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 $525 CAD
$376 USD
As of October 30, 2026
Save $2,995 CAD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,520 CAD 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 $525 to $3,520, a $2,995 spread on the same certified stone. Brilliant Earth lists it at $3,520. 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

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: $3,520 CAD|Low: $469 CAD|High: $5,182 CAD|Avg: $1,391 CAD|-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$469 CAD
Retailer 8$525 CAD
Retailer 11$581 CAD
Retailer 2$746 CAD
Retailer 9$782 CAD
Retailer 6$977 CAD
Retailer 4$1,041 CAD
Retailer 10$1,440 CAD
Retailer 7$1,704 CAD
Retailer 5$2,342 CAD
Brilliant Earth$3,520 CAD

43 data points across 11 retailers

12 retailers$525 CAD to $3,520 CAD

Retailer 1
-
$469 CAD
$336 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$525 CAD
$376 USD
View
Final sale: no returns
Retailer 3
-
$581 CAD
$416 USD
View
Price last confirmed 11 days ago
Retailer 4
-
$581 CAD
$416 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$746 CAD
£421 GBP
View
B+
Retailer 6
-
$782 CAD
$560 USD
View
B+
Retailer 7
-
$977 CAD
€666 EUR
View
A
Retailer 8
-
$1,041 CAD
£587 GBP
View
B+
Retailer 9
-
$1,440 CAD
$1,031 USD
View
B
Retailer 10
-
$1,704 CAD
$1,220 USD
View
B
Retailer 11
-
$2,342 CAD
£1,320 GBP
View
Most Expensive
B
Brilliant Earth
20906944A · Oct 30
$3,520 CAD
$2,520 USD
View
11 more retailers have this diamond
Prices start from $525 CADSave up to $2,995 CAD

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
$525 CAD