SpotGoldValue — Live Gold Calculator 作者： SpotGoldValue

SpotGoldValue is a free live gold price calculator
extension for everyday gold sellers and first-time
investors in the USA.

4 calculators in one:
- Scrap Gold — enter karat and weight to get melt value
- Jewelry — supports 10K, 14K, 18K, 22K, 24K, 585, 750, 375
- Coins — 39+ US bullion, pre-1933 and world bullion coins
- Dental Gold — crown, bridge, inlay, PFM and more

Features:
- Live gold spot price updated every 60 seconds
- Payout estimates by buyer type (pawn, dealer, refiner)
- Works in grams, pennyweight (dwt) and troy ounces
- No account, no sign-up, completely free
- Offline fallback using last known price

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