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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6565156521

Certificate GIA 6565156521

Diamond specifications and retailer prices

From €6,035 EUR
As of November 6, 2026
Save €4,184 EUR (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €10,219 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565156521. Listed at 14 retailers as of November 4, 2026, with prices from €6,035 to €10,219, a €4,184 spread on the same certified stone. MOH London lists it at €10,219. 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

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6565156521
Dimensions11.05 × 5.97 × 3.68 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Cavity, Pinpoint, Natural
Top View
11.05 mm5.97 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6565156521
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.6%

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: €10,219 EUR|Low: €5,499 EUR|High: €10,369 EUR|Avg: €7,159 EUR|-1.3%
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 7, 2026
Retailer 5€6,035 EUR
Retailer 9€6,175 EUR
Retailer 11€6,372 EUR
Retailer 8€6,762 EUR
Retailer 10€6,862 EUR
Retailer 2€6,937 EUR
Retailer 6€6,951 EUR
Retailer 12€7,106 EUR
Retailer 3€7,425 EUR
Retailer 4€7,425 EUR
Retailer 13€7,493 EUR
Retailer 14€7,667 EUR
Retailer 7€7,987 EUR
MOH London€10,219 EUR

37 data points across 14 retailers

14 retailers€6,035 EUR to €10,219 EUR

B+
Cheapest Retailer
-
€6,035 EUR
B
Retailer 2
-
€6,175 EUR
View
B
Retailer 3
-
€6,372 EUR
View
B
Retailer 4
-
€6,762 EUR
View
B
Retailer 5
-
€6,862 EUR
View
B
Retailer 6
-
€6,937 EUR
View
B
Retailer 7
-
€6,951 EUR
View
B
Retailer 8
-
€7,106 EUR
View
B
Retailer 9
-
€7,425 EUR
View
B
Retailer 10
-
€7,425 EUR
View
B
Retailer 11
-
€7,493 EUR
View
B
Retailer 12
-
€7,667 EUR
View
B
Retailer 13
-
€7,987 EUR
View
Most Expensive
B
MOH London
33DFA88A3 · Nov 4
€10,219 EUR
£8,984 GBP
View
13 more retailers have this diamond
Prices start from €6,035 EURSave up to €4,184 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+
1.50ct Marquise
€6,035 EUR