What is the Sieve Set?

• A. A set of circular plates with no holes.
• B. A set of circular plates, each punched with precisely sized holes, used for sorting small, round gems by size.
• C. A set of circular plates with holes sized to sort gem by size.
• D. A pad for sorting stones by color.

Answer: (C)

At its core, a Sieve Set uses drilled holes to separate gems by diameter. It consists of circular plates, each with holes of a specific size, so stones that are too large are held back while those that fit pass through to the next plate. By using a stack of progressively smaller holes, you sort small, round gems by size and create distinct size groups. That straight description—circular plates with holes sized to sort gems by size—best captures how the tool works. The other options omit the essential hole sizing or describe a different function (no holes or color sorting).