WAVY GROTTO RING
7-day returns
About This Piece
Evoking the fluid, hollowed contours of ocean grottos sculpted by the tide, the Wavy Grotto Ring captures organic undulation in solid metal.
Spanning approximately 30 mm along its curved silhouette, the band bends and dips across the finger to frame negative space with effortless grace. Its sculptural yet understated line balances architectural strength with delicate fluidity, making it an arresting standalone accent or a distinctive anchor in a layered stack.
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Craftsmanship Note: Handcrafted from initial design through final polish. Minor surface variations or fine micro-scratches reflect the bespoke handmade process and individuality of each piece. Every order undergoes meticulous quality inspection prior to shipping.
Material & Care
Material Options
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Unplated 925 Sterling Silver
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14K Gold Plated 925 Sterling Silver
Care Instructions
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Storage: Store individually in an airtight pouch or soft-lined jewelry box when not in use to maintain form and minimize air exposure.
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Silver Care: Sterling silver naturally oxidizes over time when exposed to oxygen and moisture. Restore its original brilliance using a dedicated silver polishing cloth or specialized cleaning bath.
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Plated Finish Care: Avoid direct contact with water, sweat, cosmetic sprays, and perfumes. If exposed to moisture, pat dry immediately with a clean, soft microfiber cloth. Re-plating is recommended over time if natural fading occurs.
Size & Fit
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Curve Dimension: Approx. 30 mm in curved span
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Size Availability: KR Size 5 to Size 18
| Size (KR) | Finger Circumference | US Equivalent |
| Size 5 | 48 mm | US 4 |
| Size 6 | 49 mm | US 4.5 |
| Size 7 | 50 mm | US 5 |
| Size 8 | 51 mm | US 5.5 |
| Size 9 | 52 mm | US 6 |
| Size 10 | 53 mm | US 6.5 |
| Size 11 | 54 mm | US 7 |
| Size 12 | 55 mm | US 7.25 – 7.5 |
| Size 13 | 56 mm | US 7.5 – 7.75 |
| Size 14 | 57 mm | US 8 |
| Size 15 | 58 mm | US 8.5 |
| Size 16 | 59 mm | US 8.75 – 9 |
| Size 17 | 60 mm | US 9 – 9.25 |
| Size 18 | 61 mm | US 9.5 |
Shipping & Delivery
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Processing & Lead Time: This piece is made-to-order / fulfilled through our regular production schedule. Please allow 2–3 weeks for order fulfillment and delivery. All orders are carefully processed and shipped from Seoul.
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Tracking details will be shared via email as soon as your dispatch is underway.
shipping & returns
We currently ship within the United States. Delivery usually takes 7–14 business days. Pieces marked Made to order are made after you order and can take up to 30 days to arrive. Shipping is calculated at checkout.
Returns are accepted within 7 days of delivery for unworn pieces with tags and original packaging. To start a return, sign in to your account, open your order and select Request return. Questions: hello [at] posmoa [dot] nyc.
Brand story
SENSE OPTIC
Drawing inspiration from ancient labyrinths and the textures of caves and stone, SENSE OPTIC translates organic forms into sculptural body ornaments. Its genderless designs explore the relationship between the human body and the objects that adorn it.
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