16.61 Carat Natural Prasiolite – Cushion-Cut Green Quartz from Ceylon

16.61 Carat Cushion-Cut Prasiolite from Ceylon Soft sage-green color, rounded corners, and a generous cushion shape give this 16.61 carat gemstone a quietly distinctive presence. Its broad facets catch the light in pale green reflections, making it a beautiful starting point for a statement pendant or a personal jewelry design. Prasiolite is green quartz, commonly sold under the trade name “green amethyst.” This earth-sourced gemstone from Ceylon, now known as Sri Lanka, has been cut and polished into a cushion shape that pairs gentle curves with a substantial silhouette. Whether you are choosing a loose gemstone for bespoke jewelry or adding to your collection, it offers plenty of room to create something individual. Your Gemstone at a Glance Details of this individual loose gemstone Gemstone Natural prasiolite (green quartz), commonly called green amethyst Origin Ceylon (Sri Lanka) Weight 16.61 carats Dimensions 17.35 × 14.67 × 10.03 mm Shape and cut Cushion cut, faceted Color Light sage green Clarity IF (internally flawless), as graded by Sapphire Pal Treatments None, as declared by Sapphire Pal Authenticity Gemstone authenticity confirmation included Shipping Free, fast, secure, insured worldwide shipping from Australia A Cushion-Cut Green Gemstone for Your Custom Pendant or Ring A single-stone pendant would let this prasiolite's soft green color take center stage. Yellow gold can bring warmth to the design, while white gold or silver can complement its cool, understated tones. A horizontal setting would emphasize the cushion's broad outline; a vertical setting would give it a more elongated look. For something bolder, consider a cocktail ring or a bespoke brooch. Jewelry makers should design around the full measurements, particularly the 10.03 mm depth, and check any semi-mount for fit before setting. For a ring, a protective design and careful wear will help safeguard the stone from knocks and scratches. You can also enjoy it as a loose faceted gemstone in your collection while you explore jewelry designs at your own pace. Let Us Help Create Your Custom Jewelry Would you like to turn this stone, or another of our natural gemstones, into a piece made just for you? Message us through live chat, email, or WhatsApp. Share your design ideas, preferred metal, and budget, and we will be happy to provide a reasonably priced quote. Contact Sapphire Pal to discuss your jewelry ideas. Settings and jewelry-making costs are quoted separately from the loose gemstone. Earth-Sourced Gemstones, Australian Service Established in 2014, Sapphire Pal is an Australian-based gem merchant with over 60 years of family heritage in the natural gemstone trade. Our direct sourcing includes our own mines and trusted dealers, connecting gem collectors and jewelry lovers with earth-sourced gemstones. Your stone includes gemstone authenticity confirmation and is dispatched from Australia with free, fast, secure, insured worldwide shipping. Learn more about Sapphire Pal and our family heritage. Helpful Advice Before You Choose Explore our first-time gemstone buyer guide for an introduction to buying loose gemstones. Our natural sapphire and colored gemstone buying guide and gemstone education center offer more information as you plan your purchase. Please ask us for additional photos or a video if you would like a closer look. Caring for Your Prasiolite Clean gently with lukewarm, soapy water and a soft brush, then rinse and dry with a soft cloth. Avoid heat, steam cleaning, sudden temperature changes, and prolonged intense sunlight. Store separately from other jewelry, and remove rings before exercise, gardening, or heavy household work. Please note: This listing is for one loose gemstone; a jewelry setting is not included. Color may vary slightly across screens and lighting conditions. Dimensions and weight are measured carefully; minor variations are normal for natural gemstones. Close-up photos magnify details and do not show actual size. Please use the listed measurements when planning a setting. Delivery times vary by destination and customs processing.