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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 $7,869 SGD
As of November 6, 2026
Save $6,853 SGD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,722 SGD 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 $7,869 to $14,722, a $6,853 spread on the same certified stone. MOH London lists it at $14,722. 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
Colour
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: $14,722 SGD|Low: $7,869 SGD|High: $14,761 SGD|Avg: $10,219 SGD|-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$7,869 SGD
Retailer 10$8,214 SGD
Retailer 4$8,496 SGD
Retailer 9$8,810 SGD
Retailer 8$9,898 SGD
Retailer 12$9,918 SGD
Retailer 13$10,139 SGD
Retailer 2$10,268 SGD
Retailer 3$10,586 SGD
Retailer 5$10,586 SGD
Retailer 7$10,897 SGD
Retailer 6$10,945 SGD
Retailer 11$11,678 SGD
MOH London$14,722 SGD

10 data points across 14 retailers

15 retailers$7,869 SGD to $14,722 SGD

B+
Cheapest Retailer
-
$7,869 SGD
B+
Retailer 2
-
$8,214 SGD
View
B+
Retailer 3
-
$8,239 SGD
View
B+
Retailer 4
-
$8,496 SGD
View
B+
Retailer 5
-
$8,810 SGD
View
B+
Retailer 6
-
$9,898 SGD
View
B
Retailer 7
-
$9,918 SGD
View
B
Retailer 8
-
$10,139 SGD
View
B
Retailer 9
-
$10,268 SGD
View
B
Retailer 10
-
$10,586 SGD
View
B
Retailer 11
-
$10,586 SGD
View
B
Retailer 12
-
$10,897 SGD
View
B
Retailer 13
-
$10,945 SGD
View
B
Retailer 14
-
$11,678 SGD
View
Most Expensive
B
MOH London
6F1376AF6 · Nov 4
$14,722 SGD
£9,045 GBP
View
14 more retailers have this diamond
Prices start from $7,869 SGDSave up to $6,853 SGD

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
$7,869 SGD