{"title":"三角形蓝宝石裸石","description":"\u003ch2\u003e三角形切工\u003c\/h2\u003e\u003cp\u003e三角形（trilliant，亦称trillion）的轮廓有三条边，刻面多为明亮式，边线可以是直边，也可以略向外弧。它的几何感强，常用作三石戒指两侧的配石，也可以单独用作吊坠或戒指主石。\u003c\/p\u003e\u003ch2\u003e挑选要点\u003c\/h2\u003e\u003cp\u003e三角形对对称性要求较高：可留意三条边是否等长、三个角是否完整。尖角较薄，镶嵌时通常以V形爪或包角保护。作为成对配石时，请留意两颗的尺寸和颜色是否相近，可参考\u003ca href=\"\/zh-hans-fr\/collections\/matched-gemstone-pairs\"\u003e配对宝石\u003c\/a\u003e。其他非常规形状见\u003ca href=\"\/zh-hans-fr\/collections\/fancy-cut-sapphires-usa\"\u003e异形切工蓝宝石\u003c\/a\u003e。\u003c\/p\u003e\u003ch2\u003e加热、报告与查询\u003c\/h2\u003e\u003cp\u003eCrescent Gems自2000年起在斯里兰卡采购原石，多数宝石由自家工坊切磨，详见\u003ca href=\"\/zh-hans-fr\/pages\/about-crescent-gems-all-you-need-to-know\"\u003e关于我们\u003c\/a\u003e。每颗宝石的页面都会注明是否经过加热；如报告列有处理项目，我们会照报告原文列出。较高价位的宝石附有美国宝石研究院（GIA）报告，页面会显示该宝石所附的报告。\u003c\/p\u003e\u003cp\u003e如需查询某颗宝石，或希望我们为它拍摄一段视频，请发电子邮件至\u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e，我们以中文回复。宝石从美国经FedEx或UPS全额保险寄出：订单金额499美元及以下每单运费60美元，超过499美元免运费；享14天退款保证（美国境外退货运费由买家承担）。\u003c\/p\u003e","products":[{"product_id":"1-21-ct-trillion-shape-blue-sapphire","title":"1.21 ct Natural Heated Blue Sapphire – Trillion (Trilliant) Cut","description":"\u003cp\u003eA natural 1.21 carat blue sapphire in a trillion (trilliant) cut, heat treated. Trillion-cut blue sapphire is one of the less common format combinations in the market — most blue sapphires are cut oval or cushion for weight efficiency, so a true trillion represents a deliberate shape choice. The three-sided geometric outline of the trillion produces a face-up footprint significantly larger than the carat weight suggests, and the equal-sided triangular form has a bold, architectural character that stands apart from conventional engagement ring shapes.\u003c\/p\u003e\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/zh-hans-fr\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"This 1.21 ct trillion-cut blue sapphire combines a dark, richly saturated Ceylon blue with a step-cut triangular silhouette — a shape combination genuinely uncommon in the blue sapphire market, where most material is cut oval or cushion.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView the stone in daylight and under warm indoor light —\u003c\/strong\u003e dark saturated blues can read almost inky under low light, so confirm the tone works in the lighting where you'll wear it most.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAt 7.05 x 6.30mm with three pointed corners,\u003c\/strong\u003e this stone requires a setting with V-prong or protected corner tips — standard for trillion cuts but worth confirming with your jeweler before mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen comparison-shopping,\u003c\/strong\u003e confirm heat treatment disclosure and lab source in writing, and ask whether any comparable stone offered is a true trillion or a modified triangular cut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh the scarcity noted above,\u003c\/strong\u003e since a true trillion-cut center stone in a dark, saturated blue is harder to source than an oval or cushion of the same color and weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/blue-sapphire-buyers-guide\"\u003eBlue Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/how-to-care-for-a-sapphire-engagement-ring-cleaning-storage-and-what-to-avoid\"\u003eHow to Care for a Sapphire Engagement Ring\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42665947758659,"sku":"CG8228","price":1400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8228_image-1.jpg?v=1778351201"},{"product_id":"0-42-ct-trillion-purple-sapphire-ceylon-unheated","title":"0.42 ct Natural Unheated Violet Sapphire – Trillion (Trilliant) Cut | AGCL Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 0.42 carat violet sapphire in a trillion (trilliant) cut, completely unheated, documented on AGCL Report #M262743. The trillion is an equal-sided triangular shape that creates a larger face-up appearance than oval or round equivalents of the same weight, and in violet sapphire, the three-sided outline creates a striking geometric accent. At 0.42 carats, this stone is well-sized for earring accent positions, three-stone ring side stones, and small pendant designs where the trillion's distinctive outline adds visual character.\u003c\/p\u003e\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/zh-hans-fr\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"A trillion cut on unheated violet sapphire is a combination I don't see often — most trillion material goes to blue or heat-treated stones, so finding this 0.42 ct at 4.50 x 4.46 x 2.85 mm with clean, even color and no thermal history made it an easy stone to select.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the pointed corners in person or on video.\u003c\/strong\u003e Trillion cuts have three vulnerable corners — ask to see close-up video of the culet area before committing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan a protective setting.\u003c\/strong\u003e At 4.50 x 4.46 x 2.85 mm, this trillion suits prong or bezel settings with corner protection for ring use, or a secure bail for pendant use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk for the underlying lab report, not a summary.\u003c\/strong\u003e AGCL Report #M262743 documents this stone's treatment status independently — request it when comparison-shopping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh the cut against availability.\u003c\/strong\u003e Trillion-cut violet sapphire in unheated quality is uncommon; this stone's combination of shape, color, and treatment status is not easily replaced at this weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/violet-sapphires-the-rare-beauty-of-royal-purple-elegance\"\u003eViolet Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/violet-sapphires-the-rare-beauty-of-royal-purple-elegance\"\u003eViolet vs Purple vs Blue Sapphire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43009085308995,"sku":"CG8386","price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_8daca6e3-adbf-4f78-ba79-434e056a603b.jpg?v=1778308043"},{"product_id":"0-61-ct-trillion-violet-sapphire-unheated","title":"0.61 ct Natural Unheated Violet Sapphire – Trillion Cut | AGCL Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 0.61 ct Violet Sapphire cut in a trillion shape, completely unheated, documented on AGCL Report #M263121. This Violet Sapphire's three-sided, equal-length outline creates a larger face-up appearance than the carat weight alone suggests, making it an efficient way to display violet color at a compact size. Unheated status means the color is entirely natural — no thermal treatment has been used to modify or enhance the hue of this Violet Sapphire.\u003c\/p\u003e\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"\/zh-hans-fr\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"The trillion cut on this 0.61 ct stone earns its keep — the flat triangular face genuinely reads larger and shows more color per carat than an oval or round of the same weight, which matters more in violet sapphire than in most colors since the hue itself is already uncommon at this size.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut consideration:\u003c\/strong\u003e Trillion-cut stones display sharp corners that need protective prong or bezel placement in a setting — discuss corner protection with your jeweler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity expectations:\u003c\/strong\u003e Graded Slightly Included — inclusions may be visible to the unaided eye in certain lighting; request close-up photos if clarity is a priority.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScale for your design:\u003c\/strong\u003e At 5.17 x 5.03mm, this stone reads as a compact accent or side stone rather than a solitaire center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin disclosure:\u003c\/strong\u003e Sri Lanka (Ceylon) origin is the store's own assessment and is not addressed by the AGCL report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/violet-sapphires-the-rare-beauty-of-royal-purple-elegance\"\u003eViolet Sapphire Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-an-unheated-sapphire\"\u003eUnheated Sapphire Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/how-cut-affects-sapphire\"\u003eHow Cut Affects a Sapphire\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans-fr\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eSapphire Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43035172896835,"sku":"CG8398","price":183.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_8d6cfd39-e09c-43a2-8de6-bd93a7aa0517.jpg?v=1778308083"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/1112023001_8d6cfd39-e09c-43a2-8de6-bd93a7aa0517.jpg?v=1781260427","url":"https:\/\/crescentgems.com\/zh-hans-fr\/collections\/trilliant-sapphires-triangular-loose-stones.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}