Method of growing polycrystalline diamond material surrounding single crystal diamond

A method of growing an embedded single crystal diamond structure, comprising:

• disposing a single crystal diamond on a non-diamond substrate, wherein the non-diamond substrate is larger than the single crystal diamond;
• masking a top portion of the single crystal diamond using a masking material, wherein the masking the top portion of the single crystal diamond comprises disposing a frame structure on the top portion of the single crystal diamond, wherein the frame structure is contacting a peripheral area that is protectable from growth, and disposing a solid blocking structure on top of the frame structure, wherein the solid blocking structure blocks growth of diamond material, wherein the frame structure prevents contact of the solid blocking structure with the single crystal diamond, and wherein the frame structure and solid blocking structure prevents any growth within the peripheral area;
• and
• using a chemical vapor deposition (CVD) growth chamber, growing polycrystalline diamond material surrounding the single crystal diamond in order to join the single crystal diamond to the polycrystalline diamond material.