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Raley Design Studios

Calico Silver Lace Onyx, 15.60 cts

Calico Silver Lace Onyx, 15.60 cts

Regular price $5.00
Regular price $16.00 Sale price $5.00
Sale Sold out
Shipping calculated at checkout.

Bright white and cream colors interspersed with delicate brown and black dendrites. Polished to a vitreous (shiny) luster on the dome and sides. Flat, lightly backed with J-B Weld steel epoxy for stability; beveled bottom edge for ease of setting.  You will receive the exact gemstone shown in photos.

Weight: 15.60 carats
Length: 23.91 mm
Width: 17.80 mm
Height: 4.80 mm

Trade Name(s): (Calico) Silver Lace Onyx
Origin: Calico Mountains, California, USA
Enhancement(s): ASBL (backed)

American Gem Trade Association Gemstone Enhancement Codes

Enhancement: Any treatment process other than cutting and polishing that improves the appearance (color/clarity/phenomena), durability, or availability of a gemstone.

(ASBL) Assembled 
Products made of multiple layers or combinations of manufactured and/or natural material fused, bonded or otherwise joined together to

increase stability and/or imitate the appearance of a natural gemstone, create a unique design or generate unusual color combinations.

NOTE: “ASBL” coded stones require special care! Avoid household chemicals, cosmetics, abrasives, and sudden shocks.

Care Instructions


  • Take care to protect the gemstone when setting.
  • Avoid contact with abrasive materials, including polishes.  We have taken great care to bring out the brightest shine possible; using another abrasive may dull your gemstone's finished polish.
  • Avoid acids that could harm your gemstone, such as pickle.
  • Pearls should never be exposed to abrasives or chemicals.
  • Store gemstones in the pouch provided, or in a soft lined container away from other materials that may scratch or break gemstones; this includes other gemstones!


  • It's best to clean most gemstones with warm water and a mild dish soap.
  • Designate a soft toothbrush to use for cleaning.
  • Most gemstones should not be placed in an ultrasonic cleaner or in any jewelry cleaner containing chemicals.  The only gemstones that are generally safe in strong jewelry cleaners are strictly sapphires or diamonds.


Items ship within 1-2 business days, excluding U.S. holidays.

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  • Questions?

    If you have any questions on the care or cleaning of your gemstone(s) purchased from us, please send an email to  We are happy to provide any additional information on your piece.