American platinum used in Estate Platinum Engagement Rings for the last half century contains either 90% or 95% pure platinum. Your Platinum Diamond Engagement Ring was made from 133 tons of platinum mined annually compared to 1,782 tons of gold, taking five months to process this precious, lasting appealing metal into pure platinum. After substantial metallurgical and chemical experimentation, Wollaston, known for his discovery of extracting powdered platinum from an intractable alluvial ore between 1800 and 1801, also discovered four of the five platinum group metals, namely ruthenium, palladium, osmium, iridium and platinum which have become essential for modern technological development.
 Vintage Solitaire Engagement $2,210.00
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 Vintage Sapphire Engagement Ring $2,600.00
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 Vintage Filigree Engagement Ring $650.00
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 Vintage Platinum Engagement Ring $3,900.00
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 Vintage Engagement Ring $4,550.00
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 Vintage Platinum Engagement Ring $2,210.00
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 Vintage Aquamarine Engagement Ring $1,690.00
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 Vintage Filigree Engagement Ring $4,290.00
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 Vintage Diamond Engagement Ring $780.00
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 Vintage Engagement Ring $2,860.00
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 Vintage Diamond Engagement Ring $2,600.00
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 Vintage Engagement Ring $5,000.00
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 Vintage Diamond Engagement Ring $910.00
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 Vintage Engagement Ring $3,120.00
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 Vintage Platinum Engagement Ring $4,600.00
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 Vintage Engagement Ring $2,860.00
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 Vintage Platinum Engagement Ring $1,950.00
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 Vintage Diamond Engagement Ring $1,040.00
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