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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 €5,499 EUR
As of November 6, 2026
Save €4,789 EUR (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €10,289 EUR 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 €5,499 to €10,289, a €4,789 spread on the same certified stone. MOH London lists it at €10,289. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €10,289 EUR|Low: €5,499 EUR|High: €10,316 EUR|Avg: €7,142 EUR|-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€5,499 EUR
Retailer 10€5,740 EUR
Retailer 4€5,937 EUR
Retailer 9€6,157 EUR
Retailer 8€6,917 EUR
Retailer 12€6,932 EUR
Retailer 13€7,086 EUR
Retailer 2€7,176 EUR
Retailer 3€7,398 EUR
Retailer 5€7,398 EUR
Retailer 7€7,616 EUR
Retailer 6€7,649 EUR
Retailer 11€8,161 EUR
MOH London€10,289 EUR

10 data points across 14 retailers

15 retailers€5,499 EUR to €10,289 EUR

B+
Cheapest Retailer
-
€5,499 EUR
B+
Retailer 2
-
€5,740 EUR
View
B+
Retailer 3
-
€5,758 EUR
View
B+
Retailer 4
-
€5,937 EUR
View
B+
Retailer 5
-
€6,157 EUR
View
B+
Retailer 6
-
€6,917 EUR
View
B
Retailer 7
-
€6,932 EUR
View
B
Retailer 8
-
€7,086 EUR
View
B
Retailer 9
-
€7,176 EUR
View
B
Retailer 10
-
€7,398 EUR
View
B
Retailer 11
-
€7,398 EUR
View
B
Retailer 12
-
€7,616 EUR
View
B
Retailer 13
-
€7,649 EUR
View
B
Retailer 14
-
€8,161 EUR
View
Most Expensive
B
MOH London
6F1376AF6 · Nov 4
€10,289 EUR
£9,045 GBP
View
14 more retailers have this diamond
Prices start from €5,499 EURSave up to €4,789 EUR

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
€5,499 EUR