Opal Necklace & Earrings Set – 925 Sterling Silver, Rhodium Plated

SMUK is a Tokyo-based sustainable jewellery brand built on the principles of “Less trash, more marine life” and “Safe Wildlife.”

Our creations are primarily crafted from 925 sterling silver, beautifully finished with rhodium or 14K/18K gold plating, and we also offer solid 14K gold pieces.

Every design is made with care for metal-sensitive skin and features natural gemstones such as opal and aquamarine, adding a refined brilliance to everyday life.

• Due to the characteristics of the materials and the manufacturing process, slight variations in color, shape, or size may occur. We kindly ask for your understanding in advance.

• Products made with natural materials may have individual differences in patterns, colors, and inclusions. Product photos are for reference only, and slight variations may occur due to the nature of the materials and manufacturing process.

• We make every effort to ensure that the colors in the photos are as close to the actual product as possible; however, the appearance may vary depending on lighting conditions and your monitor settings.

※ Returns or exchanges cannot be accepted for the above reasons. In the unlikely event that the product is defective or damaged, we will respond in accordance with our Return & Refund Policy. Please make sure to review our [Return & Refund Policy] before placing your order.

 

 • All orders are shipped from Singapore (Headquarters).

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■ Delivery Time

Domestic・JAPAN

• 2 - 3 business days (Complimentary standard shipping on all orders).

 

​International・Expedited

(For all orders under JPY ¥30,000 a shipping fee of JPY ¥3,000 will be applied at the checkout).

•  Asian countries: 4 - 7 business days
• Rest of the World: 7 - 14  business days

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■ Estimated Delivery Date

- Orders placed before 10:00 am : Same-day shipping

- Orders placed After 10:00 am : Shipment on the following day

※ Excluding weekends and public holidays.

 

For more information, please visit :

https://smuk.jp/en/policies/shipping-policy

 

✦ Payment Methods

For immediate payment methods such as credit card, PayPal, PayPay, Apple Pay, and Google Pay, the payment will be confirmed at the time the order is completed.

✦ Payment Deadline

For instant payment methods such as credit cards, PayPal, Apple Pay, Google Pay, and PayPay：

Payment will be completed at the time of order confirmation, and shipment will be prepared accordingly.

For bank transfer and convenience store payments：

Please make the payment within 3 days from the order date.

Your order will be shipped after confirming your payment.

※ A payment fee of 220 yen will be charged for convenience store and Pay-Easy payments.

Pure Silver (925 Sterling Silver)

SMUK believes in the quiet power of nature.

That is why we choose to work with materials that embody authenticity, using 925 sterling silver as our main metal.

Just like natural gemstones, silver carries a gentle energy born from the earth.

Since ancient times, it has been cherished as a symbol of intuition, emotion, and protection, quietly accompanying people through their lives.

In recent years, many accessories have been made from stainless steel or brass coated to appear silver, but even if they look similar, the difference in material makes a significant impact on how they feel against the skin and how comfortably they can be worn over time.

At SMUK, we carefully select every element with sincerity, including the parts you cannot see, to create jewelry that feels natural, comfortable, and made to be worn for years to come.

For more details:

The Choice of Silver 925 — Jewelry that Lives with the Power of Nature

Silver is a beautiful metal, but it easily reacts with elements in the air, which can cause tarnishing or darkening over time.

To prevent this and to enhance its surface with an elegant platinum-like white shine, white gold plating (coating) is applied.

Pure silver has a Mohs hardness of only 2.5 to 3, meaning it’s relatively soft. By adding a surface coating, the jewelry becomes more resistant to scratches and daily wear.

At the same time, the coating helps prevent sulfur-based tarnishing, allowing the silver to maintain its bright and refined luster for longer.

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At SMUK, we use K14 white gold for our white gold plating,

with a coating thickness of 2 microns.

This ensures a long-lasting, luxurious finish suitable for everyday use.

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For more details, visit:
http://smuk.jp/en/pages/whysmuk

Rhodium is a rare and precious metal known for its brilliant shine and exceptional resistance to tarnish. When applied as a coating over silver, it enhances the jewelry’s brightness, protects it from discoloration and scratches, and helps maintain its beauty even with daily wear.

At SMUK, we carefully control the thickness and quality of our rhodium plating, offering a finish that meets the standards of high-end fine jewelry.

For more details, visit:
http://smuk.jp/en/pages/whysmuk

Gold Vermeil refers to a thick layer of high-purity gold plated over sterling silver (925 silver).

According to standards in the U.S. jewelry industry, vermeil must use gold of at least 10K purity and have a minimum thickness of 2.5 microns.

(Note: Definitions may vary by country. Learn more here:

https://smuk.jp/en/blogs/journal/gold-vermeil)

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SMUK’s Gold Vermeil

At SMUK, we use 18K gold for all our vermeil jewelry,

with a generous thickness of 3 microns for extra durability and brilliance.

☑ Shower Safe

☑ Swim Safe

☑ Perfect for Daily Wear

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Features of Gold Vermeil

Gold Vermeil is made using a careful and luxurious technique of bonding melted gold onto a sterling silver base.

This process requires great skill and time, making it a premium and sophisticated material.

Thanks to the solid weight of silver and the thick layer of gold,

our vermeil jewelry offers a rich, glamorous appearance that closely resembles solid gold —

without the solid gold price tag.

For more details, visit:
http://smuk.jp/en/pages/whysmuk

Please see below for the details :

・Handmade Pouch

・SMUK Gift Wrapping（¥100）

・SMUK Gift Box（¥500）