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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 $366 NZD
$206 USD
As of November 1, 2026
Save $2,033 NZD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,399 NZD 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 $366 to $2,399, a $2,033 spread on the same certified stone. Kay Jewelers lists it at $2,399. 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
Colour
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: $2,399 NZD|Low: $297 NZD|High: $2,506 NZD|Avg: $1,106 NZD|+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$297 NZD
Retailer 6$366 NZD
Retailer 15$409 NZD
Retailer 9$519 NZD
Retailer 12$569 NZD
Retailer 8$666 NZD
Retailer 10$733 NZD
Retailer 4$854 NZD
Retailer 3$864 NZD
Retailer 2$1,049 NZD
Retailer 16$1,156 NZD
Retailer 5$1,173 NZD
Retailer 13$1,297 NZD
Retailer 17$1,605 NZD
Retailer 11$1,887 NZD
Kay Jewelers$2,399 NZD
Retailer 14$2,399 NZD

26 data points across 17 retailers

19 retailers$366 NZD to $2,399 NZD

Retailer 1
-
$297 NZD
$167 USD
Price last confirmed 14 days ago
Retailer 2
-
$366 NZD
$206 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$366 NZD
$206 USD
View
A
Retailer 4
-
$409 NZD
$230 USD
View
A
Retailer 5
-
$519 NZD
$292 USD
View
A
Retailer 6
-
$569 NZD
$320 USD
View
B+
Retailer 7
-
$666 NZD
$375 USD
View
B+
Retailer 8
-
$733 NZD
ZAR 6,663 ZAR
View
B+
Retailer 9
-
$854 NZD
$480 USD
View
Retailer 10
-
$864 NZD
€463 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$1,049 NZD
A$908 AUD
View
B
Retailer 12
-
$1,156 NZD
A$1,001 AUD
View
B
Retailer 13
-
$1,173 NZD
CA$917 CAD
View
B
Retailer 14
-
$1,297 NZD
$730 USD
View
Retailer 15
-
$1,301 NZD
$732 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
$1,605 NZD
$903 USD
View
B
Retailer 17
-
$1,887 NZD
£836 GBP
View
B
Retailer 18
-
$2,399 NZD
$1,350 USD
View
Most Expensive
B
Kay Jewelers
260063435 · Nov 2
$2,399 NZD
$1,350 USD
View
18 more retailers have this diamond
Prices start from $366 NZDSave up to $2,033 NZD

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
$366 NZD