Heritage Jewelry has designed 3 pendant sizes that are tailored to the wearers specific loved ones. The calendar can be a Zodiac, Roman Numeral or Classic design depicting the 12 months of the year. The wearer typically places their birthstone in the center with as many loved ones depicted by birthstones (or whatever stones you would like) in the surrounding slices. When ordering, please specify the center stone/birthday as well as all other stones/dates you would like included in your order not Yellow Gold Jewelry With Adjustable Chain And Rectangular Pendant, Oval Cable Chain Jewelry As Gift, Oval Cable Chain Jewelry Gift, Gift Jewelry With Oval Cable Chain, Dainty Yellow Gold Rectangular Pendant Jewelry, Formal Rectangular Pendant Chain Jewelry, Luxury Oval Link Delicate Chain Jewelry, Formal Jewelry With Adjustable Chain And Rectangular Shape, Elegant Recycled Gold Chain Necklace Gift