Contrary to popular belief, luxury is not out of your average shopper's reach. We've got the diamond-pavé jewels to prove it.      CUFFSON THE EDGEBracelet in 18k RougeRoyal gold with 3.84 cts. t.w. brilliant-cut diamonds; $42,000; IsabelleFa, Eisingen, Germany; 49-723-238-1660; isabellefa.com LET THE SUN SHINE INRising Sun cuff in 14k gold with 4.61 cts. t.w. diamonds; $12,250; Astley Clarke, London; 44-207-706-0060; astleyclarke.comRAY MATTER18k yellow gold cuff with 6.34 cts. t.w. diamonds; $47,000; Miseno, Matawan, N.J.; 732-689-2340; misenousa.comBLUE & PURPLE CLIMB WARPMelting Ice Ear climbers in 18k rose gold with 0.7 ct. t.w. amethyst, 0.46 ct. t.w. rhodolite garnet, and 0.2 ct. t.w. diamonds; $1,500; Madstone, NYC; 212-518-6607; madstonedesign.com SWEET PURPLEPendant necklace in 18k white gold with a 12 c