The "Adult Sebonstar Heart Key Lock Pendant" incorporates the design of Sebonstar's popular item, the "Heart Key."
The two motifs of a key and a lock are expressed in a charming design that is characteristic of Sebonstar .
This gold-colored version is made of silver plated with gold, creating a gorgeous look that perfectly matches the special "Heart Key" design.
The heart-fluttering "Heart Key" design is faithfully reproduced down to the smallest detail.
The lock design on the Vatican is decorated with stars, moons and ribbons, with a heart silhouette as the highlight.
The special jewelry case, inspired by the hexagonal packaging, is a gorgeous light pink.
Although the motif is small, you can feel the world of Sebonstar, which has been faithfully reproduced.
This silver-colored version features rhodium-plated silver, and its cool hue will elegantly adorn your chest.
The small moon and star motifs are meticulously reproduced, expressing the unique style of Sebon Star down to the smallest detail.
The key and lock are combined into one, adding a touch of adorable playfulness.
When viewed from the back, the beautiful jewel can be seen through the heart-shaped window.
This is a carefully crafted necklace that embodies the essence of Sebonstar.
<Silver model>
- bullion
- SV925
*Silver color is rhodium plated, gold color is gold plated.
- heart cut gemstone
- Choose from 5 types
1. Almandine Garnet
2. Peridot
3. Amethyst
4. Citrine
5. Blue topaz approx. 5mm x 5mm
- Side stones
- Diamond (H&C) diameter approx. 1.5mm x 1
- Price (tax included)
- ¥29,800
- Included chain size
- Approximately 40cm
- Motif size
- Approximately 22.0mm long, approximately 9.0mm wide
<Precious Model>
- bullion
- Pt950, K18YG, K18PG
- heart cut gemstone
- Choose from 5 types
1. Almandine Garnet
2. Peridot
3. Amethyst
4. Citrine
5. Blue topaz approx. 5mm x 5mm
- Side stones
- Diamond (H&C) diameter approx. 1.5mm x 1
- Price (tax included)
- ¥198,000
- Included chain size
- Approximately 40cm
- Motif size
- Approximately 22.0mm long, approximately 9.0mm wide
Take a look at the "key ring" that comes with Sebonstar's popular item, the Charmy Pact .
The world of Sebonstar is incorporated directly into the heart relief, and the diamonds and beautiful heart gemstones create a ring that gives it a special jewelry feel.
This gold-colored version is made of silver plated with gold. The rich shine envelops the sparkling heart-shaped gemstone.
The arms feature a gorgeous design incorporating the ribbon motif also used in the second edition, creating an antique and elegant cuteness.
The ring arm on the back resembles the end of a ribbon. The size can be adjusted. *It is a delicate piece. Please be careful when adjusting it yourself.
The stone base has a ribbon and star-shaped openwork pattern, making it a cute design even when viewed from the side.
The gorgeous heart relief and ribbon arms bring the world of Sebonstar to your fingertips.
This silver-colored version features rhodium-plated silver. The clean silver color makes colorful gemstones stand out.
The special jewelry case, inspired by the hexagonal packaging, is a refreshing mint green.
The ring arm on the back resembles the end of a ribbon and can be adjusted to fit your size. *This product is delicate. Please be careful when adjusting it yourself.
The stone setting features a ribbon and star-shaped openwork pattern, allowing light to enter and make the gemstone shine even more.
The hard shine of the silver adds a clean and beautiful touch to your hands, despite the gorgeous design.
<Silver model>
- bullion
- SV925
*Silver color is rhodium plated, gold color is gold plated.
- heart cut gemstone
- Choose from 5 types
1. Almandine Garnet
2. Peridot
3. Amethyst
4. Citrine
5. Blue topaz approx. 5mm x 5mm
- Price (tax included)
- ¥29,800
- Ring size
- S (about size 5 to 10) M (about size 11 to 16) L (about size 17 to 22)
LL (about size 23 to 26)
The ring is adjustable in size.
*Applying excessive force may result in damage, so please be careful when changing the size.
- Side stones
- Diamond (H&C) diameter approx. 1.0mm x 2, approx. 1.2mm x 2
- Motif size
- Approximately 9.3mm in height and 9.6mm in width (heart motif part)
<Precious Model>
- bullion
- Pt950, K18YG, K18PG
- heart cut gemstone
- Choose from 5 types
1. Almandine Garnet
2. Peridot
3. Amethyst
4. Citrine
5. Blue topaz approx. 5mm x 5mm
- Price (tax included)
- ￥198,000
- Ring size
- Choose from sizes 7 to 25 in 0.5 increments
*The back of the ring arm is designed to be closed.
- Side stones
- Diamond (H&C) diameter approx. 1.0mm x 2, approx. 1.2mm x 2
- Motif size
- Approximately 9.3mm in height and 9.6mm in width (heart motif part)
Special Sebonstar jewelry case
Sebonstar is known for its hexagonal packaging. We have created an elegant jewelry case that faithfully replicates the way it is displayed in the candy section, making it suitable for grown-up Sebonstars. The suede-like fabric is accented with the logo.
You can also store your favorite rings and pendants together.
<Color options>
Light pink: Heart key lock pendant Mint green: Charmy Pact ring
Buy one and get a free gift
Size: Approx. 13cm x 4.5cm
Special guarantee card
Don't forget to get some chocolate to make your heart dance with Sebonstar.
A special guarantee card will be included, modeled after chocolate, featuring hearts, jewels, stars and other motifs that will tickle the hearts of young girls.
The back side incorporates the packaging design that encases the chocolate, and the essence of Sebonstar is packed into every detail.
This item will be included with each purchase of a Sebonstar collaboration jewelry item.
Size: Approx. 86mm x 26mm
Special shopper
We have prepared special original shoppers that are perfect for carrying Sebonstar jewelry for adults.
When you purchase at the Caratz Store, one gift card will be included with each piece of jewelry purchased.
Size: Approx. 26mm x 65mm
*Please note that packaging methods may vary depending on the store.
This is the second release in the Charmy Premium model, featuring a royal blue sapphire, considered to be the most exquisite of all sapphires. It also features first-class side stones, including diamonds, ice blue diamonds, and Akoya baby pearls, and is available in a limited edition of just one piece.
The deep, vivid blue color is the hallmark of royal blue sapphire. The heart is adorned with the highest quality gemstones, including Akoya baby pearls and diamonds of the quality used in engagement rings.
An ice blue diamond is set in the center of the elegant ribbon motif. *The natural colorless diamonds have been treated to bring out their clear light blue brilliance.
The special jewelry case, which is modeled after the hexagonal packaging, is purple.
We have combined the distinctive Sebonstar design with the highest quality materials to create a one-of-a-kind piece of premium jewelry.
- Nakaishi
- Royal blue sapphire, approximately 5mm x 5mm
- Price (tax included)
- ¥1,580,000
- bullion
- Chain, ribbon, and heart edging: K18YG (yellow gold) Heart interior: Pt950
- Side stones
- Diamond (H&C)
Diameter: approx. 1.4mm x 2, approx. 1.2mm x 6, approx. 1mm x 7, approx. 0.9mm x 12
Ice blue diamond diameter approx. 2mm x 1
Akoya pearl baby pearl diameter approx. 2.4mm x 20
- weight
- Approximately 13.0g (including chain)
- Sales method
- Limited lottery sale of one item
- accessories
- Adjuster charm (K18 material), special Sebonstar jewelry case, special guarantee card, special shopper, special clear drink holder (Aurora design)
The adorable design of the adult Sebon Star Jewelry Pendant, which first appeared in 2024 , remains the same.
We have prepared a model in which the overall coloring is unified in a cool and luxurious silver color.
The product will be available for a limited time at Hakuhinkan TOY PARK Ginza Main Store, a long-established toy specialty store founded in 1899.
The classic heart motif, which is also used in the Sebonstar logo, is combined with a ribbon to create a design that appeals to the feminine heart. This model is unified in a cool and luxurious silver color.
Lavender quartz has a pale pinkish color. Its milky color creates a soft atmosphere.
Lavender tanzanite has a color close to violet, and its strong pleochroism gives it a different impression depending on the angle from which it is viewed.
Three diamonds complement the heart-cut gemstone.
Sebonstar jewelry, which is packed with attention to detail, will add a touch of glamour to your chest.
- bullion
- SV925 & Rhodium Plated
- heart cut gemstone
- 1. Lavender Quartz
2. Lavender Tanzanite, approximately 5mm x 5mm
- Price (tax included)
- 1. 29,800 yen
2. 39,800 yen
- Side stones
- Diamond (VS class equivalent, D to G color, H&C)
* For more details, click here
Approximately 1.5mm x 1 stone, approximately 1mm x 2 stones
- Included chain size
- Approximately 40cm
- Motif size
- Approximately 13.8mm long, 13.0mm wide
- accessories
- Special Sebonstar jewelry case,
Special guarantee card, special shopper
Sebonstar x KARATZ collaboration jewelry will be exhibited and sold for a limited time at the KARATZ pop-up store in Shinjuku Marui Annex .
We will also be exhibiting the Charmy Premium Model (limited to one piece) which uses royal blue sapphire and will be sold by lottery, so please come and visit us.
- Period: 11/21 (Fri) - 11/27 (Thu)
- Location: Shinjuku Marui Annex 1F
- Business hours: 11:00-20:00 *Last day until 17:30 *Open from 10:30 on Saturdays and Sundays only
- Contents: Exhibition and sale of Sebonstar x KARATZ collaborative jewelry
- *Only the silver model is available in stock (precious models are available on order).
*The Charmy Pact Ring is only available in silver M size (other sizes are available to order)
*Limited quantity, up to two per person (first come, first served)
*Stock will be sold in two batches on 11/21 (Fri) and 11/22 (Sat). If sold out, stock will be replenished the following morning.
Shinjuku Marui Annex exclusive special clear drink holder
- Period: 11/21 (Fri) - 11/27 (Thu)
- Location: Shinjuku Marui Annex 1F
- Business hours: 11:00-20:00 *Last day until 17:30 *Open from 10:30 on Saturdays and Sundays only
- *Limited number available. First come, first served.
* Also applies to those who have placed orders at the venue
Sebonstar Jewelry for Adults uses a variety of colorful gemstones, including those purchased directly from around the world by gemologists.
In order to faithfully reproduce the distinctive cut of Sebonstar, we had direct contact with skilled Indian craftsmen who are experts in handling gemstones, and after much trial and error, we arrived at a quality that satisfied us.
The diamonds used as side stones are carefully selected to be VS class equivalent, D to G color, H&C. VS class diamonds have good clarity and are barely visible with minute inclusions under 10x magnification, the magnification used by experts to grade diamonds.
Of the 23 grades, only those with a carefully selected color range from the highest D color (completely colorless and transparent) to the fourth grade G color (near colorless, with a yellowish tinge that is difficult to detect with the naked eye).
Additionally, H&C (Hearts & Cupid) is a design where the reflection of light reveals the shape of a heart and an arrow within the diamond. This design is packed with thrilling attention to detail, even in the details that are difficult to notice at first glance.
These gemstones are transformed into jewelry by skilled artisans with advanced techniques, and their skills, honed through years of experience, have made this collaboration a reality.
Enjoy the authentic jewelry that only KARATZ, a specialty jewelry store, can provide.
Sebonstar for adults was created to commemorate the 45th anniversary of Sebonstar .
The first jewelry piece uses a heart-cut gemstone, which was voted number one by approximately 12,800 people .
We have prepared pendants and rings with the Sebonstar logo as a motif .
We offer a premium Charmy series that uses round-cut gemstones .
The design incorporates the Chamy Pact motif with the Sebonstar logo.
We have prepared an elegant and gorgeous pendant .
*The resale dates for the first and second series items have not yet been decided.
We will announce on KARATZ's official social media accounts when the product is resold.
Kabaya Foods' candy toys have been a best-seller since their release in 1979.
The distinctive, vertically long hexagonal box contains original pendant accessories and chocolates (as of 2024), and its cute design and wide range of colors have earned it the nickname "the jewel of the candy section."
It will celebrate its 45th anniversary in 2024.
This product has long been loved not only by girls who love glitter, but also by adult women.
Since its founding in 2017, Carats has been a company that continues to provide information about gemstones, with the hopes of "helping many people acquire correct knowledge about gemstones" and "being a place where anyone can feel free to ask questions about gemstones."
In addition to publishing the book "Gemstone Encyclopedia," the company also operates "KARATZ Gem Magazine" ( https://karatz.jp/ ), which is one of the largest gemstone information media in Japan and is used by many people (approximately 150,000 monthly visitors).
In addition, the jewelry specialty online store, Karatz STORE ( https://store.karatz.jp/ ), sells a wide variety of gemstones in a wide range of prices sourced from all over the world.
With the desire to encourage children in particular to become familiar with gemstones from an early age, we hold gemstone classes for children and their parents at elementary schools and commercial facilities, and also sell gemstone polishing sets that parents and children can try together, as well as gemstone playing cards that allow children to learn while they play.
The company is also well-known for the wide variety of gemstones it handles, and the president himself travels to various parts of the world, including Sri Lanka and Thailand, to purchase gemstones directly from the local area.
Regarding cuts that bring out the beauty of gemstones, we partner with polishing artisans both in Japan and overseas, and sell special cuts and original cuts that are only available at Caratz.
We purchase hundreds of thousands of gemstones each year, and offer a lineup that will satisfy a wide range of customers, from beginners experiencing gemstones for the first time to collectors.
We also create custom-made jewelry using beautiful gemstones sourced from around the world. We utilize the high technical skills and craftsmanship of our skilled Japanese artisans, who have decades of experience in jewelry processing technology, to create and deliver any design you desire.
