Editor’s Note
This article announces a special New Year promotion for SHINCA, Japan’s first lab-grown diamond jewelry brand. The “SHINCA NEW YEAR LIMITED Best Seller Selection 2026” will be available at its directly managed stores from January 4 to February 28, 2026.

SHINCA, Japan’s first lab-grown diamond jewelry brand manufactured and sold by IMAYO Co., Ltd. (Headquarters: Nakagyo-ku, Kyoto; President and CEO: Nobutaka Imanishi), will launch a special promotion titled “SHINCA NEW YEAR LIMITED Best Seller Selection 2026” at its domestic directly managed stores (SHINCA Ginza, IMAYO Kyoto Oike Store) starting January 4, 2026. This limited-time event, running from January 4 (Sun) to February 28 (Sat), 2026, offers a curated selection of SHINCA items at special prices.

SHINCA is Japan’s first lab-grown diamond jewelry brand created by IMAYO, a jewelry maison that weaves together Japanese beauty and tradition. Since sales began on October 1, 2018, it has pioneered the domestic lab-grown diamond jewelry industry, gaining support for its high product quality born from carefully selected materials and skilled craftsmanship. The brand proposes brilliant jewelry that features the sustainable brilliance of lab-grown diamonds—born without harming the earth—and meticulous construction focused on every detail to bring out their exceptional beauty.
Name: “SHINCA NEW YEAR LIMITED Best Seller Selection 2026”
Period: January 4 (Sun) to February 28 (Sat), 2026

Target Stores: SHINCA Ginza, IMAYO Kyoto Oike Store
Price: From 69,300 yen (tax included)
Special Site: https://imayo-boutique.jp/shop/pg/1shinca-newyear-2026/

Lab-grown diamonds (synthetic diamonds) are, as the name suggests, diamonds grown in a laboratory. They differ from natural diamonds only in their production environment, sharing exactly the same scientific composition and characteristics. They are entirely 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 over 99% of mined natural diamonds—and their ecological spirit of being born without harming the earth.