Developing this theme, a recent theoretical literature on urban growth con-trols abstracts from the market failures considered above and portraysgrowth-control policies as a way for landowners to raise their incomes (andperhaps their quality of life) at the expense of renters.
Origin: Brazil. Price per carat: $2,000.00. Enhancement code-N No evidence of heat or other enhancement. Example. Natural Imperial Topaz. Carat Weight: 14.9ct.
The Archduke Joseph, $21.4 million. In November 2012, this 76.02-carat diamond set a new record for the most expensive colorless diamond per carat ever sold at auction. Originally discovered in the Golconda mines in India, the cushion-shaped diamond was named for Austriaâs Archduke Joseph August, the great-grandson of a Roman emperor and a French king.