SIC 3915 Jewelers' Findings and Materials, and Lapidary Work

Contenidos

• NAICS CODE(S).
• FURTHER READING.

SIC 3915

This category covers establishments primarily engaged in manufacturing unassembled jewelry parts and stock jewelers' materials such as wire, tubing, and sheeting; and establishments of lapidaries primarily engaged in cutting, slabbing, tumbling, carving, engraving, polishing, or faceting stones from natural or manmade precious or semiprecious gem raw materials, either for sale or on a contract basis for the trade; in recutting, repolishing, and setting gem stones; or in drilling, cutting, or otherwise preparing jewels for instruments, dies, watches, chronometers, and other industrial uses. This industry includes the drilling, sawing, and peeling of real or cultured pearls. Establishments primarily engaged in manufacturing synthetic stones for gemstones and industrial uses are classified SIC 3299: Nonmetallic Mineral Products, Not Elsewhere Classified, and those manufacturing artificial pearls are classified in SIC 3961: Costume Jewelry and Costume Novelties, Except Precious Metal.

NAICS CODE(S)

339913

Jeweler's Material and Lapidary Work Manufacturing

The approximately 300 establishments in this industry produced roughly $1.1 billion in shipments in the early 2000s, out of the $8.6 billion produced by the combined jewelry and silverware manufacturing sector. Precious metal finding accounted for more than half of this total. Production in this industry is centered in New England. The six main states producing jewelers' findings and lapidary work were Rhode Island, Massachusetts, New Jersey, California, New York, and Florida. Together, these states accounted for roughly 50 percent of total U.S. output in this industry.

The largest diamond in existence is the Cullinan, which was discovered in 1905. The Cullinan weighed 3,106 carats (about 1.4 pounds) before it was cut into 105 distinct gems totaling almost 1,100 carats. The Star of Africa (named for the Cullinan's place of discovery, the Premier Mine in Transvaal State in South Africa) was given to King Edward VII of Great Britain and set in the Royal Scepter, one of the British Crown Jewels. The Star of Africa weighs 530.2 carats. The Great Mogul diamond of 240 carats has vanished since its existence was originally reported in 1665; the Kohinoor Diamond (106 carats and also a part of the British Crown Jewels) may have been part of the Mogul. Other famous single diamonds are the Vargas diamond found in Brazil in 1938 and the Jonker and...