The Van Cleef & Arpels Alhambra Cornelian and Diamond 18 Karat Yellow Gold Ring is an exquisite piece of jewelry that exemplifies the brand's iconic design and craftsmanship. Here are its key features:

1. Design: The ring is part of the Alhambra collection, known for its clover motif which symbolizes luck, health, fortune, and love. This particular ring features the clover design with a unique twist—one of the petals dangles freely, adding a playful and dynamic element to the piece.

2. Materials:

   • Gold: The ring is crafted from 18 karat yellow gold, known for its rich, warm hue and durability.
   • Cornelian: The clover motif is inlaid with cornelian, a semi-precious gemstone known for its vibrant red-orange color.
   • Diamond: A round brilliant cut diamond is set in the center of the clover, adding a touch of sparkle and elegance.

3. Gemstone Details:

   • Cornelian: The cornelian inlay is smooth and polished, enhancing its natural luster and the overall aesthetics of the ring.
   • Diamond: The round brilliant cut diamond is precisely cut to maximize its brilliance and fire. It is securely set in the center, drawing attention to the heart of the clover motif.

4. Craftsmanship: As with all Van Cleef & Arpels pieces, the ring is crafted with meticulous attention to detail. The high polish of the yellow gold and the precise setting of the cornelian and diamond reflect the brand's commitment to excellence.

5. Comfort and Wearability: The ring is designed to be both beautiful and comfortable to wear. The dangling petal adds a unique charm, while the smooth edges and thoughtful design ensure a comfortable fit.

6. Symbolism: The Alhambra collection is inspired by the four-leaf clover, and this ring continues that tradition by symbolizing good luck and positive energy. The combination of cornelian and diamond also adds layers of meaning, with cornelian traditionally symbolizing courage and motivation, and diamonds representing purity and strength.

In summary, the Van Cleef & Arpels Alhambra Cornelian and Diamond 18 Karat Yellow Gold Ring is a luxurious and meaningful piece of jewelry, combining the beauty of cornelian and diamonds with the timeless elegance of yellow gold and the iconic Alhambra design.