Marquise|Lab Grown|IGI

2.91ct D SI2 Marquise Lab Grown Diamond

VG • D/SI2 • IGI LG818630225

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818630225

Diamond specifications and retailer prices

From €337 EUR
$376 USD
As of October 30, 2026
Save €1,919 EUR (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,256 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.91ct lab-grown marquise diamond

This 2.91ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG818630225 or 818630225. Listed at 12 retailers as of October 30, 2026, with prices from €337 to €2,256, a €1,919 spread on the same certified stone. Brilliant Earth lists it at €2,256. 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
D
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818630225
Dimensions13.93 × 7.37 × 4.83 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
13.93 mm7.37 mm2.91 ctD / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818630225
Side View
Table 59.0%Crown 37.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 65.5%

Caratlytics Score

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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 30
Current: €2,256 EUR|Low: €301 EUR|High: €3,321 EUR|Avg: €893 EUR|-32.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3€301 EUR
Retailer 8€337 EUR
Retailer 11€372 EUR
Retailer 2€478 EUR
Retailer 9€501 EUR
Retailer 6€626 EUR
Retailer 4€667 EUR
Retailer 10€923 EUR
Retailer 7€1,092 EUR
Retailer 5€1,501 EUR
Brilliant Earth€2,256 EUR

41 data points across 11 retailers

12 retailers€337 EUR to €2,256 EUR

Retailer 1
-
€301 EUR
$336 USD
Price last confirmed 12 days ago
A
Retailer 2
-
€337 EUR
$376 USD
View
Final sale: no returns
Retailer 3
-
€372 EUR
$416 USD
View
Price last confirmed 12 days ago
Retailer 4
-
€372 EUR
$416 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€478 EUR
£421 GBP
View
B+
Retailer 6
-
€501 EUR
$560 USD
View
B+
Retailer 7
-
€626 EUR
View
A
Retailer 8
-
€667 EUR
£587 GBP
View
B+
Retailer 9
-
€923 EUR
$1,031 USD
View
B
Retailer 10
-
€1,092 EUR
$1,220 USD
View
B
Retailer 11
-
€1,501 EUR
£1,320 GBP
View
Most Expensive
B
Brilliant Earth
20906944A · Oct 30
€2,256 EUR
$2,520 USD
View
11 more retailers have this diamond
Prices start from €337 EURSave up to €1,919 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
€337 EUR