Different Scale Units

Grams (g):

• Grams are the traditional unit of measurement used in the majority of weighing tasks. Commonly used in all industries for weighing in small increments.
• 1 gram = 1000 milligrams.
• Used in weighing metals.

Carat (ct) vs Karat (kt):

• A metric “carat” is defined as 200 milligrams. Each carat is subdivided into 100 ‘points.’ This allows very precise measurements to the hundredth decimal place.
• Karat is a unit of measurement used when weighing jewellery, precious metals and Carat  is for gemstones and diamonds.
• All else being equal, diamond price increases with diamond carat weight because larger diamonds are rarer and more desirable.
• Used for weighing precious & semi-precious.

Pennyweight (dwt):

• The troy weight units are used to measure weights of precious metals, gemstones, and powder.
• One pennyweight contains approximately 7.9 karats.
• Used for weighing precious metals.

Ounces (oz): 

• An Ounce is a unit of measurement used in the Imperial system. Ounces remain popular as a weighing unit in the UK for cooking and in food recipes.

Grain (gn):

• One grain is equal to exactly 64,79891mg & 1g is equal to about 15,43236gn.
• The grain was the earliest mass unit, & it’s also part of the Troy, Avoirdupois, & Apothecaries’ weight systems.
• The grain is used to measure the mass of bullets, gold foil used in dentistry & other propellants.