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Marquise|Lab Grown|IGI

1.55ct I SI1 Marquise Lab Grown Diamond

ID • I/SI1 • IGI LG436046738

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436046738

Diamond specifications and retailer prices

From $1,299 CAD
$930 USD
As of October 31, 2026
Save $5,705 CAD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,004 CAD at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046738 or 436046738. Listed at 12 retailers as of October 29, 2026, with prices from $1,299 to $7,004, a $5,705 spread on the same certified stone. MOH London lists it at $7,004. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046738
Dimensions11.23 × 6.17 × 3.90 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.23 mm6.17 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046738
Side View
Table 58.5%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

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 31
Current: $7,004 CAD|Low: $1,299 CAD|High: $7,050 CAD|Avg: $3,239 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 8$1,299 CAD
Retailer 9$1,869 CAD
Retailer 13$2,034 CAD
Retailer 15$2,093 CAD
Retailer 10$2,168 CAD
Retailer 14$2,168 CAD
Retailer 3$2,410 CAD
Retailer 7$2,727 CAD
Retailer 5$2,980 CAD
Retailer 2$3,096 CAD
Retailer 11$3,427 CAD
Retailer 4$4,041 CAD
Retailer 12$4,064 CAD
Retailer 6$6,207 CAD
MOH London$7,004 CAD

38 data points across 15 retailers

12 retailers$1,299 CAD to $7,004 CAD

A
Cheapest Retailer
-
$1,299 CAD
$930 USD
B+
Retailer 2
-
$1,869 CAD
$1,338 USD
View
B+
Retailer 3
-
$2,034 CAD
$1,456 USD
View
B+
Retailer 4
-
$2,093 CAD
$1,498 USD
View
Final sale: no returns
Retailer 5
-
$2,168 CAD
$1,552 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,168 CAD
$1,552 USD
View
B+
Retailer 7
-
$2,410 CAD
$1,725 USD
View
B
Retailer 8
-
$3,096 CAD
£1,745 GBP
View
B
Retailer 9
-
$3,427 CAD
$2,453 USD
View
B
Retailer 10
-
$4,041 CAD
$2,893 USD
View
B
Retailer 11
-
$4,064 CAD
$2,909 USD
View
Most Expensive
B
MOH London
LG436046738 · Oct 29
$7,004 CAD
£3,948 GBP
View
11 more retailers have this diamond
Prices start from $1,299 CADSave up to $5,705 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
1.55ct Marquise
$1,299 CAD