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Marquise|Lab Grown|IGI

2.91ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG844661975

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844661975

Diamond specifications and retailer prices

From €537 EUR
$602 USD
As of November 1, 2026
Save €774 EUR (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,311 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 2.91ct lab-grown marquise diamond

This 2.91ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG844661975 or 844661975. Listed at 4 retailers as of November 1, 2026, with prices from €537 to €1,311, a €774 spread on the same certified stone. MOH London lists it at €1,311. 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

2.91
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844661975
Dimensions14.03 × 7.57 × 4.77 mm
L/W Ratio1.85
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.03 mm7.57 mm2.91 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844661975
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.0%

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: €1,311 EUR|Low: €537 EUR|High: €1,318 EUR|Avg: €808 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4€537 EUR
Retailer 2€575 EUR
Retailer 3€894 EUR
MOH London€1,311 EUR

18 data points across 4 retailers

4 retailers€537 EUR to €1,311 EUR

B+
Cheapest Retailer
-
€537 EUR
$602 USD
A
Retailer 2
-
€575 EUR
£508 GBP
View
B+
Retailer 3
-
€894 EUR
$1,003 USD
View
Most Expensive
B+
MOH London
LG844661975 · Nov 1
€1,311 EUR
£1,158 GBP
View
3 more retailers have this diamond
Prices start from €537 EURSave up to €774 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
2.91ct Marquise
€537 EUR