How to weigh & value white gold

Written by linda richard
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How to weigh & value white gold
Wedding rings are often white gold. (wedding ring jewellery image by Lansera from Fotolia.com)

Gold prices have continued to climb in 2010, and Grandma's old jewellery is looking more like dollars than baubles. Antique gold jewellery is yellow gold, but after 1920, white gold jewellery appeared on the fashion scene. Red gold and green gold are available, too, but are accent colours, not the background alloy. Pure gold is 24 carat and too soft for jewellery, so other metals are added to make the gold more durable. You can weigh and value any colour of gold with some knowledge.

Skill level:
Moderate

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Things you need

  • Loupe or magnifying glass
  • Gram scale

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Instructions

  1. 1

    Check inside white gold jewellery for marks that identify the maker and the carat. Quality jewellery often has a logo from the maker and a carat mark. Since 24K is pure gold, 18K is 75 per cent gold and 25 per cent alloy. Gold marked 14K is 58.5 per cent gold and 10K is 41.7 per cent gold. The alloy or metals added make the difference in yellow gold and white gold. Yellow gold has copper and silver added to make it durable. White gold has silver and sometimes palladium or nickel and zinc, but early white gold may have platinum, making the metal content more valuable. Platinum exceeds gold in value, where silver, palladium, nickel and zinc are relatively inexpensive.

  2. 2

    Use a gram scale to weigh gold, or have it weighed by someone with a gram scale. Your local pawn shop may weigh a single item for you. Gold prices reflect an ounce price, but the scale shows grams, and it takes 31.1 grams to make an ounce.

  3. 3

    Calculate scrap value with a gold calculator by checking the daily price of gold on a website like Kitco and using that value for the ounce price. Place the number of grams and the carat weight in the calculator and read the scrap gold value.

  4. 4

    Consider the value of white gold jewellery as jewellery, not as scrap gold. Although the price of scrap gold is sometimes tempting, a logo inside a piece of gold jewellery may make it more valuable if you can determine the maker. Take it to a jeweller who is a certified appraiser or a member of the Gemological Institute of America (GIA) and ask before you act.

Tips and warnings

  • Value any gemstones that may be included in the piece. Stones set in gold are often real diamonds, rubies and emeralds and should be valued separately.

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