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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 €269 EUR
$300 USD
As of October 30, 2026
Save €1,066 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,335 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 €269 to €1,335, a €1,066 spread on the same certified stone. MOH London lists it at €1,335. 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
Color
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: Oct 30
Current: €1,335 EUR|Low: €258 EUR|High: €1,349 EUR|Avg: €632 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€269 EUR
Retailer 7€286 EUR
Retailer 3€300 EUR
Retailer 13€311 EUR
Retailer 10€333 EUR
Retailer 14€333 EUR
Retailer 4€474 EUR
Retailer 12€544 EUR
Retailer 2€610 EUR
Retailer 5€657 EUR
Retailer 8€1,022 EUR
Retailer 11€1,070 EUR
MOH London€1,335 EUR
Retailer 6€1,337 EUR

24 data points across 14 retailers

11 retailers€269 EUR to €1,335 EUR

A
Cheapest Retailer
-
€269 EUR
$300 USD
A
Retailer 2
-
€286 EUR
$320 USD
View
B+
Retailer 3
-
€300 EUR
$335 USD
View
Final sale: no returns
B+
Retailer 4
-
€311 EUR
$348 USD
View
Retailer 5
-
€333 EUR
$372 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€333 EUR
$372 USD
View
B
Retailer 7
-
€544 EUR
$608 USD
View
B
Retailer 8
-
€610 EUR
View
B
Retailer 9
-
€1,022 EUR
$1,142 USD
View
B
Retailer 10
-
€1,070 EUR
$1,195 USD
View
Most Expensive
B
MOH London
LG436073156 · Oct 26
€1,335 EUR
£1,174 GBP
View
10 more retailers have this diamond
Prices start from €269 EURSave up to €1,066 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
€269 EUR