Diamonds

A diamond is a mineral consisting essentially of pure carbon, crystallized in the isometric system with a:

• Hardness of 10

• Specific gravity of approximately 3.52

• Refractive index of 2.42

If the stone does not meet the above definition for a diamond, you may not list your item in the Diamond or Fine Jewellery category and you may not use the word "diamond" in your listing title or description. You should describe the actual material the stone is made of, such as:

• Plastic

• Glass

• Cubic Zirconium

• Diamonique

• Briolite

• Moissanite

• Rhinestone

• Strontium Titanate

• Quartz

When listing a laboratory-grown stone that has the same mineral composition as a naturally mined diamond, the word "diamond", whenever it appears (in the item title and description), may only be used if the word is immediately preceded or followed by any one of the following eight terms, spelled out in its entirety and in equal visibility:

• "created"

• "lab-created"

• "man-made"

• "synthetic"

• "manufactured"

• "laboratory-grown"

• "laboratory-created"

• "[manufacturer-name]-created"

Gemstones

Authentic gemstones that have been enhanced can be listed in the Fine Jewellery category as long as you select the appropriate Main Stone Treatment option under Item Specifics.For treated gemstones, you will also need to clearly specify in your listing if the treatment:

• Is not permanent

• Creates special care requirements

• Has a significant effect on the stone's value

Manufactured stones can be listed only in these categories:

• Fashion Jewellery

• Engagement & Wedding

• Categories especially designated for them (for example, "Pearl, Imitation" or "Simulated Stones")

• Other

You may not list manufactured stones in the Fine Jewellery category or any categories for genuine gemstones such as Opal, Ruby, Pearl, and so on.If the mineral composition of the stone or gem is different from the natural mineral, you need to clearly identify the item as such throughout your listing. So, for example, you will need to use words like "imitation pearl" or "simulated ruby" in both your listing title and your description.

Loose beads

Sellers of loose beads may only list these items in the Loose Beads category.

Precious metals

A precious metal is defined as one of these:

• Gold of 9 karats or higher (10 karats or higher if traded internationally)

• Silver of 925 parts per 1000 pure silver or above

• Platinum group metals of 850 parts per 1000 pure platinum or above

Solid precious metals are not plated and are not filled. If your item doesn't qualify as a precious metal, be sure to follow these guidelines:

• Do not list plated and filled metals in the Fine Jewellery category

• List your item in the Plate/Fill category that matches your product, or choose the "Plated" or "Filled" option under Item Specifics

• Clearly describe the nature of the precious metals throughout your listing. You can, for example, use the word "gold-plated" as long as the alloy used for the plating is 9-karat gold or higher (10 karats or higher if traded internationally). You'll also need to include the qualifying word, such as "plated" or "filled", in every mention of the word "gold" in your listing description

• It's okay to use abbreviations (such as "gf" for gold-filled, "gp" for gold-plated, or "gep" for gold-electroplated) in your listing title

As a seller, if you do not know an item's composition, eBay strongly recommends that you learn this information before listing the item in order to avoid misleading potential buyers. Items without this information should be listed in the Other category or categories designated for those materials, but never in the category for Fine Jewellery, Diamonds, Gemstones, or Precious Metals.

To improve the shopping experience on eBay, sellers listing jewellery products in Australia are required to call out important details about those items in their listing titles and descriptions. This policy is in place to make sure potential buyers have a clear understanding of what they're buying before committing to purchase the item.