Understanding Real-Time Precious Metal Valuation & Weight Units
Gold, silver, and platinum pricing rely on international commodity exchange rates, purity metrics, and precise unit conversions. Jewelers and pawnshops routinely measure precious metals in grams, troy ounces, and Pennyweights (dwt).
Common Hallmarks & Purity Standards
The karat system or millesimal fineness stamps indicate pure metal parts per thousand:
- 24K Gold / Fine Silver / Fine Platinum (999 Stamp): 99.9% Pure metal.
- Sterling Silver (925 Stamp): 92.5% Pure silver alloy.
- 18K Gold (750 Stamp): 75.0% Pure gold.
- 14K Gold (585 Stamp): 58.3% Pure gold.
- Standard Platinum (950 Stamp): 95.0% Pure platinum.
Weight Unit Conversions Quick Reference
When evaluating scrap precious metals, standardizing unit weights ensures accurate valuation:
• 1 Troy Ounce (oz) = 31.1035 Grams (g)
• 1 Pennyweight (dwt) = 1.5552 Grams (g)
• 1 Troy Ounce (oz) = 20 Pennyweights (dwt)
Frequently Asked Questions (FAQ)
How do I choose my preferred currency?
Select your desired currency from the Currency dropdown menu. The calculator automatically updates foreign exchange rates and calculates spot prices across major global currencies.
How does stone deduction work?
Toggle Subtract Non-Metal / Stone Weight and input the estimated weight of gems or non-precious materials. The system calculates payout value strictly on the net metal weight.
What is a Pennyweight (dwt)?
A pennyweight is a standard jeweler unit equivalent to 1/20th of a troy ounce or approximately 1.555 grams.