CRYSTAL COVE Eyeglasses by Blackfin. Color: Brown/Gold, Blue/Pink, Green/Light Blue, Purple-Lilac Gradient/Purple, Blue-Pink Gradient/Blue, Size: 51-18-145. Change your perception of eyewear with the Blackfin CRYSTAL COVE, a model that enchants with its irregular shape and large, graceful lenses. The design exudes a lightness that feels almost intangible, offering a unique balance between bold expression and subtle elegance. Crafted with precision, these frames enhance your look without overpowering it. Embrace a sense of serene sophistication as the CRYSTAL COVE elevates your everyday style.