Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 6551666431

Certificate GIA 6551666431

Diamond specifications and retailer prices

From €6,674 EUR
As of November 5, 2026
Save €5,291 EUR (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €11,965 EUR at With Clarity · As of November 6, 2026
View at With Clarity

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551666431. Listed at 14 retailers as of November 5, 2026, with prices from €6,674 to €11,965, a €5,291 spread on the same certified stone. With Clarity lists it at €11,965. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.52°
Pavilion angle39.55°
OriginNatural
Grading LabGIA
CertificateGIA 6551666431
Dimensions10.86 × 5.87 × 3.79 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.86 mm5.87 mm1.50 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551666431
Side View
Table 61.0%Crown 40.52°Girdle: VTN-VTKPavilion 39.55°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €8,806 EUR|Low: €6,674 EUR|High: €12,460 EUR|Avg: €8,546 EUR|-6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 6, 2026
Retailer 9€6,674 EUR
Retailer 10€7,068 EUR
Retailer 7€7,178 EUR
Retailer 6€7,267 EUR
Retailer 8€7,346 EUR
Retailer 11€7,447 EUR
Retailer 5€7,533 EUR
Retailer 2€8,588 EUR
Retailer 12€8,668 EUR
Retailer 1€8,806 EUR
Retailer 4€8,883 EUR
Retailer 3€10,837 EUR
With Clarity€11,965 EUR

38 data points across 13 retailers

14 retailers€6,674 EUR to €11,965 EUR

A
Cheapest Retailer
-
€6,674 EUR
A
Retailer 2
-
€7,068 EUR
View
A
Retailer 3
-
€7,178 EUR
View
A
Retailer 4
-
€7,267 EUR
View
A
Retailer 5
-
€7,346 EUR
View
A
Retailer 6
-
€7,447 EUR
View
A
Retailer 7
-
€7,533 EUR
View
B+
Retailer 8
-
€8,588 EUR
View
B+
Retailer 9
-
€8,668 EUR
View
B+
Retailer 10
-
€8,806 EUR
View
B+
Retailer 11
-
€8,883 EUR
View
B+
Retailer 12
-
€9,626 EUR
View
B+
Retailer 13
-
€10,837 EUR
View
Most Expensive
B
With Clarity
6551666431 · Nov 6
€11,965 EUR
$13,359 USD
View
13 more retailers have this diamond
Prices start from €6,674 EURSave up to €5,291 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.

A
1.50ct Marquise
€6,674 EUR