Titanium (anodized) — color comes from an oxide layer (not paint/dye). Lightweight, strong, hypoallergenic and nickel-free. Available in matte, brushed, or polished finishes; various textures (e.g., hammered, satin).

Zirconium — heat-treated surface forms a deep charcoal/black oxide. Durable, skin-friendly, nickel-free. Works well for subtle contrast lines and dark accents.

Mokume (copper-based) — layered copper alloys (typically copper, brass, bronze) forged and patterned to reveal woodgrain-like lines. Warm tones that can gently patinate (darken) over time; each pattern is unique.

Damascus (stainless only) — layered stainless steels etched to show a flowing pattern. Corrosion-resistant and lower maintenance than carbon damascus; suitable for daily wear.

Copper, Bronze & Brass — warm, characterful metals that naturally develop patina. Can be kept bright with simple care or allowed to age; minor skin coloration is possible for some wearers (details in Care).

Finishes & textures — matte, brushed, polished; select textures by piece. I also combine metals for contrast where design allows.

Allergy note — titanium and zirconium are hypoallergenic and nickel-free; copper-based alloys are generally skin-safe but can patinate in contact with skin and environment.

Clean with warm water + mild soap; dry with a soft microfiber cloth.

Avoid abrasives (scouring powders, rough pads), bleach/chlorine, strong acids/alkalis.

After pools/sea or cleaning chemicals, rinse and dry.

Store pieces separately (pouch/box) to reduce friction and color wear.

If a piece has inlays/adhesives, avoid ultrasonic cleaners and solvents.

The color is an oxide film (not paint). It’s hard and corrosion-resistant, but can wear from constant rubbing (stacked rings, gritty dust, pockets with keys).

To prolong the finish: avoid abrasive polishing, minimize friction (remove for gym/manual work), keep clean and dry, store singly.

Light dulling: wash, then gently buff with a clean soft cloth (no polishing pastes).

I offer refinishing/re-anodizing if you ever want the color refreshed.

These naturally develop a warm patina over time; moisture, salt, lotions speed this.

To keep brighter: wash and dry after wear; use a treated jewelry polishing cloth lightly; store dry.

Temporary skin coloration (green/tan) is normal and harmless—wash with soap; keeping skin and piece dry reduces it.

Best accuracy: use a proper ring sizer at a jeweler or a calibrated metal ring set. Avoid paper/string or printable charts—they’re unreliable.

How to measure: do it at the end of the day with warm hands; the ring should pass the knuckle with a little twist and sit snug (not tight).

Fit types: comfort-fit (rounded inside) can feel slightly looser than flat-inside at the same size.

Wide bands contact more skin and feel tighter than narrow ones.

Use a wide-band sizer (8–10 mm sample) if possible.

If you only have a narrow sizer (2–3 mm): as a rule of thumb choose ~½ size up for 9–10 mm bands and ~½–¾ size up for 11–12+ mm bands (tolerance varies by hand/knuckle).

If you’re between sizes, most people prefer the larger size for wide, flat-inside bands.

Resizing depends on design and inlays; some pieces can’t be adjusted or have limits—ask before ordering changes.

Finger size can fluctuate ~¼–½ size with temperature, salt, exercise, or time of day; measuring twice on different days is ideal.

Coverage: manufacturing defects in materials/workmanship for 3 months from delivery.

Not covered: normal wear and tear; anodized color wearing from friction; natural patina on copper/bronze/brass; scratches, dents, deformation; chemical/thermal damage; loss or theft.

Service: repairs, refinishing, re-anodizing, and polishing are available case-by-case (quoted before work).

How to request: contact via Etsy Messages (order number + short description + clear photos). I’ll confirm options, any costs, and timing.

Typical timeline: ~1–2 weeks in studio plus shipping.

Shipping: use secure packaging; shipping/insurance arrangements are confirmed per case. International service is welcome (buyer handles any customs paperwork).

CrystalStudioStoreUS — New Work — current designs, mostly titanium, zirconium, mokume, and stainless damascus; updated regularly; custom sizing available.

CrystalStudioStore — Archive — earlier collections from previous years (including copper/brass/bronze and electroformed crystal pieces); many are limited or discontinued.