Spot platinum fell nearly 3% intraday to $1,492.08/oz.

U.S. stocks opened lower: Dow -0.45%, S&P 500 -0.5%, Nasdaq -1.35%. Alphabet (GOOG.O) plunged 11.7% after Q3 revenue missed expectations and cash burn intensified, weighing on AI software names. Microsoft (MSFT.O) rose 0.5% after reporting cash flow well above forecasts and guiding to strong cloud growth. Samsung Electronics results pressured memory-related stocks; Micron Technology (MU.O) fell 1.8%.

China A-share lab-grown diamond sector active in early trade; Woerde up >6%, Huifeng Diamond up >3%, Hengsheng Energy, Huanghe Xuanfeng, Liliang Diamond and Sifangda also higher.