素材
Materials
Each material has its own color, feel,
and aging characteristics.
On this page, you can learn about
their features and how to care for them.
Choose the one that best fits your style
and lifestyle.
Made of 92.5% silver with 7.5% other metals.
The remaining 7.5% is mainly copper.
Less likely to cause allergies and resistant to tarnish.
Features a bright, elegant shine unique to silver.
Silver925
Sterling Silver
Features of Silver 925
Silver 925 follows a global standard,
but its composition can vary by country.
You may notice that some rings tarnish
while others do not.
This is because some alloys include
metals other than silver and copper,
or may have protective coatings.
Our Silver 925 is left uncoated
to preserve its natural beauty.
As a result, it may react differently
depending on environment and daily wear.
It is also sensitive to sulfur,
so please take care around hot springs.
To create a warm pink tone while retaining
the shine of silver, the silver content is reduced
and blended with metals such as copper,
gold, and palladium in balanced proportions.
A rare material with limited availability,
it blends naturally with the skin and suits all genders.
Sakura Silver
Pink Silver
Features of Sakura Pink Silver
Sakura Pink Silver is an alloy that creates
a soft pink tone by blending metals
with silver.
Compared to standard Silver 925, it contains
higher amounts of copper, gold, and palladium.
However, copper reacts easily with air and sweat,
making it more prone to tarnishing.
Some brands apply protective coatings
to reduce discoloration.
At our shop, we leave it uncoated
to preserve its natural color and texture.
As a result, changes may vary depending on use,
environment, and individual conditions.
It is also sensitive to sulfur,
so please remove it when bathing or visiting hot springs.
Brass is an alloy mainly composed
of copper and zinc, offering an affordable
and accessible material.
It features a warm, gold-like tone
and is widely used in coins, accessories,
musical instruments, and interiors.
It is also prone to tarnishing.
Brass
Copper Alloy
Features of Brass
Brass is a metal made mainly of copper
and zinc, commonly used in items such as
Japanese 5-yen coins.
It may react with sweat and moisture,
causing a greenish patina to appear.
It may not be suitable for those
with metal allergies.
At our shop, brass pieces are left uncoated
to preserve their natural texture and aging.
As a result, changes in color may occur
over time depending on use, environment,
skin oils, humidity, and sulfur exposure.
K18 Yellow Gold is an alloy of silver and copper,
designed for strength and durability.
It has a warm, rich golden tone that suits all skin types.
Resistant to tarnish, it keeps its beauty over time.
K18
Yellow Gold
Features of K18 Gold
K18 contains a high percentage of pure gold,
making it more resistant to tarnishing
than silver or brass.
However, the silver and copper it contains
may react with air, sweat, or skin oils,
causing slight dullness or color changes.
Tarnishing is more likely in environments
such as hot springs, seawater,
or during warmer seasons.
Depending on conditions, it may appear
slightly reddish or darker,
which is a natural reaction of the metal.
Care Precautions
Care methods may vary depending on the material
and ring design, so proper care is important.
For stubborn stains or specially finished rings,
we recommend leaving care to professionals.
Rings made at our shop include
complimentary repolishing aftercare.
This service is available free of charge,
as many times as you like after purchase.
Care
– Daily Care –
For All Materials
① Always wipe dry when putting on or removing.
• Use a glasses cloth or microfiber.
• Be sure to wipe the inside of the ring as well.
②Always dry it if it gets wet.
• Use a glasses cloth or microfiber.
• Don’t forget to wipe the inside of the ring.
※ Brass
As this material reacts easily to moisture and sweat,
please avoid contact with water and perspiration when possible.
※ K18
As this material is resistant to water and sweat,
simply wiping off oils helps maintain its shine.
③Remove before hot springs, pools, or the sea.
Hot springs can turn it black instantly.
Pools and seawater may cause damage.
※ Brass
We recommend removing it when
washing hands or bathing.
※ K18
Generally safe for pools and the sea.
Hot springs are also low risk, but we recommend removing it.
④Avoid Cosmetics
Hand cream, sunscreen, perfume, etc.
→Put your ring on after it has dried.
※ K18
Generally safe to touch these items.
– When Your Ring Looks Dull –
◉Wipe with a soft cloth (daily OK)
For All Materials
• Use a glasses cloth or microfiber.
• Wipe the inside as well.
◉Mild detergent + lukewarm water (daily OK)
Silver925
Brass
1. Add a drop of mild detergent
2. Soak for 5–10 minutes
3. Gently rub with your fingers
4. Rinse thoroughly with water
5. Dry with a soft cloth
1. Add a drop of mild detergent
2. Apply the solution or
dip the ring briefly
3. Gently rub with your fingers
4. Rinse thoroughly with water
5. Dry with a soft cloth
※ For textured surfaces, use a soft brush gently.
◉Polishing cloth (not for daily use)
Sakura Silver Silver925 →Silver cloth
Brass →Copper & Brass polishing cloth
※Not suitable for Stardust or matte finishes
◉Vinegar / lemon (not daily)
Brass
1. Mix vinegar or lemon juice with water
2. Soak the ring for 2–5 minutes
3. Rinse well once the tarnish is gone
4. Dry completely with a soft cloth
– When Your Ring Turns Black –
◉Baking soda
1. Mix baking soda and water (2:1) to form a paste
2. Gently rub to remove tarnish
3. Rinse well and dry completely
Sakura Silver Silver925 Brass
※For textured surfaces, gently brush the pattern with a soft brush
※ Sakura Silver Use this method as a last resort to remove black tarnish.
◉Jewelry cleaner
Sakura Silver Silver925 →Liquid cleaner
Brass →Metal polish (e.g., Pikal)
※Some silver cleaners may be not suitable for Sakura Silver , so please take care.
◉Baking soda + foil + hot water
Silver925
1. Line a heatproof container with foiland place the ring on top
2. Sprinkle baking soda to cover the ring
3. Pour boiling water until fully submerged
4. Wait a few minutes, then rinse and dry well
◉Vinegar / lemon + salt
Brass
1. Mix vinegar or lemon juice with a little salt
2. Apply with a cloth to the darkened area
3. Gently rub for a few minutes
4. Rinse immediately and dry well
– Stardust Care –
• Wipe dry with a soft cloth (microfiber, etc.)
• Rinse briefly with lukewarm water, then dry
• Use a small amount of mild detergent and gently clean
Rinse well and dry immediately
Do not use polishing cloths, baking soda, or brushes
– If Patina Appears on Brass –