RY Crystal is Known to be a very fine "Lead Crystal" it is 30% lead which makes it a "Lead crystal" under the European crystal standards. Lead in a crystal means the amount of light it reflects, anything above 28% lead is considered as high quality.

RY Crystal is a merging European crystal best known for their dazzaling shine on the Famous RY Crystal Chandeliers.

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The inclusion of at least 24% lead oxide in the composition is required by law for crystal to be called full lead crystal. The lead lends brilliance and weight to the product. Crystal without lead is still crystal, i.e. clear glass, however, it is more commonly perceived as &quotglass". The lead also make the crystal softer and more conducive to cutting. This is why the lead crystal is cut and for the most part, the unleaded crystal is not cut.

If a decanter is lead crystal, there should be a mark on the bottom of the item. You can read more about lead crystal at http://www.wisegeek.com/what-is-lead-crystal.htm.

Crystal glass contain lead.