Embroidered necklace

Description: an elaborately constructed necklace featuring double chains of gold and silver, interspersed with a stunning arrangement of expertly cut diamonds set in burnished iron discs
Raw materials:
50 grams of iron,
60 grams of diamonds,
50 grams of gold,
50 grams of silver,
30 grams of nickel
Days: 10
Tools: soldering iron, bronze or steel peen hammer, pliers, grinder
Machinery: work bench