( rejigs 3rd person present) ( rejigging present participle) ( rejigged past tense & past participle ) If someone rejigs an organization or a piece of work, they arrange or organize it in a different way, in order to improve it. ...adjustments needed to rejig the industry.
AGI on jewelry refers to the Accredited Gemological Institute, and when it appears on a piece of jewelry, it means that it is what it claims to be. The AGI has accredited it as such. If it is on a piece with a diamond, the diamond is genuine.
If there is an official stamp of some sort on the jewelry, then it's highly likely that it is real sterling silver. Using a soft white cloth, rub a small part of the jewelry. If black marks appear on it, then your sterling silver pendant is true silver.