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Marquise|Lab Grown|IGI

1.55ct K SI1 Marquise Lab Grown Diamond

EX • K/SI1 • IGI LG436072673

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072673

Diamond specifications and retailer prices

From $1,313 CAD
As of November 6, 2026
Save $3,840 CAD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,153 CAD at MOH London · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072673 or 436072673. Listed at 9 retailers as of November 5, 2026, with prices from $1,313 to $5,153, a $3,840 spread on the same certified stone. MOH London lists it at $5,153. 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072673
Dimensions11.27 × 6.26 × 3.85 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.27 mm6.26 mm1.55 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072673
Side View
Table 61.5%Crown 34°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 61.5%

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 6
Current: $5,153 CAD|Low: $1,261 CAD|High: $5,236 CAD|Avg: $2,711 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,313 CAD
Retailer 5$1,524 CAD
Retailer 8$1,665 CAD
Retailer 2$1,767 CAD
Retailer 7$2,244 CAD
Retailer 6$2,438 CAD
Retailer 3$3,283 CAD
Retailer 9$4,360 CAD
MOH London$5,153 CAD

19 data points across 9 retailers

9 retailers$1,313 CAD to $5,153 CAD

A
Cheapest Retailer
-
$1,313 CAD
A
Retailer 2
-
$1,429 CAD
View
Retailer 3
-
$1,524 CAD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,524 CAD
View
B+
Retailer 5
-
$1,767 CAD
View
B+
Retailer 6
-
$2,438 CAD
View
B
Retailer 7
-
$3,283 CAD
View
B
Retailer 8
-
$4,283 CAD
View
Most Expensive
B
MOH London
LG436072673 · Nov 5
$5,153 CAD
£2,905 GBP
View
8 more retailers have this diamond
Prices start from $1,313 CADSave up to $3,840 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
$1,313 CAD