White, low-acid nectarine. Origin: in LeGrand, Calif., by Lowell Glen Bradford, and Norman G. Bradford. Introduced in 1997. Ruby Diamond (USPP7918) nectarine × unnamed white nectarine. USPP 10924 issued on 25 May 1999. Tree: flowers large, showy; self-fertile. Leaf glands reniform; alternate. medium; medium vigor; spreading and dense; very productive. Fruit: uniform; large; skin is pale purplish pink; flesh greenish white, very firm, tough, crisp, nonmelting, subacid, and very sweet; freestone. Ripens from 20 June to 3 July in LeGrand, Calif., 9 days later than June Pearl.