mc_rebalance/data/tconstruct/recipes/smeltery/melting/diamond/smithing_template.json

{
  "type": "tconstruct:melting",
  "ingredient": [
    {"tag": "minecraft:trim_templates"}
  ],
  "result": {
    "amount": 100,
    "fluid": "tconstruct:molten_diamond"
  },
  "temperature": 1450,
  "time": 186
}