French Riviera Jewelers offers Gregg Ruth Jewelry Collection in Coral Gables, Miami Florida USA. Far from one-dimensional, the Gregg Ruth brand has developed many signature fashion- forward collections over the years. Cascata, an elegant series of baguette pieces, and Heartbeat—a heart-shaped collection featuring custom cut tapered baguettes were introduced in the early 2000’s and brought the Gregg Ruth look to a wider, international demographic.