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Marquise|Lab Grown|IGI

1.54ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG500143696

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG500143696

Diamond specifications and retailer prices

From €1,195 EUR
$1,330 USD
As of October 27, 2026
Save €3,281 EUR (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,475 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.54ct lab-grown marquise diamond

This 1.54ct lab-grown marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500143696 or 500143696. Listed at 10 retailers as of October 27, 2026, with prices from €1,195 to €4,475, a €3,281 spread on the same certified stone. MOH London lists it at €4,475. 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

1.54
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500143696
Dimensions11.27 × 5.96 × 3.78 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.27 mm5.96 mm1.54 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500143696
Side View
Table 59.5%Crown 39.2°Girdle: STK-VTKPavilion 38.3°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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: Oct 27
Current: €4,475 EUR|Low: €1,146 EUR|High: €4,505 EUR|Avg: €2,144 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2€1,195 EUR
Retailer 3€1,231 EUR
Retailer 4€1,385 EUR
Retailer 6€1,540 EUR
Retailer 8€1,905 EUR
Retailer 5€2,191 EUR
Retailer 7€2,582 EUR
MOH London€4,475 EUR

12 data points across 8 retailers

10 retailers€1,195 EUR to €4,475 EUR

A
Cheapest Retailer
-
€1,195 EUR
$1,330 USD
B+
Retailer 2
-
€1,231 EUR
$1,370 USD
View
B+
Retailer 3
-
€1,300 EUR
$1,447 USD
View
B+
Retailer 4
-
€1,385 EUR
$1,542 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
€1,385 EUR
$1,542 USD
View
B+
Retailer 6
-
€1,540 EUR
$1,715 USD
View
B
Retailer 7
-
€2,191 EUR
$2,439 USD
View
B
Retailer 8
-
€2,582 EUR
$2,875 USD
View
B
Retailer 9
-
€2,597 EUR
$2,891 USD
View
Most Expensive
B
MOH London
LG500143696 · Oct 29
€4,475 EUR
£3,923 GBP
View
9 more retailers have this diamond
Prices start from €1,195 EURSave up to €3,281 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
1.54ct Marquise
€1,195 EUR