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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 €267 EUR
$300 USD
As of November 2, 2026
Save €1,062 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,329 EUR 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 €267 to €1,329, a €1,062 spread on the same certified stone. MOH London lists it at €1,329. 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: €1,329 EUR|Low: €257 EUR|High: €1,344 EUR|Avg: €630 EUR|-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€267 EUR
Retailer 7€285 EUR
Retailer 3€299 EUR
Retailer 13€310 EUR
Retailer 10€332 EUR
Retailer 14€332 EUR
Retailer 4€473 EUR
Retailer 12€542 EUR
Retailer 2€608 EUR
Retailer 5€654 EUR
Retailer 8€1,018 EUR
Retailer 11€1,065 EUR
MOH London€1,329 EUR
Retailer 6€1,332 EUR

24 data points across 14 retailers

11 retailers€267 EUR to €1,329 EUR

A
Cheapest Retailer
-
€267 EUR
$300 USD
A
Retailer 2
-
€285 EUR
$320 USD
View
B+
Retailer 3
-
€299 EUR
$335 USD
View
Final sale: no returns
B+
Retailer 4
-
€310 EUR
$348 USD
View
Retailer 5
-
€332 EUR
$372 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€332 EUR
$372 USD
View
B
Retailer 7
-
€542 EUR
$608 USD
View
B
Retailer 8
-
€608 EUR
View
B
Retailer 9
-
€1,018 EUR
$1,142 USD
View
B
Retailer 10
-
€1,065 EUR
$1,195 USD
View
Most Expensive
B
MOH London
LG436073156 · Oct 26
€1,329 EUR
£1,174 GBP
View
10 more retailers have this diamond
Prices start from €267 EURSave up to €1,062 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
0.50ct Marquise
€267 EUR