These 3.8mm – 4.0mm hotfix crystals bring rich blue-violet to coverage work, accents, and costume designs at an accessible price point. Viva12 Hotfix by Preciosa is a more economical Preciosa crystal, made in Preciosa factories, with heat-activated convenience built right in. For comparable non-hotfix, Shop LUX European Crystal Flatback Rhinestones Deep Tanzanite 16ss.
Why You'll Love Them
- 16ss (3.8mm – 4.0mm) size ideal for general coverage and versatile embellishment
- Hotfix backing for fast, clean application to fabric
- Rich blue-violet Deep Tanzanite color reads with gemstone-like depth under stage lighting
- Genuine Preciosa crystal made in Preciosa factories at a budget-friendly price
- Uniform stones in every pack, so no culling required
Packaging Options
- Best Value: 10 gross (1,440 pieces)
Crystal Size Reference Guide
| Stone Size (ss) | Size (mm) | Common Name | Best Use |
|---|---|---|---|
| 5ss | 1.7mm – 1.9mm | Extra Small | Fine detail, nail art |
| 7ss | 2.1mm – 2.3mm | Extra Small | Fine detail, nail art |
| 9ss | 2.5mm – 2.7mm | Small | Outlines, accents |
| 12ss | 3.0mm – 3.2mm | Small | Outlines, accents |
| 16ss | 3.8mm – 4.0mm | Mid-Sized | General coverage |
| 20ss | 4.6mm – 4.8mm | Most Popular | Dance and costume use |
| 30ss | 6.3mm – 6.5mm | Large | Bold accents |
| 34ss | 7.0mm – 7.3mm | Extra Large | Statement pieces |
| 40ss | 8.4mm – 8.7mm | Oversized | Maximum sparkle and drama |
| 48ss | 10.9mm – 11.3mm | Oversized | Maximum sparkle and drama |
Browse our full Deep Tanzanite color collection or shop all Preciosa Viva12 hotfix rhinestones.
