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Marquise|Lab Grown|IGI

2.55ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG831648740

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831648740

Diamond specifications and retailer prices

From $679 CAD
HK$3,800 HKD
As of October 30, 2026
Save $2,617 CAD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,297 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.55ct lab-grown marquise diamond

This 2.55ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG831648740 or 831648740. Listed at 16 retailers as of October 30, 2026, with prices from $679 to $3,297, a $2,617 spread on the same certified stone. Brilliant Earth lists it at $3,297. 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

2.55
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648740
Dimensions13.93 × 7.15 × 4.59 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.93 mm7.15 mm2.55 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831648740
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.2%

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: $3,297 CAD|Low: $556 CAD|High: $5,420 CAD|Avg: $1,746 CAD|-39.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 3$556 CAD
Retailer 5$679 CAD
Retailer 8$773 CAD
Retailer 7$929 CAD
Retailer 10$949 CAD
Retailer 13$986 CAD
Retailer 9$1,101 CAD
Retailer 4$1,180 CAD
Retailer 6$1,493 CAD
Retailer 2$1,925 CAD
Retailer 11$2,407 CAD
Retailer 12$2,885 CAD
Brilliant Earth$3,297 CAD

41 data points across 13 retailers

16 retailers$679 CAD to $3,297 CAD

Retailer 1
-
$496 CAD
$355 USD
Price last confirmed 14 days ago
Retailer 2
-
$576 CAD
$412 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$615 CAD
$440 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$679 CAD
HK$3,800 HKD
View
A
Retailer 5
-
$773 CAD
£436 GBP
View
B+
Retailer 6
-
$929 CAD
$665 USD
View
A
Retailer 7
-
$949 CAD
€647 EUR
View
B
Retailer 8
-
$986 CAD
$706 USD
View
B+
Retailer 9
-
$1,101 CAD
£621 GBP
View
B+
Retailer 10
-
$1,180 CAD
$845 USD
View
B
Retailer 11
-
$1,493 CAD
$1,069 USD
View
B
Retailer 12
-
$1,925 CAD
SGD 1,862 SGD
View
Retailer 13
-
$1,978 CAD
$1,416 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$2,407 CAD
£1,357 GBP
View
B
Retailer 15
-
$2,885 CAD
$2,065 USD
View
Most Expensive
B
Brilliant Earth
21273875A · Oct 30
$3,297 CAD
$2,360 USD
View
15 more retailers have this diamond
Prices start from $679 CADSave up to $2,617 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
2.55ct Marquise
$679 CAD