grand larceny

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The more serious form of larceny, as distinguished from petit larceny, based on the monetary value of the stolen item.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun US, criminal law larceny of property whose value is greater than an amount set by law to distinguish it from petty larceny

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun larceny of property having a value greater than some amount (the amount varies by locale)