1. Shape must be produced correctly: Oval should be properly proportioned and Rounds must be round, Octa-gon must be Octagon...etc.

2. Size: When calibration is specified, it must be within +/-0.1mm.

3. All stones should be cut in proper proportions: e.g. crown main angles should never fall below 30 and in fact should cut at the correct angle for the particular materials. No low crowns. Pavilions should not be cut too deep, nor appear the "fish-eye". Pavilion main angle should never be cut below 41 regardless of the materials and for Beryl, Quartz or other similar materials not below 43. The girdles should be uniform.

4. Thickness: usually the thickness is 65~70% of its diameter.

5. Polish should be scratched free under eyes.

6.When "clean" stones are specified, the stones should be inclusions free, and no Cracks.

7. Consistence of design: Unless specified, each general shape must have the same faceted design.

8. Specific cutting instructions will be provided for each separate item. These must be followed exactly. They will specify what shape are wanted and in what size. No other shapes and/or size should be cut. Materials which are not suitable should be returned with uncutting.

9. Consistency. Each order must be cut with the same quality and the same design as previous order. That means, the order of cutting, no matter just receive or received one year ago, the quality of cutting should be the same.