[Important Notice] JewelryDIANA Japanese-made gold and platinum product price revision scheduled for February 28, 2026 (Saturday)

Thank you for always using MPM Musashi.

Today, we have an important announcement regarding our main product, the Japanese-made jewelry from the JewelryDIANA brand .

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■ Regarding the items subject to price revision

The following products are subject to this price revision. The affected products are listed on their respective pages.

• Japanese-made gold products (K10 and K18) and platinum products from the JewelryDIANA and JewelryDIANA J-ENDAi (high jewelry) brands.

* The JewelryDIANA Lumière Japan brand is excluded from this offer .
Lumière Japan does not currently manufacture gold or platinum products.

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■ Background of the price revision

All of JewelryDIANA's gold and platinum products are made to order at our second factory in Kofu.

We have received official notification from the factory regarding price revisions due to rising raw material costs and increased processing costs.

While we have strived to maintain prices as much as possible until now, in order to continue our domestic production system and maintain quality in Japan, we are unfortunately planning to revise the prices of some of our products .

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■ Scheduled date for price revision

Friday, February 6, 2026 → Saturday, February 28, 2026

*Details of the revisions vary depending on the product. We are covering the increase in precious metal prices, so you can purchase these items at a great price for a limited time only! ✨

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■ Regarding orders placed at the pre-revision price

Orders will be accepted at the current price until February 27, 2026 (Friday) , before the price revision.

Since all JewelryDIANA products are made to order, there is a time limit for orders placed at the previous price.

If you are considering purchasing any of our products, we recommend placing your order as soon as possible.

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■ About Silver Products

Due to the impact of raw material costs, there will be a price revision for our Japanese-made silver products in the near future .

We will inform you again once the details are finalized.

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At MPM Musashi, we will continue to work in cooperation with Japanese jewelry factories to ensure honest craftsmanship and consistent quality.

We kindly ask for your understanding.

MPM Musashi
JewelryDIANA Management Headquarters

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This is your last chance to get the price before the price increase! Announcement
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