
260063435 · Nov 1
$1,350 USD
View
18 more retailers have this diamond
Prices start from $206 USDSave up to $1,144 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
$206 USD