Prices

How the index is worked out

• All priced stonesThe 25 stones together, weighted by what each sells for
  Not enough sales
• Diamond
  Not enough sales
• Emerald
  Not enough sales
• Blue sapphire
  Not enough sales
• Ruby
  Not enough sales
• Jadeite
  Not enough sales
• Pearl
  Not enough sales
• Pink sapphire
  Not enough sales
• Yellow sapphire
  Not enough sales
• Padparadscha sapphire
  Not enough sales
• Tanzanite
  Not enough sales
• Precious opal
  Not enough sales
• Red spinel
  Not enough sales
• Pink spinel
  Not enough sales
• Paraíba tourmaline
  Not enough sales
• Aquamarine
  Not enough sales
• Rubellite
  Not enough sales
• Alexandrite
  Not enough sales
• Tsavorite garnet
  Not enough sales
• Spessartine garnet
  Not enough sales
• Morganite
  Not enough sales
• Other tourmaline
  Not enough sales
• Cobalt blue spinel
  Not enough sales
• Topaz
  Not enough sales
• Quartz
  Not enough sales
• Demantoid garnet
  Not enough sales

No index has been published yet. A quarter needs at least 10 recorded sales before it gets a figure. Until the market opens there are none, so every segment says this.

Figures in US dollars per carat

Endpoints

GET /api/prices/v1/indices · every index with its latest quarter and the 4 before it
GET /api/prices/v1/indices/{segment} · one index with its last 5 quarters
overall, diamond, emerald, blue-sapphire, ruby, jadeite, pearl, pink-sapphire, yellow-sapphire, padparadscha-sapphire, tanzanite, precious-opal, red-spinel, pink-spinel, paraiba-tourmaline, aquamarine, rubellite, alexandrite, tsavorite, spessartine, morganite, other-tourmaline, cobalt-blue-spinel, topaz, quartz, demantoid
GET /api/prices/v1/check?… · a price per carat for one stone, the same answer as Price Check, with the same fields

Example

curl https://erebaur.com/api/prices/v1/indices/overall

curl 'https://erebaur.com/api/prices/v1/check?variety=ruby&carats=2.05&lab=GRS&reportNumber=GRS2024-071234&reportDate=2024-07-15&treatment=none&origin=MZ'