Stock material or miscellaneous articles – Three dimension imitation or 'treated' natural product
Reexamination Certificate
1997-05-30
2001-01-09
Speer, Timothey M. (Department: 1772)
Stock material or miscellaneous articles
Three dimension imitation or 'treated' natural product
C063S028000
Reexamination Certificate
active
06171666
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a novel arrangement of precious stones, and more particularly, to the arrangement and setting of a trio of precious stones, such as diamonds, in a manner which provides the appearance of a single larger marquise, navette or other shaped stone.
Precious stones such as diamonds have varying commercial and esthetic value depending, among other factors, on their color, clarity, cut, and size. While color, clarity and cut are important factors in the marketability of a gem or setting, the size of a gem contributes greatly to the purchaser's perception of value and desirability. Ordinarily, in order to present a large viewable surface of a precious stone such as a diamond, it is necessary to employ a large stone. This can entail a considerable expense. Unfortunately, some natural gem stones are not readily available in sufficient quantity in the desired larger sizes to meet the market demand or, if available, are prohibitively expensive in the larger sizes. As a result, certain types of larger stones, such as emeralds, are now man made. However, this solution is not practical with diamonds. Additionally, consumers generally prefer natural gem stones over artificial ones, so the creation of man made stones, where possible, does not address this problem
One known solution is to employ settings that hold two smaller stones together to provide the appearance of a single larger stone. A combination of smaller stones costs less than a single larger stone having the same total weight and there is less loss of stone in the cutting process. This known technique has been attempted by the present inventor and others for producing so-called Marquise or Navette stones.
One known technique for constructing a composite marquise or navette stone has been to assemble two half-marquise stones, base-to-base, giving the appearance of a contiguous whole. The composite stone created by this method is, however, limited based on the geometry and proportions of the resulting assembled stone, as well as by the cost and availability of suitable stones for cutting larger half-marquise stones. It would therefore be desirable to create a composite marquise stone of a larger size than that produced using two half marquise stones, while still retaining the general marquise appearance in order to satisfy the demands of the market.
Some prior attempts to assemble smaller stones into a larger contiguous whole have not been entirely successful in that the assembled stones often exhibit a dark band or zone in the region of the juncture between stones and/or include joints which are apparent. Additionally, dust and dirt particles become wedged between the stones when the joints are apparent. These disadvantages detract from the value and beauty of the assembled stones.
Prior attempts to eliminate these undesirable qualities have not been entirely successful. One reason for this lack of success is that the marquise-halves or escutcheons are generally elliptical stones and the same basic cutting methods have been applied to them as has been used for the “brilliant” cutting of generally circular stones. This generally resulted in “dark zones” in the assembled stones because of less than optimal light reflection.
BRIEF SUMMARY OF THE INVENTION
Briefly stated, the present invention is a composite jewelry stone. The composite stone includes a first half stone having a mating edge and an opposing apex and a second half stone having a mating edge and an opposing apex. A baguette having a first mating edge and a second, opposing mating edge is provided. The baguette is mounted between the first and second half stones such that the first half stone mating edge is in alignment with the first mating edge of the baguette and the second half stone mating edge is in alignment with the second mating edge of the baguette.
In another aspect, the present invention provides a composite marquise jewelry stone. The composite stone includes a first half-marquise stone having a mating edge and an opposing apex and a second half-marquise stone having a mating edge and an opposing apex. A baguette having a first mating edge and a second, opposing mating edge is provided. The baguette is mounted between the first and second half-marquise stones such that the first half-marquise stone mating edge is in alignment with the first mating edge of the baguette and the second half-marquise stone mating edge is in alignment with the second mating edge of the baguette.
In another aspect, the present invention provides a composite marquise jewelry stone. The composite stone comprises a first half-marquise stone having a mating edge and an opposing apex and a second half-marquise stone having a mating edge and an opposing apex. Two baguettes, each having a first mating edge and a second, opposing, mating edge are provided. The two baguettes are mounted between the first and second half-marquise stones such that the first half-marquise stone mating edge is in alignment with the first mating edges of the two baguettes and the second half-marquise stone mating edge is in alignment with the second mating edges of the two baguettes.
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Declaration of Leda Taveras, dated Jan. 6, 1997.
Declaration of Robert Wueste, dated Jan. 6, 1997.
“A Blazing Display Of Brilliant desi
Akin Gump Strauss Hauer & Feld L.L.P.
Speer Timothey M.
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