While a specific, detailed scent profile for "Golden Opal" is not widely available, the name itself suggests a luxurious and rich fragrance. The term "Golden" often points to warm, rich, and perhaps amber or vanilla notes, while "Opal" can imply a multifaceted and elegant scent. In general, fragrances with this kind of name often fall into the oriental or woody family. They might contain notes like:

Top Notes: A hint of citrus, like bergamot, to provide a fresh opening.

Heart Notes: Warm spices like cardamom or cinnamon, or maybe a floral element like jasmine or rose.

Base Notes: Deep and long-lasting notes such as amber, musk, sandalwood, or vanilla to give the fragrance its depth and longevity.

Key Features and Usage

Eau de Toilette (EDT): This indicates that the fragrance has a moderate concentration of perfume oils. It's designed to be a lighter scent than an Eau de Parfum and is typically suitable for daily wear.

100ML: This is a standard and popular size for a personal fragrance, providing a good amount of product for regular use.

Unisex or Men's Fragrance: While some John Allen fragrances are marketed as unisex, others are specifically for men or women. Given the name "Golden Opal," it could be designed as a masculine or a unisex scent.