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Marquise|Natural|GIA

1.55ct J SI2 Marquise Natural Diamond

ID • J/SI2 • GIA 5566379400

Certificate GIA 5566379400

Diamond specifications and retailer prices

From $8,575 CAD
As of November 6, 2026
Save $7,468 CAD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,043 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.55ct natural marquise diamond

This 1.55ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566379400. Listed at 15 retailers as of November 4, 2026, with prices from $8,575 to $16,043, a $7,468 spread on the same certified stone. MOH London lists it at $16,043. 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
J
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566379400
Dimensions12.55 × 5.89 × 3.73 mm
L/W Ratio2.13
Girdle conditionFaceted
Culet sizeNone
Top View
12.55 mm5.89 mm1.55 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566379400
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $16,043 CAD|Low: $8,575 CAD|High: $16,086 CAD|Avg: $11,136 CAD|-0.3%
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
November 6, 2026
Retailer 14$8,575 CAD
Retailer 10$8,951 CAD
Retailer 4$9,258 CAD
Retailer 9$9,600 CAD
Retailer 8$10,786 CAD
Retailer 12$10,808 CAD
Retailer 13$11,049 CAD
Retailer 2$11,190 CAD
Retailer 3$11,536 CAD
Retailer 5$11,536 CAD
Retailer 7$11,875 CAD
Retailer 6$11,927 CAD
Retailer 11$12,726 CAD
MOH London$16,043 CAD

10 data points across 14 retailers

15 retailers$8,575 CAD to $16,043 CAD

B+
Cheapest Retailer
-
$8,575 CAD
B+
Retailer 2
-
$8,951 CAD
View
B+
Retailer 3
-
$8,979 CAD
View
B+
Retailer 4
-
$9,258 CAD
View
B+
Retailer 5
-
$9,600 CAD
View
B+
Retailer 6
-
$10,786 CAD
View
B
Retailer 7
-
$10,808 CAD
View
B
Retailer 8
-
$11,049 CAD
View
B
Retailer 9
-
$11,190 CAD
View
B
Retailer 10
-
$11,536 CAD
View
B
Retailer 11
-
$11,536 CAD
View
B
Retailer 12
-
$11,875 CAD
View
B
Retailer 13
-
$11,927 CAD
View
B
Retailer 14
-
$12,726 CAD
View
Most Expensive
B
MOH London
6F1376AF6 · Nov 4
$16,043 CAD
£9,045 GBP
View
14 more retailers have this diamond
Prices start from $8,575 CADSave up to $7,468 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.

B+
1.55ct Marquise
$8,575 CAD