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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 €184 EUR
$206 USD
As of November 1, 2026
Save €1,020 EUR (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,204 EUR at Kay Jewelers · As of November 2, 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 €184 to €1,204, a €1,020 spread on the same certified stone. Kay Jewelers lists it at €1,204. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,204 EUR|Low: €149 EUR|High: €1,257 EUR|Avg: €555 EUR|+23.9%
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 7€149 EUR
Retailer 6€184 EUR
Retailer 15€205 EUR
Retailer 9€260 EUR
Retailer 12€285 EUR
Retailer 8€334 EUR
Retailer 10€368 EUR
Retailer 4€428 EUR
Retailer 3€433 EUR
Retailer 2€526 EUR
Retailer 16€580 EUR
Retailer 5€589 EUR
Retailer 13€651 EUR
Retailer 17€805 EUR
Retailer 11€947 EUR
Kay Jewelers€1,204 EUR
Retailer 14€1,204 EUR

26 data points across 17 retailers

19 retailers€184 EUR to €1,204 EUR

Retailer 1
-
€149 EUR
$167 USD
Price last confirmed 14 days ago
Retailer 2
-
€184 EUR
$206 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
€184 EUR
$206 USD
View
A
Retailer 4
-
€205 EUR
$230 USD
View
A
Retailer 5
-
€260 EUR
$292 USD
View
A
Retailer 6
-
€285 EUR
$320 USD
View
B+
Retailer 7
-
€334 EUR
$375 USD
View
B+
Retailer 8
-
€368 EUR
ZAR 6,663 ZAR
View
B+
Retailer 9
-
€428 EUR
$480 USD
View
Retailer 10
-
€433 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
€526 EUR
A$908 AUD
View
B
Retailer 12
-
€580 EUR
A$1,001 AUD
View
B
Retailer 13
-
€589 EUR
CA$917 CAD
View
B
Retailer 14
-
€651 EUR
$730 USD
View
Retailer 15
-
€653 EUR
$732 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
€805 EUR
$903 USD
View
B
Retailer 17
-
€947 EUR
£836 GBP
View
B
Retailer 18
-
€1,204 EUR
$1,350 USD
View
Most Expensive
B
Kay Jewelers
260063435 · Nov 2
€1,204 EUR
$1,350 USD
View
18 more retailers have this diamond
Prices start from €184 EURSave up to €1,020 EUR

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
€184 EUR