MIXED METAL MARK + METAL
Hallmarking legislation changes on 6th April 2007 allowed for a helpful change in the hallmarking of articles of precious metal parts and other materials.
A mixed precious metal and base metal article, or an article of mixed precious metal and other materials, can only be hallmarked if any precious metal component is at least the minimum legal fineness for that metal i.e. Gold 375. Silver 800. Platinum 850, Palladium 500 (parts per thousand). The word +METAL must be applied next to the hallmark. The full hallmark applied will refer to the least noble metal, in order from lowest to highest; silver, palladium, gold, platinum. Where more than one precious metal is present, the item will also be stamped with a minor mark (ie just the fineness) to indicate the other metals.
WHAT NEEDS TO BE HALLMARKED?
- Anything which is to be described as silver, gold, platinum or palladium must be hallmarked if it is to be sold as such, unless it falls beneath the appropriate exemption weight.
- All precious metals must be of the minimum legal fineness or the article cannot be hallmarked.
- Precious metals below the minimum fineness cannot be regarded as a base Metal.
- Exemption Weights for Mixed Precious and Non-Precious Articles are based on the total weight of metal in the article (ie excluding stones or other non metal parts).
THE STANDARD EXEMPTION WEIGHTS APPLY SO:
All articles with a component to be described as platinum in which the total weight of all metal is over 0.5 grams will need to be hallmarked.
All articles with a component to be described as palladium in which the total weight of all metal is over 1.0 gram will need to be hallmarked.
All articles with a component to be described as gold in which the total weight of all metal is over 1 gram will need to be hallmarked.
All articles with a component to be described as silver in which the total weight of all metal is over 7.78 grams will need to be hallmarked.
REGULATIONS FOR ARTICLES OF TWO OR MORE PRECIOUS METALS
- The item can only be marked if, in the opinion of the Assay Office, an ordinary person will be able to determine which part is which precious metal.
- Each precious metal component must be at least the minimum legal fineness for that metal ie: Gold 375. Silver 800. Platinum 850 and Palladium 500.
- The full hallmark (Assay Office and fineness mark) struck will be that of the least precious metal, in order, silver, palladium, gold, and platinum. This will normally be struck on the appropriate metal.
- The minor (fineness) mark only will be stamped on the “higher” precious metals.
- Where small components are used the above may not be possible. In these circumstances the following rules apply:
- If it is not practical to stamp the fineness marks on the “higher” precious metals, they may be stamped on the lower precious metals.
- If this is not practical then the fineness marks can be stamped on another precious metal part.
- If neither of these options are practical, then the full (Assay Office and least precious metal fineness) mark will be applied on the least precious metal part and all other marks omitted.
REGULATIONS FOR ARTICLES OF PRECIOUS METAL PARTS AND OTHER MATERIALS
- A mixed precious metal and base metal article can only be hallmarked if any precious metal component is at least the minimum legal fineness for that metal ie Gold 375. Silver 800 Platinum 850 and Palladium 500.
- Base metal parts must be clearly distinguishable from precious metal parts by Colour, or by having the word METAL or the name of the metal struck on the base metal part (brass, stainless steel, titanium etc)
- The non-precious metal part must not be plated to resemble any precious metal.
- The extent of each part must be clearly visible.
- A mixed metal article containing only a single precious metal will be hallmarked on the precious metal part only.
- For an article with more than one precious metal and a base metal the rules which apply to hallmarking Mixed Precious Metals apply.