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  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
  • 7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making
7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making

7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making

  • 100 - 999 Pieces
    $1
  • >= 1000 Pieces
    $0.50

Customization:

OEM, ODM（Min.Order: 100 pieces）
View product details

7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Jewelry Crafting: Designed for creating eye-catching jewelry items such as necklaces, rings, and DIY accessories, leveraging the vibrant blue hues and iridescent play of color characteristic of synthetic opals.
  • Versatile Gemstone Application: Machine-cut cabochon stones with smooth, flat bottoms ensure secure setting in various jewelry designs, optimized for both aesthetic appeal and durability.

Key features

  • 1. Material Technology

    • With lab-created synthetic opal material, you can achieve natural-like opalescence at an affordable price*. The chemical-treated silica structure ensures vibrant color play (blue, green, orange, and pink hues) while maintaining durability for long-lasting jewelry use.

  • 2. Interactive Design

    • With a precision round brilliant cut and smooth cabochon shape, you can maximize light reflection and color spectrum visibility across multiple angles. The flat bottom design simplifies secure setting in rings, pendants, or earrings.

  • 3. Performance Parameters

    • With a customizable size range (3mm–22mm) and hole diameters (3mm–15mm), you can adapt these stones to diverse jewelry projects—from delicate necklaces to bold statement rings.

  • 4. Scenario Solutions

    • With multi-angle light-refracting properties, you can create jewelry that adapts seamlessly to any lighting environment (e.g., dim candlelight or bright sunlight). Ideal for DIYers and commercial jewelers seeking dynamic, eye-catching pieces.

  • 5. Certification Standards

    • With heat-treated and polished synthetic opals, you can ensure safety and quality compliance for jewelry applications. Lab-created materials avoid ethical concerns tied to natural gemstone mining.

Product details

7MM Round Smooth Flat Bottom Machine Cut Cheap Prices Good Polishing Synthetic Blue Opal Cabochon Stone for Jewelry Making

These synthetic blue opal cabochons feature vibrant play-of-color effects in shades of blue, green, and hints of orange/pink, ideal for jewelry making. Machine-cut with smooth, round shapes and polished surfaces, they offer consistent quality and affordability for DIY projects or professional designs.

Technical specifications

FeatureSpecificationBenefit
MaterialSynthetic (lab-created) opal with hydrated silica structureAffordable, consistent quality, and enhanced durability compared to natural opals
ColorVibrant blue with multicolored iridescenceEye-catching light-refractive properties for dynamic jewelry designs
Cut & ShapeRound cabochon with smooth, flat bottomMaximizes play-of-color and suits settings like rings, pendants, and earrings
Size Range3mm–22mm (including 7mm, 10mm, 14mm, 20mm, etc.)Versatile for necklaces, bracelets, or focal points in jewelry
Hole DiameterCustomizable (3mm–15mm)Adaptable for threading with wires, chains, or settings
TreatmentLab-created, polished, and heat-treatedEnhanced clarity and color stability

Customization guide

Adjustable parameters:

  • Size: Select from 3mm to 22mm to match jewelry type (e.g., 7mm for rings, 14–20mm for pendants).
  • Hole Diameter: Optimize for specific materials (e.g., 3mm for thin wires, 8–10mm for chunky chains).
  • Color Saturation: Request deeper blue hues for high-impact designs.

Get inspired

With their iridescent blue hues and smooth cabochon cuts, these opals add a mesmerizing touch to jewelry. For example:

  • With 7mm cabochons, you can craft delicate earrings that catch light from every angle.
  • With 20mm stones, create bold pendants that showcase their vibrant color shifts.
  • Pair translucent opals with silver settings to enhance their light-refractive properties.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Size Range3mm–12mm5mm–20mm7mm–22mm
Color IntensityStandard saturationEnhanced vibrancyUltra-saturated hues
Hole CustomizationPre-drilled onlyAdjustable diameterDiameter + shape
PackagingBulkAssorted sizesCurated sets

Supplier's note

  1. Technical Breakthroughs:

    • Lab-Created Consistency: Synthetic opals eliminate natural inclusions, ensuring uniform color and durability.
    • Wider Size Range: The Pro Model’s 7mm–22mm options cater to both intricate and statement jewelry.
    • Custom Hole Shapes: Advanced/Pro Models allow oval or square holes for unique settings.

  2. Version Selection Guide:

    • Base Model: Ideal for DIYers needing affordable, pre-drilled stones for simple designs.
    • Advanced Model: Best for artisans requiring adjustable hole diameters and mid-range sizes.
    • Pro Model: Perfect for professionals designing high-end jewelry, with premium hues and large sizes. For instance, the Pro’s 22mm cabochons paired with silver chains create dramatic necklaces that reflect light across all angles.

Frequently asked questions

  • Which size of synthetic blue opal cabochons is best for DIY necklace making?

  • How do I clean synthetic blue opal cabochons to maintain their polish?

  • What’s the difference between synthetic and natural opal cabochons for jewelry?

  • Can these synthetic opal cabochons be used in ring settings?

  • Why do these synthetic blue opals display color changes under light?

  • Are these synthetic opals treated safely for jewelry?

  • How do synthetic opals compare to cubic zirconia for earrings?

  • Can I get custom hole diameters for these opal cabochons?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material AuthenticityHigh-end jewelry, luxury marketsIndustry Standard: Natural opal (ASTM C770 organic structure)Unique natural formation; higher resale value ▲▲▲Limited availability; prone to cracking (hygroscopic nature)
DIY jewelry, cost-sensitive projectsOur Base: Synthetic opal (ISO 17657 certified lab-created)Affordable; consistent quality ▲Less rare than natural; may require humidity control
Premium custom jewelryOur Advanced: Enhanced synthetic opal (ASTM E1359 stability certification)Superior durability; color retention ▲▲Higher cost compared to Base tier
Cut QualityVintage or artisanal designsIndustry Standard: Hand-cut (ISO 17657 Grade C precision)Artisanal appeal; customizable shapes ▲Inconsistent light reflection; time-intensive production
Mass-produced jewelryOur Base: Machine-cut "Good" (ISO 17657 Grade B)Uniform facets; cost-effective ▲▲Slightly muted play-of-color compared to hand-cut
Luxury or showcase piecesOur Advanced: Machine-cut "Excellent" (ISO 17657 Grade A)Maximized light dispersion (▲▲▲); mirror-like polishRequires specialized tools for setting
Color ConsistencyBold statement piecesIndustry Standard: Natural opal (variable hues)Unique color patterns; collectible appeal ▲Unpredictable color distribution; may fade over time
Modern minimalist designsOur Base: Synthetic blue (CIE 1931 ΔE < 3)Uniform hue for cohesive designs ▲▲Limited to predefined color options
High-end fashion jewelryOur Advanced: Enhanced synthetic blue (CIE ΔE < 1.5)Vibrant, saturated color (▲▲▲); UV-resistant ▲▲▲Requires controlled lighting to avoid color distortion
Size RangeCustom bridal jewelryIndustry Standard: Natural opal (limited to raw stone sizes)Unique, irregular sizes ▲Scarcity of large sizes; inconsistent proportions
Wholesale productionOur Base: Standard sizes (3mm–22mm increments)Mass-producible; fits most settings ▲▲Limited customization flexibility
Bespoke designer piecesOur Advanced: Custom sizes (±0.1mm tolerance)Precision for intricate designs (▲▲▲); compatible with CAD/CAM toolsLonger lead times; premium pricing
Treatment StandardsEthical/responsible sourcingIndustry Standard: Untreated natural opal"Natural" marketing appeal ▲Higher risk of cracking; less durable
Everyday wearOur Base: Polished + heat-treated (ASTM C32)Durable for daily use ▲▲Surface may develop micro-cracks over years
High-stress environmentsOur Advanced: Multi-stage polishing (ASTM C32 + ISO 17657)Scratch-resistant coating (▲▲▲); 10-year durability warrantyRequires professional maintenance
Application SuitabilityRetro or cultural motifsIndustry Standard: Natural opal in heirloom piecesHeritage value; timeless designs ▲Fragile for active lifestyles
DIY hobbyist projectsOur Base: Cabochon for simple settingsEasy to set in pendants/rings ▲▲Not recommended for complex prong settings
Contemporary art jewelryOur Advanced: Smooth flat bottom for complex settingsVersatile for bezel/tension settings (▲▲▲); ideal for 3D-printed designsRequires advanced jewelry-making skills

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