Thank you for your continued support of MITUBACI.
Background of Price Revision
We are pleased to announce that we will be revising the selling price of K18 gold.
Due to the recent global situation, material prices have risen significantly over the past several years. In addition, transportation and energy costs have continued to rise as well.
Up to now, we have made every possible corporate effort to reduce costs and improve production efficiency. However, it has become extremely difficult to maintain current prices through self-help efforts alone, and we have come to the unavoidable conclusion that we must review our prices in order to maintain quality and continue to provide a stable supply of products.
We deeply apologize for any burden and inconvenience this may cause to our customers.
Details of Revisions
Price revision implementation date
Reservations applied for after October 11, 2025The new price will be available from
*Customers who apply for reservations by October 10, 2025 will be charged the old price even if they come on or after October 11, 2025.
Applicable products and revised prices
The prices of K18 gold for the "Wedding Rings" course, "Platinum and K18 Gold Rings/Pair Rings" course, and "Wedding Rings Completed at Home" course, and K18 gold for the "Engagement Rings" and "Handmade Diamond and Color Stone Rings" courses will be revised.
There will be no price revision for platinum at this time.
Wedding Rings" and "Platinum and K18 Gold Rings/Pair Rings" Course
| K18 GOLD RINGS | New price (tax included) |
| 1.7mm width | ¥88,000 |
| 2.0mm width | ¥104,500 |
| 2.5mm width | ¥126,500 |
| 3.0mm width | ¥154,000 |
| 3.5mm width | ¥181,500 |
| 4.0mm width | ¥214,500 |
| 5.0mm width | ¥308,000 |
Engagement Ring" Course
| K18 GOLD RINGS | New price (tax included) |
| 1.7mm width | Platinum price +¥22,000 |
| 2.0mm width | Platinum price +¥38,500 |
| 2.5mm width | Platinum price +¥60,500 |
| 3.0mm width | Platinum price +¥88,000 |
| 3.5mm width | Platinum price +¥126,500 |
About our future services
This price revision is our decision to continue to provide our customers with the best jewelry and exclusive workshops that cannot be experienced anywhere else.
We sincerely appreciate your understanding as we continue our efforts to maintain and improve quality to further satisfy our customers.
We thank you again for your continued patronage of MITUBACI TOKYO.
October 7, 2025
MITUBACI TOKYO
