This Silver Square Black Onyx Stone with Etched Alif and Vav Letters is a Beautiful Addition to Any Collection. If you're a man interested in incorporating some Ottoman Tughra heritage into your ensemble, the Siding Ottoman Tughra Men's Ring is a fantastic choice. Two letters from traditional Arabic calligraphy, alif and vav, are featured in the design. These letters were popular during the Ottoman era. This beautiful ring is made out of sterling silver and features a black onyx stone set in the center. The ring's square silhouette gives it a sleek, contemporary look that works equally well for special occasions and casual outings. The Ottoman Tughra decorates the ring's siding, bringing a sense of history and culture to the arena. Any man who wants to make a statement should have this accessory.