- April 1972
- Founded as Murao Shoten in Kanda Awajicho, Chiyoda Ward, Tokyo.
- March 1976
- Murao Shoten Co., Ltd. is established with capital of 10 million yen.
- December 1977
- Kanda Head Office Building completed.
- January 1978
- Capital increased to 40 million yen.
- June 1980
- Capital increased to 60 million yen.
- January 1981
- Established subsidiary SAN Co., Ltd. in Ueno, Taito Ward, Tokyo for the purpose of opening a showroom.
- July 1982
- Established a subsidiary, JUERI Parts Co., Ltd., in Ueno, Taito Ward, Tokyo for the purpose of wholesaling parts for precious metal products.
- January 1983
- Murao Shoten Co., Ltd. changes its name to Murao Co., Ltd.
- February 1983
- Construction of the Murao Building No. 2 completed in Tatekawa, Sumida Ward, Tokyo and the Sales Headquarters and Product Development Headquarters were relocated.
- May 1985
- Capital increased to 90 million yen.
- September 1985
- SAN Co., Ltd. and JUERI Parts Co., Ltd. open in Ueno Jewelers Town Aurum, Taito Ward, Tokyo.
- October 1985
- Capital increased to 150 million yen.
- August 1988
- Opened Osaka Sales Office to strengthen sales network and improve service in the Kansai, Chugoku, and Kyushu regions.
- March 1989
- Established subsidiary Aurum SAN in Ueno, Taito Ward, Tokyo with the aim of strengthening the sales network.
- September 1990
- Capital increased to 192 million yen.
- May 1991
- Merged with SAN Co., Ltd., Aurum SAN Co., Ltd., and JUERI Parts Co., Ltd.
- June 1991
- Chiba office "Jewelry Murao" completed, Product Development Headquarters relocated.
- June 1991
- Capital increased to 592 million yen.
- October 1991
- Established subsidiary Murao Zhubin Accessories Co., Ltd. in Hong Kong.
- September 1992
- Head office relocated to Tatekawa, Sumida Ward, Tokyo.
- June 1993
- The SAN Division and Parts Division were merged to form the SAN-JUERI Division.
- August 1999
- Merged with a Hong Kong subsidiary and opened a Hong Kong sales office.
- April 2001
- The SAN-JUERI Division changed its name to the Ueno Sales Division.
- April 2011
- Hong Kong sales office relocated to 36 Man Yue Street, Hung Hom.
- February 2014
- Capital reduced to 100 million yen.
- April 2014
- Opened Kofu Sales Office in Kofu City, Yamanashi Prefecture.
- February 2017
- Head office relocated to Kanda, Chiyoda Ward, Tokyo.
- March 2024
- The Kofu sales office was renovated and a parts shop was added.