18g Niobium Yin with Opal — Custom Made — Price Per 1

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This custom item is not made until ordered. This item ships separately from your order; please allow on average 1–2 weeks for production before your item is shipped.
  • 2 + for $19.49 each and save 7%
  • 10 + for $19.49 each and save 7%

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More Information
SKU Custom-757-UB
Weight 0.010000
Brand Unbreakable
Material Niobium

18g Handmade Niobium Yin with Opal

This beautifully design 18g Niobium Yin with Opal is delicate addition to your piercing. The Yin is handmade and hand polish by our on-staff jeweler for a unique style with a lustrous shine! This ring is perfect for daith piercings and other piercings as well, be creative and use your imagination. You can create many color combinations with a wide selection of opal and niobium colors. And you can choose either for the left ear or right ear. The Niobium Yin is made with high quality niobium for a extremely smooth finish.

Please Note: The pattern on the Black & Oil Slick, Black & Gold Colored, and Black & Rose Gold Colored Anodizations are random.

  • Gauge: 18g (1mm)
  • Material: Niobium
  • Diameter: 10mm (3/8"), 11mm (7/16") or 13mm (1/2")
  • Opal: Synthetically Made
  • Opal Size: 4mm
  • Price Per 1
Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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