Lowest price:$559.99Description: min 2.00ct 9x7mm oval imperial topaz. imperial topaz was found in 19th century russia when pink topaz was discovered there. it was so liked by the russian czar it became the sole property of him his family and friends thus the name imperial . today the name is used to describe peach to intense orange topaz with red deep pink and reddish-orange hues. it ranks at 8 on the mohs' scale with other topaz and is a rare find.