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Cushion Buff Top Single Bevel Genuine Black Onyx With Hole - Otto Frei
Otto Frei

Cushion Buff Top Single Bevel Genuine Black Onyx With Hole

Part # 947-452 Out of Stock Weight <0.1 lb / <5 g
$7.50
Select Stone Size: 12mmx10mm
Volume pricing
Total qty Discount Per unit You save
1 – 2 – $7.50 –
3 – 4 5% off $7.12 $0.38
5 – 9 10% off $6.75 $0.75
10 + 12% off $6.60 $0.90
Add 2 more for 5% off, saves another $0.38 each.

Availability Sold out

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Description

Black Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of tiny quartz crystals not visible to the naked eye. Natural black chalcedony is exceptionally rare — virtually all black chalcedony on the market is grey chalcedony that has been chemically treated to achieve its characteristic deep, shiny black color. Black Onyx is the top-selling chalcedony in the jewelry market and has a rich history in Art Deco design. These cushion buff top, single bevel cabochons feature a drilled hole and uniform opaque black color, making them well-suited for pendants, earrings, and other fabricated jewelry applications.

Features

  • Genuine black onyx (dyed black chalcedony)
  • Cushion buff top with single bevel profile
  • Drilled hole for easy setting or stringing
  • Uniform opaque black color throughout
  • Historically popular in Art Deco jewelry styles
  • Clean with warm, soapy water — ultrasonic and steam cleaning generally safe

Specifications

Stone Type Black Onyx (Dyed Black Chalcedony)
Treatment Dyed
Shape Cushion Buff Top, Single Bevel
Feature Drilled hole
Transparency Opaque
Color Uniform black
Care Warm soapy water; ultrasonic and steam cleaning generally safe
Sold As Individual stone

Available Options

Part # Stone Size
947-452 12mm x 10mm
947-453 14mm x 12mm

Specifications

Brand
Otto Frei
Part #
947-452
Type
Cabochon
Dimensions
0.1 in x 0.1 in x 0.1 in
Stone Type
Black Onyx (Dyed Black Chalcedony)
Treatment
Dyed
Shape
Cushion Buff Top, Single Bevel
Feature
Drilled hole
Transparency
Opaque
Color
Uniform black
Care
Warm soapy water; ultrasonic and steam cleaning generally safe
Sold As
Individual stone
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

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