Editor’s Note
This article announces the launch of SHINCA’s first Christmas coffret, a limited-edition holiday set available from October 2025.
IMAYO Co., Ltd. (Headquarters: Nakagyo-ku, Kyoto; President and CEO: Nobutaka Imanishi), the manufacturer and seller of Japan’s first lab-grown diamond jewelry brand “SHINCA,” will launch its first-ever Christmas coffret, the “SHINCA HOLIDAY LIMITED Starter Coffret 2025,” in limited quantities at its domestic directly operated stores (SHINCA Ginza, IMAYO Kyoto Oike Store) starting Thursday, October 30, 2025. The sale will be available for a limited period from October 30 (Thursday) to December 29 (Monday).
In addition to products common to all directly operated stores, limited-edition items available only at “SHINCA Ginza” and “IMAYO Kyoto Oike Store” will also be offered. SHINCA’s starter coffret is recommended not only as a self-reward but also as a gift for loved ones during the year-end holiday season when opportunities to spend time with family and friends increase.
To coincide with the launch of the Christmas coffret, a limited-time benefit has been prepared, allowing customers to choose special specification wrapping recommended for holiday gifts, in addition to the standard wrapping.
SHINCA is Japan’s first lab-grown diamond jewelry brand created by the jewelry maison “IMAYO,” which weaves together Japanese beauty and tradition. Since sales began on October 1, 2018, it has been a pioneer in Japan’s lab-grown diamond jewelry industry, gaining support for its high product quality achieved through carefully selected materials and skilled craftsmanship. The brand proposes gorgeous jewelry featuring the sustainable brilliance of lab-grown diamonds—born without harming the earth—and delicate construction that meticulously attends to detail to bring out their exceptional beauty.
Name: “SHINCA HOLIDAY LIMITED Starter Coffret 2025”
Period: October 30, 2025 (Thursday) to December 29, 2025 (Monday)
Target Stores: SHINCA Ginza, IMAYO Kyoto Oike Store
Price: From 100,000 JPY (tax included)
Benefit: To coincide with the Christmas coffret launch, special specification wrapping recommended for holiday gifts can be selected.
Special Site: https://imayo-boutique.jp/shop/pg/1shinca-holiday-2025/
Notes: Quantities are limited; sales will end once sold out. This product is not available on the official online store.
Lab-grown diamonds (synthetic diamonds) are, as the name suggests, diamonds grown in a laboratory (lab). They differ from natural diamonds only in their production environment; they are scientifically identical in composition and characteristics and are completely different from imitation or simulant stones like moissanite or cubic zirconia. The world is paying attention to their exceptional beauty, featuring a clear brilliance with almost none of the impurities found in only a few percent of mined natural diamonds, and their ecological spirit of being born without harming the earth.