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Shelby Gem Factory

From Alfawiki
Adapted from the English Wikipedia article Shelby Gem Factory, available under CC BY-SA 4.0Updated 8 August 2025
ICT Incorporated
Company typePrivate
IndustrySynthetic gemstones manufacturing
Founded1970
FounderLarry Paul Kelley, Craig Hardy, Tom VanBergen
DefunctDecember 2019
Headquarters
Shelby
,
United States
Key people
Larry Paul Kelley (sole proprietor by 2015)
ProductsSynthetic gemstones, including ruby crystals and cubic zirconia

The Shelby Gem Factory served as the manufacturing site for ICT Incorporated, located in Shelby, Michigan, United States. ICT specialized in producing synthetic gemstones through unique proprietary methods. Established in 1970, the company discontinued its operations in December 2019.

History

ICT (International Crystal Technology) was established in 1970 by Larry Paul Kelley along with partners Craig Hardy and Tom VanBergen. Kelley brought with him expertise gained from his work at Dow Chemical and a laser crystal manufacturing plant in Ann Arbor. The decision to situate the factory in Shelby was influenced by the availability of a newly developed industrial park. By 2015, Kelley had become the sole proprietor of the company.

At its inception, the Shelby Gem Factory focused on producing synthetic ruby crystals primarily intended for ruby laser applications, catering mainly to clients in California. As advancements occurred in laser technology, the company expanded its product range to include synthetic gemstones of multiple colors aimed at a wider customer base. Utilizing Soviet research on cubic zirconia, Kelley succeeded in becoming the first commercial manufacturer by resolving significant temperature regulation issues. This breakthrough made cubic zirconia a profitable product line, leading Shelby to establish additional manufacturing facilities overseas to satisfy growing demand. Nevertheless, the market price for cubic zirconia experienced a steep decline, relegating it to use as filler material during periods of factory growth. In 1983, ICT inaugurated a faceting facility in southern China dedicated to producing jewelry-grade stones; this plant ceased operations in 1991, after which faceting was outsourced to firms located in China and South Korea. Prior to the 1997 Asian financial crisis, South Korea accounted for as much as 40% of ICT’s sales, but demand sharply decreased following the economic downturn. Starting in 1994, ICT also began recrystallizing rubies by melting low-quality stones imported from Myanmar.

The Shelby facility featured a theater with seating for 50 guests where company information was presented to visitors, and it also operated an on-site jewelry retail outlet.

Operations at the factory ended in 2019 after Larry Kelley was diagnosed with Alzheimer's disease in 2017. Additional contributing factors included intensified global competition and the increasing prominence of online sales platforms. Larry Kelley passed away on October 24, 2020.

Manufacturing

Some of the furnaces used during production reached temperatures as high as . Due to concerns over safety risks associated with intense heat and bright illumination, coupled with rising insurance expenses, public tours of the factory were discontinued.

The creation of gems took place within industrial furnaces. The Shelby Gem Factory manufactured diamond simulants alongside imitation citrine, topaz, and various other synthetic birthstone alternatives.

See also

Further reading

External links