Exclusive 18K Lime Gold Material

限定 18K ライムゴールド素材

Unique to MITUBACI, Lime Gold offers a subtle, understated elegance with a distinctive glow. Characterized by its greenish tint, it leaves a brilliant, individualistic impression — perfect for creating timeless pieces that speak softly yet powerfully.

WIDTH OPTION & PRICE

The prices listed below are per ring and include a 3-hour crafting session.

18K Lime Gold:

  • 2.0mm — $1,400
  • 2.5mm — $1,750
  • 3.0mm — $2,000
  • 3.5mm — $2,300
  • 4.0mm — $2,700*

Note:

  • Size 21 – 24.5: Additional 10% on top of base price
  • Size 25 – 30.5: Additional 15% on top of base price

DUO TONE WEDDING RING MAKING

デュオトーンの結婚指輪

A wedding band that lets you enjoy the best of both worlds — a seamless blend of two metals and colours. If you’re torn between classic platinum and 18K gold, our duo-tone rings are the perfect choice for those who appreciate contrast and harmony. This design beautifully symbolizes the unity of two individuals coming together as one.

During our special Artisan Week, Lala-san will be on-site to personally guide you through crafting your duo-tone wedding rings. Explore a range of precious metals — from Platinum to 18K Gold in Champagne, Rose, or Yellow hues.

Duo-Tone Rings

WIDTH OPTION & PRICE

The prices listed below are per ring and include a 3-hour crafting session.

+$250 on top of base price

Note:

  • Duo-toned rings are limited to plain bands only and are not eligible for special designs such as twists, wavy, or tiara styles.
  • Size 21 – 24.5: Additional 10% on top of base price
  • Size 25 – 30.5: Additional 15% on top of base price

Silver signet rings

シルバー・シグネットリング

Signet jewellery, especially signet rings, featuring a plate as its focal point, is perfect for custom engravings and textures. 

Silver Signet Ring

WIDTH OPTION & PRICE

The prices listed below are per ring and include a 3-hour crafting session.

~1.7mm – $180

As part of this exclusive event, participants will enjoy:

  • A hands-on workshop to craft your own Signet Ring in silver
  • Personalized guidance from our in-house artisans
  • Special event pricing and complimentary engraving for your finished ring

Join us for a workshop to create a ring adorned with textures, engravings, and stone settings that resonate with you in every precious way!

ON-SITE STONE SETTING SERVICE

メレーストーンセッティング

Skip the usual 6-8 weeks down to one day to a week’s lead time (subject to studio’s schedule and availability) and experience the craftsmanship firsthand as our artisans showcase the intricate art of melee stone setting. Plus, enjoy $50 off your first stone setting, available for both new and returning customers. 

Nov 2025 Artisan Event Web Images

Width option & price

The price of stone setting during the event is as follows:

Secret Stone (1.3mm)  +$100 ea — $50 off the first stone setting per item
Outer Stone* (1.5mm) +$150 ea — $50 off the first stone setting per item

Note:

  • Outer stone is limited to: Diamond, Ruby and Sapphires
  • Please note that the available stone setting styles are limited to 4-Prong and Flush settings only.

For interested customers who have an existing ring and would like to add stones, please contact us to book a stone setting appointment.

Terms & Condition

利用規約

Nov 2025 Artisan Event Web Images3

Enjoy 5% OFF for Gold or Platinum or Bridal items with a min. spend of:

    • Gold or Platinum/ Wedding Bands: $2,900
    • Engagement Ring: $1,900
  • This promotion is available for any workshop booked and conducted in February
  • This package cannot be combined with other ongoing event or bridal fair promotions
  • This package cannot be combined with the complimentary viewing secret stone offer
  • Please note that the available stone setting styles are limited to 4-Prong and Flush settings only

For returning attendees who wish to have their stones set, kindly make an appointment via WhatsApp at +65 8890 8552.

Japanese Master Craftsman - Shindo san
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We’re excited to announce that our last studio event of the year is happening from December 12th to 20th, Wednesday to Sunday!

This December, we’re delighted to welcome Shindo-san back to our studio for another special celebration of craftsmanship, creativity and golden moments.

This festive season, we’re inviting you to slow down, be present and create something meaningful with us. Because the best gifts aren’t always found in a box. Sometimes, they’re made by hand, crafted with love and shared with someone special.

Your presence is a gift. Your creations become memories. And every piece tells a story.

Come make something special, make a memory, and most importantly, make moments that last.

  • Event-Exclusive Workshops & Services   

    イベント限定サービス

Enjoy shorter lead times for engagement rings with a limited selection of 0.2ct, 0.3ct, and 0.5ct natural diamonds available.

Instant Engagement Ring

A combination of Platinum and 18K Gold, offering a beautiful balance of simplicity and subtle detail in a timeless plain band.

Duo-Toned Ring

The event-exclusive 18K Gold Kasane Ring features a signature centre loop, customisable with textures or a gemstone.

Kasane Ring

Skip the usual 6–8 week wait and enjoy a turnaround of just one day to one week with the event’s in-house stone setting service.

On-site Stone Setting

  • 18K Lime Gold — Width Options & Price    

    18K ライムゴールド — 幅の選択肢と価格

  • 18K Lime Gold — Width Options & Price    

    18K ライムゴールド — 幅の選択肢と価格

Unique to MITUBACI, Lime Gold offers a subtle, understated elegance with a distinctive glow. Characterized by its greenish tint, it leaves a brilliant, individualistic impression — perfect for creating timeless pieces that speak softly yet powerfully.

The prices listed below are per ring and include a 3-hour crafting session.

Base Price:

  • 2.0mm — $1,400
  • 2.5mm — $1,750
  • 3.0mm — $2,000
  • 3.5mm — $2,300
  • 4.0mm — $2,700*

Note:

  • Size 21 – 24.5: Additional 10% on top of base price
  • Size 25 – 30.5: Additional 15% on top of base price
kobo-jewellery-material-landscape
kobo-jewellery-material-landscape

Unique to MITUBACI, Lime Gold offers a subtle, understated elegance with a distinctive glow. Characterized by its greenish tint, it leaves a brilliant, individualistic impression — perfect for creating timeless pieces that speak softly yet powerfully.

The prices listed below are per ring and include a 3-hour crafting session.

Base Price:

  • 2.0mm — $1,400
  • 2.5mm — $1,750
  • 3.0mm — $2,000
  • 3.5mm — $2,300
  • 4.0mm — $2,700*

Note:

  • Size 21 – 24.5: Additional 10% on top of base price
  • Size 25 – 30.5: Additional 15% on top of base price
  • Instant Engagement Ring     

    即納婚約指輪

Enjoy shorter lead times for engagement rings with a limited selection of 0.2ct, 0.3ct, and 0.5ct natural diamonds available at Kobo Jewellery Studio. 

Base Price:

  • Platinum Crown — $300
  • 2.0mm — $1,400
  • 2.5mm — $1,750
  • 3.0mm — $2,000
  • 3.5mm — $2,300
  • 4.0mm — $2,700*

Note:

  1. Size 21 – 24.5: Additional 10% on top of base price
  2. Size 25 – 30.5: Additional 15% on top of base price
  • Duo-Toned Ring     

    デュオトーンリング

Enjoy the best of both worlds with a seamless blend of two metals and colours. Our duo-tone rings are perfect for those who appreciate contrast and harmony, beautifully symbolizing two individuals coming together as one.

Our wedding bands are priced based on the selected width. All prices listed below are per ring and include a 3-hour workshop session.

Base Price:

  • 2.0mm — $1,650
  • 2.5mm — $2,000
  • 3.0mm — $2,250
  • 3.5mm — $2,550

Ring Size Surcharge:

  1. Size 21 – 24.5: Additional 10% on top of base price
  2. Size 25 – 30.5: Additional 15% on top of base price
  • 18K KASANE GOLD RING     

    18Kカサネゴールドリング

Introducing the 18K Gold Kasane Ring, named after the Japanese word for “layer.” Handcrafted in solid 18K champagne gold, its signature centre loop invites you to create a design of your own.

Available in slim silhouettes, wear it solo, stack it, or personalise it with hand-applied textures and meaningful gemstones.

Price:

  • 18K Kasane Gold Ring Making Workshop: $600
  • Optional 1.5mm Stone Setting (+$180)

Note:

  1. Size 21 – 24.5: Additional 10% on top of base price
  2. Size 25 – 30.5: Additional 15% on top of base price
  • Silver Signet Ring — Width Options & Price    

    シルバー・シグネットリング — 幅の選択肢と価格

  • Silver Signet Ring — Width Options & Price    

    シルバー・シグネットリング — 幅の選択肢と価格

Silver signet rings feature a plate as their focal point, ideal for custom engravings and textures—creating a charming, one-of-a-kind piece.

The prices listed below are per ring and include a 3-hour crafting session.

  • Small Signet Ring — $180
  • Big Signet Ring — $200

As part of this exclusive event, participants will enjoy:

  • Signet Plate Creation
  • Engraving
  • Texturing
  • Polishing

Join us for a workshop to create a ring adorned with textures, engravings, and stone settings that resonate with you in every precious way!

kobo-jewellery-silver-signet-rings
kobo-jewellery-silver-signet-rings

Silver signet rings feature a plate as their focal point, ideal for custom engravings and textures—creating a charming, one-of-a-kind piece.

The prices listed below are per ring and include a 3-hour crafting session.

  • Small Signet Ring — $180
  • Big Signet Ring — $200

As part of this exclusive event, participants will enjoy:

  • Signet Plate Creation
  • Engraving
  • Texturing
  • Polishing

Join us for a workshop to create a ring adorned with textures, engravings, and stone settings that resonate with you in every precious way!

  • ON-SITE STONE SETTING*​  

    現地でのストーンセッティング

  • ON-SITE STONE SETTING*​  

    現地でのストーンセッティング

Skip the usual 6-8 weeks down to one day to a week’s lead time (subject to studio’s schedule and availability) and experience the craftsmanship firsthand as our artisans showcase the intricate art of melee stone setting. Plus, enjoy $50 off your first stone setting, available for both new and returning customers. 

We provide two stone setting options: secret setting, nestled discreetly on the inner band, or outer setting, prominently displayed on the outer surface. In Japanese tradition, adding your partner’s birthstone inside your ring holds special significance. Symbolizing an everlasting connection between you two and keeping your partner close to you always.

Here are the different melee stone setting styles offered:

4-Prong | Flush | 4-Point Star | Flower (Event exclusive) | Paw (Event exclusive)

Add-on cost:

  • Secret Stone (1.3mm) + $100 each — $50 off the first stone setting per item
  • Outer Stone (1.5mm) + $150 each — $50 off the first stone setting per item 

Note:

Outer stone is limited to: Diamond, Ruby and Sapphires

  • Complimentary Starlight Texture  

    無料のスターライトテクスチャー

  • Complimentary Starlight Texture  

    無料のスターライトテクスチャー

kobo-jewellery-starlight-texture

A newly released Starlight Texture

Starlight Texture introduce a sparkly new finish that captures the beauty of scattered light.

Unlike our traditional hand-hammered textures, this design is achieved using a specialised machine for precise application, creating a consistent and refined surface. It can be applied across a variety of ring styles, including sleek bands and twisted designs. The result is a shimmering, glitter-kissed effect with a soft, stardust-like sparkle that shifts beautifully with every angle and movement of light.

This texture is available complimentary (free of charge) exclusively during this event.

A newly released Starlight Texture

kobo-jewellery-starlight-texture

Starlight Texture introduce a sparkly new finish that captures the beauty of scattered light.

Unlike our traditional hand-hammered textures, this design is achieved using a specialised machine for precise application, creating a consistent and refined surface. It can be applied across a variety of ring styles, including sleek bands and twisted designs. The result is a shimmering, glitter-kissed effect with a soft, stardust-like sparkle that shifts beautifully with every angle and movement of light.

This texture is available complimentary (free of charge) exclusively during this event.