| 2021 - Present | Founded and running Millennium Sapphire Studios creating unprecedented, ornate gemstone carvings |
| 1998 - Present | Founded Millennium Sapphire Inc, procuring,
designing and publicizing the world’s largest
carved Sapphire
 |
| Early to mid 1990s |
Designer and Founder of leading line of silver and gold accent jewelry in Japan under the moniker, Daniel Le Duc |
| Early to late 1980s |
Founded premier Jewelry Company, Wynmere Limited, in partnership with former Texas governor, John Connally |
| Early to mid 1980s |
Independent jewelry designer and manufacturer for US-based retailer the Sharper Image |
| 1981 - 2000 | Founded and operated a Gemstone cutting factory in Hong Kong catering to clients in across Asia, Europe and North America |