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Marquise|Lab Grown|IGI

0.50ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436073156

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436073156

Diamond specifications and retailer prices

From $532 NZD
$300 USD
As of November 2, 2026
Save $2,113 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,645 NZD at MOH London · As of October 26, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073156 or 436073156. Listed at 11 retailers as of October 26, 2026, with prices from $532 to $2,645, a $2,113 spread on the same certified stone. MOH London lists it at $2,645. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073156
Dimensions7.74 × 4.28 × 2.61 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Top View
7.74 mm4.28 mm0.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073156
Side View
Table 61.5%Crown 31.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.0%

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: Nov 2
Current: $2,645 NZD|Low: $511 NZD|High: $2,675 NZD|Avg: $1,254 NZD|-0.9%
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
October 31, 2026
Retailer 9$532 NZD
Retailer 7$568 NZD
Retailer 3$594 NZD
Retailer 13$617 NZD
Retailer 10$660 NZD
Retailer 14$660 NZD
Retailer 4$940 NZD
Retailer 12$1,079 NZD
Retailer 2$1,209 NZD
Retailer 5$1,302 NZD
Retailer 8$2,026 NZD
Retailer 11$2,120 NZD
MOH London$2,645 NZD
Retailer 6$2,650 NZD

24 data points across 14 retailers

11 retailers$532 NZD to $2,645 NZD

A
Cheapest Retailer
-
$532 NZD
$300 USD
A
Retailer 2
-
$568 NZD
$320 USD
View
B+
Retailer 3
-
$594 NZD
$335 USD
View
Final sale: no returns
B+
Retailer 4
-
$617 NZD
$348 USD
View
Retailer 5
-
$660 NZD
$372 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$660 NZD
$372 USD
View
B
Retailer 7
-
$1,079 NZD
$608 USD
View
B
Retailer 8
-
$1,209 NZD
€649 EUR
View
B
Retailer 9
-
$2,026 NZD
$1,142 USD
View
B
Retailer 10
-
$2,120 NZD
$1,195 USD
View
Most Expensive
B
MOH London
LG436073156 · Oct 26
$2,645 NZD
£1,174 GBP
View
10 more retailers have this diamond
Prices start from $532 NZDSave up to $2,113 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
$532 NZD