Lab-grown diamonds are available in Parramatta, Australia, through various local jewelry stores and online retailers. Parramatta is a vibrant city with a range of options for purchasing lab-grown diamonds. Here are some avenues to explore when looking for lab-grown diamonds in Parramatta:

1. Local Jewelry Stores: Visit jewelry stores in Parramatta and inquire about their collection of lab-grown diamonds. Some jewelers may carry lab-grown diamonds or be able to order them for you. Ask about the diamond's origin, certifications, and any other relevant details. It's a good idea to call ahead to confirm if a specific store offers lab-grown diamonds.

2. Online Retailers: Many reputable online  lab grown diamonds guides retailers specialize in lab-grown diamonds and offer shipping to Parramatta. These online platforms provide a wide range of lab-grown diamond options. Read customer reviews, check for certifications, and compare prices before making a purchase. Look for retailers that provide transparent information about the quality and origin of their diamonds.

When purchasing lab-grown diamonds, it's advisable to look for certifications from recognized gemological laboratories such as the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). These certifications ensure the quality and authenticity of the lab-grown diamonds.

Please note that availability and specific retailers may change over time. It's recommended to research and contact local jewelers or online retailers directly for the most up-to-date information on lab-grown diamonds in Parramatta.