Goldstone is a popular man-made, glittering glass material, often mistaken for a natural mineral, characterized by shimmering metallic inclusions of copper, cobalt, or manganese suspended in colored, molten silica. Known for its sparkle, it is commonly used in jewelry, beads, and carvings, typically appearing in reddish-brown, blue, or green varieties. Key Facts About Goldstone: Origin: Often believed to be invented in 17th- century Italy (Venice), though sometimes attributed to older Persian techniques. Manufacturing: Created by heating silica, metallic oxides, and other ingredients in a low-oxygen, reducing atmosphere, which allows crystals to form as it cools. • Appearance: Contains countless tiny, reflective metallic crystals that look like starry night skies (especially in blue goldstone). About this item: Country of origin: India Main Stone Creation: Man-made Goldstone Main Stone Shape: As per photos Main Stone: Goldstone Treatment: NA Secondary Stone: Garnet, Pink Tourmaline Closure: T-Bar Brand: NA Certification: NA Channel-Set Handmade Secondary stone creation: lab-created Metal : hallmarked 925 Sterling Silver. Please note the sizes of the item listed and the description, photos are not the actual size of the item. Photos are enlarged and close ups to show the detail of the item listed. Lighting used to take photos can sometimes alter the colour in the photos and not correspond exactly to the true colour of the item, but we try to minimise differences in colour as much as possible. No extra tests are performed to obtain gemologist certificates, it is a very expensive exercise and will increase the cost price of the item tremendously. No returns are accepted, see all photos before placing a bid. Also note the delivery costs comprise of postage, packaging, insurance and transport and are non refundable. If you are not satisfied with the delivery costs, then please do not bid on the item. If you do bid, then you agree to these costs and I would greatly appreciate it if you do not leave a negative review based on this. Parcel will be sent by registered mail and tracking number supplied. Once the parcel is sent, I cannot control the delivery time or problems that might arise during this proce but if there are any problems, I will do my best to assist in any way possible. Deliveries to some countries may take 3 weeks or longer, please keep this in mind when placing a bid. Thank you.