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Marquise|Natural|GIA

1.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551670301

Certificate GIA 6551670301

Diamond specifications and retailer prices

From €10,205 EUR
CA$15,835 CAD
As of October 30, 2026
Save €5,616 EUR (35%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €15,821 EUR at MOH London · As of November 1, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551670301. Listed at 9 retailers as of October 30, 2026, with prices from €10,205 to €15,821, a €5,616 spread on the same certified stone. MOH London lists it at €15,821. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551670301
Dimensions11.43 × 5.89 × 3.77 mm
L/W Ratio1.94
Top View
11.43 mm5.89 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551670301
Side View
Table 60.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 64.0%

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: Oct 30
Current: €15,821 EUR|Low: €8,580 EUR|High: €15,821 EUR|Avg: €10,977 EUR|+12.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9€8,631 EUR
Retailer 10€9,975 EUR
Retailer 4€10,205 EUR
Retailer 2€10,865 EUR
Retailer 6€11,249 EUR
Retailer 5€12,030 EUR
Retailer 8€12,546 EUR
Retailer 3€12,764 EUR
Retailer 7€13,326 EUR
MOH London€15,821 EUR

24 data points across 10 retailers

9 retailers€10,205 EUR to €15,821 EUR

Retailer 1
-
€9,975 EUR
A$17,144 AUD
Price last confirmed 28 days ago
B+
Retailer 2
-
€10,205 EUR
CA$15,835 CAD
View
B+
Retailer 3
-
€10,865 EUR
£9,558 GBP
View
B+
Retailer 4
-
€11,249 EUR
$12,567 USD
View
B+
Retailer 5
-
€11,993 EUR
$13,399 USD
View
B+
Retailer 6
-
€12,030 EUR
$13,440 USD
View
B
Retailer 7
-
€12,546 EUR
$14,017 USD
View
B
Retailer 8
-
€12,764 EUR
View
Most Expensive
B
MOH London
0F8B4BE1C · Nov 1
€15,821 EUR
£13,918 GBP
View
8 more retailers have this diamond
Prices start from €10,205 EURSave up to €5,616 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
€10,205 EUR