Flatback Rhinestones – Siam 9ss – MAXIMA Crystals by Preciosa®

Add deep, luxurious red to your intricate designs with 9ss MAXIMA Flatback Rhinestones by Preciosa® in Siam. These 2.5mm crystals feature a classic ruby tone with rich saturation—perfect for nail art, small accessories, and detail work that needs precise, vibrant sparkle.

Why You’ll Love Them

• Color: Siam – intense ruby red with timeless elegance and depth
• Size: 9ss (approx. 2.5mm) – ideal for small-scale embellishments and micro accents
• Flatback design works with high-quality adhesives on a variety of surfaces
• MAXIMA precision cut ensures superior brilliance, clarity, and consistency
• Lead-free and responsibly crafted in the Czech Republic

Packaging Options

• Best Value: 10 Gross Pack (1440 pieces)
• Also Available: 3 Packs of 160 pieces (480 pieces total)
• Single Pack: 160 pieces

If you're looking for more alternatives, consider Siam Red 09ss Crystal Collections. 

What is MAXIMA Crystal by Preciosa®?

MAXIMA Crystal by Preciosa® is the highest-quality European branded crystal available today—Preciosa’s most premium line and a top choice for luxury hand-crafted creations. Produced in the historic Crystal Valley of Bohemia, these lead-free crystals represent centuries of artistry, precision cutting, and crystal innovation.

Preciosa is a global leader in crystal manufacturing with a legacy rooted in ethical business practices, artisan support, and sustainable production. As an Authorized Preciosa Partner, Rhinestones Unlimited is proud to supply authentic MAXIMA crystals that reflect brilliance, craftsmanship, and a commitment to supporting creative professionals worldwide.

Why Choose MAXIMA Crystals?

• Meets the highest industry standards for quality and ecological certifications
• Engineered with additional precision cuts for intense brilliance and optical performance
• Superior faceting for unmatched light refraction and sparkle
• Strict quality control ensures consistency in size, shape, and clarity
• Durable silver-backed foiling and reliable hotfix glue for lasting adhesion
• Luxurious packaging that reflects the elevated quality of the crystals inside
• Brand use is available for your products featuring MAXIMA Crystal by Preciosa®

Crystal Size Reference Guide