Rule 10h. The position of the inceptive axis should be determined by: (1) use of the project as ring, pendant, or bar pin, (2) character of the primary mass as either vertical or horizontal in proportion.
Rule 10i. Caution should be exercised with regard to the use of enamel. Over-decoration by this material tends to cheapen both process and design.
Rule 10j. All surface enrichment should have an appearance of compactness or unity. Pierced spots or areas should be so used as to avoid the appearance of having been scattered on the surface without thought to their coherence.
Rule 10k. Built, carved, and chased enrichment should have the higher planes near the point of concentration. It is well to have the stone as the highest point above the primary mass. When using this form of enrichment, the stone should never appear to rise abruptly from the primary mass, but should be approached by a series of rising planes.
Rule 10l. The lanes or margins between enameled spots should be narrower than the lane or margin between the enamel and the contour of the primary mass.
Rule 10m. Transparent and opaque stones or enamel should not be used in the same design.
Surface Enrichment of Base and Precious Metals For Large Primary Masses
Rule 11a. The preliminary steps toward surface enrichment should be thought out before they are drawn.
Rule 11b. Conservative application should mark the use of surface enrichment of large masses. Its use should: (1) lighten or soften necessarily heavy construction; (2) support or apparently strengthen good structure; (3) add interest to large unbroken and uninteresting surfaces.
Rule 11c. The type of design unit for large masses should be bolder than similar designs for small primary masses.