Australian Black Opal Necklace /

A mysterious Australian black opal takes center stage, complemented by two color-changing sapphires reminiscent of different starry skies, and a sapphire evoking a golden star-dusted sea. Three nebulae paired with one enigmatic black hole. Australian Opal: 3.56 ct Top Right Color-Changing Sapphire: 1.17 ct Bottom Left Color-Changing Sapphire: 0.85 ct Sapphire: 1.015 ct Pendant size including bail: Approx. 59mm x 32mm **Please carefully check if the "chain length" and "style" meet your needs. If you mistakenly choose incorrectly, you will be responsible for the round-trip shipping costs for exchanges.** **Important Notes for First-Time Wearers of Silver Jewelry** ◮ Avoid wearing silver jewelry while bathing in hot springs or swimming. The salt in seawater and the acidity of rainwater can mildly corrode metal and cause oxidation. Sulfur in hot springs will cause jewelry to blacken and undergo sulfidation. If exposed to these substances, rinse the silver jewelry with clean water and dry it thoroughly. ◮ Human sweat, intended for antibacterial purposes, has a slightly acidic pH of 4. Studies show that prolonged contact can corrode metals and accelerate alloy oxidation. Our jewelry is not plated with other materials on the surface, making it more susceptible to corrosion and breakage when enclosed by sweat. However, **not everyone's sweat will cause breakage; if you have had similar experiences, please be extra mindful.** To maintain the pristine condition of your silver jewelry, it is recommended to wash and dry it after wearing it and sweating, ensuring it remains dry. ◮ Products containing chemical additives can also cause silver jewelry to erode. Any product with chemical additives can accelerate the oxidation of jewelry. Common examples include: skincare products, sunscreen, cosmetics, perfumes, essential oils, cleaning agents, chlorine in swimming pools, etc. If you habitually wear perfume, it is recommended to apply perfume first, then wear jewelry, and avoid direct contact between jewelry and perfume. ◮ Develop good habits for use and storage. Taiwan's climate is humid, and the air moisture content is relatively high. When not wearing the jewelry, be sure to wipe off sweat and oil with a dry cloth, and store it in a ziplock bag to prevent air exposure and maintain dryness. Store jewelry pieces separately to avoid friction and surface scratches. ◮ About the Sulfidation of Silver Jewelry 925 sterling silver is prone to oxidation and turning yellow or black when exposed to air; this is a natural reaction of silver jewelry, much like pure silver reacting to hot spring water. Gently wiping with a silver polishing cloth will restore its original luster. However, in hard-to-reach areas like the crevices of a silver chain, the silver may appear slightly darker. The technique of sulfidation involves directly oxidizing 925 sterling silver jewelry to create a rustic, vintage, darkened effect, enhancing contrast and adding depth. This is more even and aesthetically pleasing than natural air oxidation, and the crevices do not require extra cleaning. Frequent wear, with the friction from clothing, can help maintain the jewelry's polished appearance. ◮ About Us To present the highest quality, each of our creations is meticulously crafted through repeated inspection, refinement, and polishing, with absolutely no allowance for porosity or imperfections. To ensure structural integrity, we employ repeated forging techniques, giving our silver jewelry a unique luster and texture. Plated protective films have a high probability of peeling off with prolonged wear, posing risks to both the environment and the wearer, and obscuring the natural luster of silver. Therefore, our creations are never plated. We invest significantly more time in the details. If you have the opportunity to purchase one of our pieces, you will notice that its oxidation rate is considerably slower compared to most other silver products, and its luster is distinct. We hope you find your unique piece of jewelry here.