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Diamond Terms P

~ Diamond Terminology from A to Z ~

There are thousands of terms being used in today's jewelry industry. Some common knowledge, others are obscure and baffling. We've created a database of terminology from A to Z to make it easy, and of course if you still have questions, please do not hesitate to send us an email or give us a call.


P1, P2, P3

The European way of saying I1, I2, or I3


Palladium is a soft silver-white metal that resembles platinum. It is the least dense and has the lowest melting point of the platinum group metals. Used mainly in catalytic converters and other machinery designed to create energy, or change harmful substances to harmless substances. Palladium is very rare, costs about as much as 18K gold on the market, and is a great substitute to white gold or platinum. No gold is actually white gold, you have to chemically treat the yellow gold to get the appearance of white gold. Overtime this chemical treatment wears off and starts to return to it's natural color of yellow, or it loses the majority of it's luster and shine. Palladium is naturally white gold looking, it's hypo-allergenic, rare, looks great, and can handle impact well. All these are great reasons why jewelry manufacturers started Palladium Engagement Rings.

Parcel, Parcels

The paper used to transport single loose diamonds, or in fact many loose diamonds. You place the loose diamond in middle of a fold and fold the rest of the paper around it, and amazingly enough, it's secure and won't fall out.

Pave, Paved Diamonds

A complete coverage of particular part of jewelry by any gem or diamond. Ex. The diamond engagement ring has a paved diamond band. Very little diamonds (melee diamonds) all put together to form one surface.


A piece of jewelry that hangs from a chain worn around the neck. Often used with diamonds, or any other vividly colored gem. It can also refer to the part of pocket watch that suspends it from the chain or rope.


A very rare fancy color for a diamond. If untampered with a vivid pink diamond can command a great deal of money!


A tiny hole or opening. Where a black spot is usually referred to as a carbon spot, a Pit is usually referred to as a white dot or inclusion. Usually pin prick size in shape.


The a very rare and valuable precious metal used for jewelry. Silver-Gray in appearance, and is worth about twice what 18K gold goes for. Platinum Engagement Rings are hypo allergenic, very strong (dent resistant), never loses it's shine and luster.

Polish Lines

Tiny Parallel lines left by polishing a diamond or gem. Usually this is caused by an irregular gouge or surface abnormality on the polishing device. The polish lines are the only thing that separates an IF diamond from a FL diamond. Read more on the Difference between Flawless and Internally Flawless Diamonds.

Polish Mark

When you see a cloudy mark or a completely cloudy table on the surface of a diamond this is called a polish mark. It's caused by excessive heat during the polishing process. This can also be caused by abnormal surface flaws on the polishing devices which can cause excessive heat as well. All in all a polish mark is a cloudy spot on the surface of a diamond.

Princess Cut

Usually a square fancy cut for a diamond. It may be found in other gem cuts as well, but mostly used in diamonds. It's considered the second most valuable fancy cut in diamonds right behind Round Brilliant Cuts.