Jewelry is one of many fields which have been affected by Judaism and Jewish mysticism and symbolism. A Jewish silver, gold and costume jewelry reflects both traditional and lesser-known Jewish symbols.
The most widely known example of Jewish jewelry is the Star of David (מגן דוד, Magen David, literally 'Shield of David'), a six-pointed star (hexagram) and the best-known symbol of Judaism. Although its earliest use dates back to the 7th century BCE, its use as a symbol of Judaism is a relatively modern. It is mentioned neither by Tanakh nor Talmud and its name should refer to the shape of King David's shield. In the Middle Ages it was known as the 'Seal of Solomon' and according to the Kabbalah the two equilateral triangles represent the dichotomies inherent in man (good vs. evil or spirituality vs. physicality). Since the 19th century it is generally accepted symbol of Judaism. It became symbol of Zionist movement in 1897 and since 1948 it has been part of Israeli flag. Yellow-coloured Star of David was used by Nazis to identify Jews during the Holocaust.
A palm-shaped amulet, known as hamsa (חמסה, khamsa, literally 'five'), is quite popular among Sephardic Jewish communities in Northern Africa and in the Middle East. It is a common to both Judaism and Islam, although in each religion it has a different symbolism. It looks like a symmetrical palm and it does not reflect human anatomy. Hamsa is a protective amulet against evil eye and it often contains an eye symbol, fish or a Hebrew inscription. According to Jewish symbology five fingers represent the five books of the Torah. It is sometimes referred as the 'hand of Miriam', who was the sister of biblical Aaron and Moses. Hamsa is often worn as part of necklaces.
There are also popular Kabbalistic symbols. Kabbalah (קבלה) is a Jewish mysticism and esoteric teaching. Its beginnings can be found in some parts of the Tanakh and in the Sefer Yetzirah. Other teaching's sources include Zohar and Sefer Ha-Bahir. The basis of the Kabbalah, which is a secret and complex set of teachings, is a continuous interaction between man and G-d, while G-d is viewed as 'infinite source of strength and wisdom.' Nowadays, Kabbalah is still practised in some circles. There is a specific stream of Kabbalah known as New Age Kabbalah.
In addition to these symbols, there are many other Jewish symbols, which can be purchased as a jewel.