Between shoes, clutches, and now jewels, we’re developing a bit of a pulp addiction. Wood is back in fine jewelry after a too-lengthy hiatus, as designers rediscover its rich hues, fascinating grain patterns, and sturdy nature—ideal for carving and for setting gemstones. Looking for a warm and bohemian accessory? Consider wood a solid choice. (Top) Bangle in cocobolo wood with 18k gold and a one-of-a-kind quartz; $3,475; Kimberly McDonald, NYC; 646-205- 9994; kimberlymcdonald.com   (Inset) Ali ring in 18k gold–plated silver and hornbeam wood with turquoise; €330 ($370); Aurélie Bidermann, NYC; 212-335-0604; aureliebidermann.com   Marquetry wood earrings in 18k yellow gold with amethysts and diamonds; $9,500; Silvia Furmanovich&nb