The difference in the material of crystal diamonds, as well as the advantages and disadvantages
The following is the extraction of key information from this document:
Definition and Classification
1.Crystal rhinestones are synthetic materials or cut crystals that imitate diamonds.
2.Common types include Cubic Zirconia (CZ), Moissanite (SiC), quartz (crystal), and lead glass (rhinestones).
Physical and Optical Properties
1.Quartz (Crystal): Composition is SiO₂, Mohs hardness is 7, refractive index is 1.54 - 1.55, dispersion value is 0.013, and density is 2.65 g/cm³.
2.Cubic Zirconia (CZ): Composition is ZrO₂ + Y₂O₃, Mohs hardness is 8.5, refractive index is 2.15 - 2.18, dispersion value is 0.058 - 0.066, and density is 5.6 - 6.0 g/cm³.
3.Moissanite: Composition is SiC, Mohs hardness is 9.25, refractive index is 2.65 - 2.69, dispersion value is 0.104, and density is 3.22 g/cm³.
4.Natural Diamond: Composition is C, Mohs hardness is 10, refractive index is 2.42, dispersion value is 0.044, and density is 3.52 g/cm³.
Production Processes
1.Cutting and Polishing: Precision - cut diamond - imitation materials to enhance brilliance, and lead glass needs to be coated.
2.Synthesis Technologies: CZ uses the melting method, Moissanite uses the Chemical Vapor Deposition (CVD) method, and synthetic quartz uses the hydrothermal method.
Application Fields
1.Jewelry: Used in mid - end fashion brand ornaments.
2.Fashion Decoration: For clothing, shoes, bags, headwear, etc.
3.Industrial Uses: Moissanite is used for cutting tools, and synthetic quartz is used for optical instruments and as the base material for electronic components.
Market and Prices (Taking 1 Carat as an Example)
1.Natural Diamond: $3,000 - $30,000 +.
2.Moissanite: $300 - $600.
3.Cubic Zirconia: $20 - $100.
4.Crystal / Rhinestones: $1 - $50.
5.Brand Examples: Swarovski (lead - glass - coated rhinestones), Charles & Colvard (a patented brand for Moissanite).
Identification Methods
1.Visual Inspection: Observe brilliance and edge wear.
2.Instrumental Detection: Use a thermal conductivity detector, ultraviolet fluorescence, and magnification inspection.
Comparison of Advantages and Disadvantages
1.Natural Diamond: Advantages are scarcity, high hardness, and value preservation; disadvantages are high cost and ethical issues.
2.Moissanite: Advantages are strong brilliance, high hardness, and high cost - performance ratio; the disadvantage is the double - refraction phenomenon.
3.CZ: Advantages are low price and a diamond - like appearance; disadvantages are easy to scratch and fog up.
4.Crystal / Rhinestones: Advantages are low cost and a variety of colors; disadvantages are fragility and poor luster durability.
Maintenance and Care
1.Clean with a soft brush and mild soapy water, store separately, and avoid contact with chemicals and high temperatures.
Industry Trends
1.Sustainability is favored, nano - coating technology is innovating, and the young generation pays more attention to design.
