RARE "Watermelon" Dual-Glow Uranium & Selenium Beaded Rosette Brooch

The "Watermelon" Holy Grail

For the serious UV glass collector, the "Watermelon" effect is one of the most sought-after phenomena. This exquisite hand-beaded rosette features a rare dual-spectrum reaction: a neon-green "lime" center framed by a vibrant "berry" pink halo.

While single-color Uranium glass is a staple, finding a piece that balances both Uranium (Green) and Selenium or High-Manganese (Pink) in one cohesive design is an exceptional rarity.

Collector’s Profile

• The Glow: Under a UV light (365nm recommended for peak vibrancy), the central marquise-cut petals ignite into a brilliant radioactive green. The surrounding beaded border reacts in a high-contrast hot pink/magenta.

• The Construction: A masterfully crafted circular rosette. The dark, iridescent base beads provide a moody, "Gothic Revival" aesthetic in natural light, making the hidden neon transformation even more dramatic.]

• Versatility: Features a secure pin-back. A standout statement piece for a lapel, velvet choker, or a centerpiece for a "Glow" display cabinet.

Why This Piece Commands a Premium

1. Dual-Reactive Chemistry: Most vintage jewelry only uses one type of reactive glass. This piece utilizes two distinct elemental dopants to achieve the "Watermelon" look.

2. Intricate Beadwork: Unlike mass-produced molded plastic, this is a detailed textile-and-glass construction, appealing to both jewelry historians and "oddity" collectors.

3. Investment Grade: As the "Glow" hobby continues to explode in 2026, multi-reactive pieces like this are seeing the highest appreciation in value.