illustrated in fig1 to 4 is a piece of jewelry commonly known as a necklace and comprises a length of flexible chain 10 having co - operating detachably inter - connectable clasp portions 30 a and 30 b at opposite ends thereof . the clasp portions permit changing the chain length from one state to the other . in one state the chain is of a discrete length and in the other state the chain is in an endless loop . the chain in a preferred embodiment is made of metal in the well known herring bone weave rendering it flexible and while illustrated as being rectangular in outline cross - sectional shape it could be round , elliptical or of other shape . of course , the chain can be composed of plastic or other material and be fabricated of multiple links , loops , a continuous strand , or any other selected weave . the chain in the preferred embodiment however is of substantially constant cross - sectional outline size throughout the length thereof except for a minor length portion 11 proximate the clasp where it is necked down to be of narrower width than the remainder of the chain . of course the dimension of the chain is of no importance other than that the body being greater than in width than the neck . the chain may even comprise several strands joined together at the neck . the basic necklace can be easily and quickly modified by adding thereto one or more decorative jewelry pieces 40 which , as will be seen hereinafter , can also be used as an ear piece illustrated in fig5 . the jewelry piece 40 has a front decorative face 41 and a rear face 42 that has a spaced apart pair of prongs 43 projecting therefrom . the prongs each terminate in an end portion 45 that is turned inwardly toward the other . the prongs provide an open channel 46 that slidably receives therein the chain 10 . the prong terminal ends 45 are spaced apart a distance designated b . the chain necked down portion has a width designated a and the chain a width designated c . the dimension b is greater than a but less than c and this will make it obvious the decorative piece can be placed on and removed from the chain at the necked down portion 11 but elsewhere on the chain is retained thereon by the prongs . the channel 46 is shown as being rectangular but it could readily be of other shape and preferably corresponds to the outline configuration of the chain . entry to the channel is through the gap between the prong ends 45 . the chain maybe a link type chain with the necked down narrower portion being provided for example by a few joined together links smaller in size that the remainder of the links that provide the major length portion of the chain . the chain 10 is shown in fig1 as comprising length portions 10 a and 10 b having at one end thereof respective clasp portions 30 a and 30 b and at the other end are connected to a decorative piece 20 . in the embodiment illustrated in fig1 that connection to piece 20 is permanent . in the embodiment illustrated in fig6 there is a decorative center piece 20 a and detachably connected thereto are respective chain length portions 10 c and 10 d by respective one of a pair of clasp portions 30 a . referring to fig5 there is illustrated an ear piece 50 comprising a decorative piece 40 slidably mounted on a length of chain 51 having a hole 52 proximate one end and a bar 53 at the other end serving as an abutment for the decorative piece 40 . the ear piece is mounted on the ear by a conventional headed pin 54 having a detachable clasp 55 . a necklace of the present invention , in it &# 39 ; s simplest form consists of a length of chain 10 d and one decorative piece 40 slidably mounted thereon . a more elaborate piece is shown in fig1 in which the chain has a center piece 20 and a decorative piece 40 slidably mounted on each of the chain portions 10 a and 10 b . still more elaborate forms can have additional decorative pieces 40 slidably mounted on the chain . the chain can be a quality piece of jewelry and the pieces 40 may be either quality pieces or costume jewelry pieces . there can be circumstances where thievery is of concern with respect to an investment in quality pieces and with the present design there can be duplicate decorative pieces 40 with one being an expensive jewelry piece and the other a fake but perhaps identifiable as such only by a jewelry expert . the jewelry piece 40 has the channel on and extending across the rear face thereof and the front face may have surface formations on or applied thereto and / or gems and / or fake gems mounted thereon to provide the decorative face . the foregoing detailed description is given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom , for modifications will become obvious to those skilled in the art based upon more recent disclosures and may be made without departing from the spirit of the invention and scope of the appended claims .
a jewelry piece that includes a chain or necklace with one or more decorative jewelry pieces removably mounted thereon by way of a narrow necked down minor length portion of the necklace adjacent the necklace clasp . the decorative jewelry pieces have an open ended channel in the rear face thereof slidably receiving therein the necklace . a gap in the channel is wider than the narrow necked down portion but narrower than the remainder of the necklace .