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Marquise|Lab Grown|IGI

0.50ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436047412

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047412

Diamond specifications and retailer prices

From $480 NZD
$270 USD
As of October 30, 2026
Save $1,901 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,381 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047412 or 436047412. Listed at 11 retailers as of October 30, 2026, with prices from $480 to $2,381, a $1,901 spread on the same certified stone. MOH London lists it at $2,381. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047412
Dimensions7.74 × 4.15 × 2.62 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.74 mm4.15 mm0.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047412
Side View
Table 56.0%Crown 34.2°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,381 NZD|Low: $460 NZD|High: $2,411 NZD|Avg: $1,150 NZD|-1.0%
MOH London
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
November 1, 2026
Retailer 8$480 NZD
Retailer 3$535 NZD
Retailer 13$556 NZD
Retailer 10$594 NZD
Retailer 14$594 NZD
Retailer 9$622 NZD
Retailer 4$880 NZD
Retailer 12$986 NZD
Retailer 2$1,109 NZD
Retailer 5$1,217 NZD
Retailer 7$1,825 NZD
Retailer 11$1,911 NZD
MOH London$2,381 NZD
Retailer 6$2,388 NZD

21 data points across 14 retailers

11 retailers$480 NZD to $2,381 NZD

A
Cheapest Retailer
-
$480 NZD
$270 USD
A
Retailer 2
-
$535 NZD
$301 USD
View
Final sale: no returns
B+
Retailer 3
-
$556 NZD
$313 USD
View
B+
Retailer 4
-
$594 NZD
$334 USD
View
Retailer 5
-
$594 NZD
$334 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$622 NZD
$350 USD
View
B
Retailer 7
-
$986 NZD
$555 USD
View
Retailer 8
-
$1,109 NZD
€594 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,825 NZD
$1,027 USD
View
B
Retailer 10
-
$1,911 NZD
$1,075 USD
View
Most Expensive
B
MOH London
LG436047412 · Nov 1
$2,381 NZD
£1,055 GBP
View
10 more retailers have this diamond
Prices start from $480 NZDSave up to $1,901 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
0.50ct Marquise
$480 NZD