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Marquise|Lab Grown|IGI

1.55ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG840659145

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840659145

Diamond specifications and retailer prices

From €372 EUR
$417 USD
As of November 1, 2026
Save €861 EUR (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,233 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG840659145 or 840659145. Listed at 8 retailers as of November 1, 2026, with prices from €372 to €1,233, a €861 spread on the same certified stone. MOH London lists it at €1,233. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840659145
Dimensions11.39 × 6.04 × 3.88 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.39 mm6.04 mm1.55 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840659145
Side View
Table 61.0%Crown 36.6°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.2%

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: Nov 1
Current: €1,233 EUR|Low: €363 EUR|High: €1,238 EUR|Avg: €722 EUR|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4€372 EUR
Retailer 7€374 EUR
Retailer 3€531 EUR
Retailer 2€538 EUR
Retailer 8€645 EUR
Retailer 5€1,097 EUR
Retailer 6€1,138 EUR
MOH London€1,233 EUR

19 data points across 8 retailers

8 retailers€372 EUR to €1,233 EUR

A
Cheapest Retailer
-
€372 EUR
$417 USD
B+
Retailer 2
-
€374 EUR
$419 USD
View
A
Retailer 3
-
€531 EUR
ZAR 9,616 ZAR
View
A
Retailer 4
-
€538 EUR
£475 GBP
View
Retailer 5
-
€645 EUR
$723 USD
View
Price last confirmed 11 days ago
B
Retailer 6
-
€1,097 EUR
$1,230 USD
View
B
Retailer 7
-
€1,138 EUR
$1,277 USD
View
Most Expensive
B
MOH London
LG840659145 · Nov 1
€1,233 EUR
£1,089 GBP
View
7 more retailers have this diamond
Prices start from €372 EURSave up to €861 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
1.55ct Marquise
€372 EUR