Please note that our showroom address has changed. Our new address is  550 Fifth Avenue, Suite 700.


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Factors of the Cut

Ideal Finish is Important

An optimally proportioned diamond needs to have excellent finish as well. In diamond finishing, the focus is on external symmetry and polish. In order to attain excellent symmetry, the diamond is only allowed symmetry irregularities that are extremely difficult to locate under 10X magnification or none at all.

Typical symmetry problems a diamond can have are:

1. Tables or culets off center
2. Girdle outline out of round
3. Misshapen facets
4. Unequal sizes of opposing facets
5. table not octagonal
6. Wavy girdles
7. misaligned facets
8. Pavilion and crown main facet out of alignment
9. facets failing to point properly.

Reflective Symmetry is very important

Excellent Optical Reflective symmetry describes the proper alignment of facets in a precise three-dimensional fashion in relationship to each other that is capable of producing a light reflection pattern that is symmetrical, coherent, and efficient. This results in the highest quality internal flow of light to the crown that can be achieved for that particular cut model. This metric focuses on the micro faceting detail of the diamond. This excellent optical symmetry is easily identified by a Hearts and Arrow pattern for a traditional round brilliant cut when viewing the diamond through an Optical Symmetry Viewer.


Hearts And Arrows
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Saturday 11:30am to 5:30pm.

David S. Diamonds
550 Fifth Ave, Suite 700, New York, NY 10036



Phone: 1-888-DAVID81 or (212) 921-8029
Fax: (212) 827-0036
Email: davidsdia@aol.com