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Adjustable Ring Sizer | US and CA Sizes | Blackbird and Sage

Adjustable Ring Sizer | US and CA Sizes | Blackbird and Sage

14 total reviews

Regular price $8.00 USD
Regular price Sale price $8.00 USD
Sale Sold out
Shipping calculated at checkout.

A simple, reusable adjustable ring sizer calibrated in US and Canadian half and full sizes. Slip it on, adjust the arrow to your fit, and read your size clearly. Lightweight and flexible, it travels easily in a jewelry kit or sits ready on your dresser.

Use it before ordering any made-to-order ring from Blackbird and Sage to make sure you get the right size the first time. If you are between sizes, size up for comfort.

Specifications

  • Material: Lightweight durable plastic with smooth edges.
  • Sizes: US and CA full and half sizes.
  • Reusable and flexible.
  • Ships from Santa Fe, New Mexico.

Not sure how to measure?

How to measure your ring size at home

Questions about sizing? Email hello@blackbirdsagestudio.com and I will help you find your fit.

Shipping

  • Ships within 1 to 2 business days.
  • USPS First Class with tracking.
  • Small batch handcrafted in Santa Fe, NM
  • Shipping 1 - 3 business days
  • Worldwide shipping
View full details

Product Details

About Electroforming

Electroforming is an ancient technique reimagined for modern jewelry.
Copper molecules bond to each stone over several hours, creating organic textures and secure settings. Learn more about our process.

Each piece is electroformed in pure copper, a process that uses electricity to slowly grow metal over organic forms, stone, or wax-carved bases.
This ancient-meets-modern technique creates natural textures and one-of-a-kind variations — no two pieces will ever be the same.
All pieces are nickel-free, can be sealed for daily wear, and finished by hand in our Santa Fe studio.

For centuries, copper has been worn as a grounding element — believed to balance energy, support circulation, and keep the wearer anchored in presence. It reminds us of our connection to the earth and our ability to return to stillness.

Lead Times & Shipping

Ready To Ship

  • 1 - 2 Business Days

Handmade to Order

  • EARRINGS & NECKLACES: 2 - 3 Business Days
  • RINGS: 3 Business Days
  • BRACELETS: 5 - 7 Business Days

Materials & Metals

Electroformed copper, sterling silver, bronze, and brass. Nickel-free ear wires.

Care & Wear

Copper will naturally develop a patina over time, a mark of age, energy, and individuality. To restore brightness, polish gently with a soft cloth or a simple lemon-and-salt paste. To preserve its aged character, simply wipe clean and let the color deepen with wear.

With a little mindful care, your jewelry will stay beautiful for years to come:

  • Remove before showering, swimming, or sleeping.
  • Store in a dry pouch or jewelry box to slow natural patina.
  • Wipe metals gently with a soft jewelry cloth after each wear.
  • Avoid contact with perfumes, lotions, and hair products.
  • Crystals are natural and can be delicate—handle with care to avoid chips or cracks.
  • Copper and brass will naturally darken over time. If you prefer a brighter finish, polish lightly with a jewelry cloth.
  • For extra protection, select our lacquer option at checkout to reduce tarnish and minimize skin reactions.

Each piece is handcrafted with raw crystals and natural metals—organic changes over time add to its one-of-a-kind beauty.

Copper Protection

Embrace the Patina

Some collectors love the rich, aged look that copper develops over time. This natural patina tells a story—of adventures taken, energies absorbed, and the passage of time. If you resonate with that earthy, vintage look, feel free to let your copper evolve organically.

Why add lacquer?

  • Slows the natural darkening (patina) of copper
  • Minimizes the chance of skin reactions
  • Keeps copper looking brighter for longer
  • Protects while preserving the earthy character of your jewelry

Details:

  • Optional upgrade available for $5
  • Applied directly to your copper ring, necklace, earrings, cuff, or bracelet before shipping
  • Clear finish — no change to the look or feel of your piece

Crystal properties are based on traditional beliefs and are not intended to replace medical advice