Platinum Underwriters (PTP) 10-Q 2006 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Michael D. Price, President and Chief Executive Officer of Platinum Underwriters Holdings, Ltd., hereby certify to the best of my knowledge and belief that this Quarterly Report on Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d)) and that the information contained in this Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Platinum Underwriters Holdings, Ltd.

July 31, 2006	/s/Michael D. Price
	By: Michael D. Price
	President and Chief Executive Officer