{"title":"Oregon Sunstone","description":"\u003cp\u003eOur current selection of Oregon sunstone — an American feldspar whose copper inclusions can create a glittering sun-spangle and remarkable color.\u003c\/p\u003e\u003cp\u003eEach stone is selected individually and disclosed in full, and rated stones carry an \u003ca href=\"\/pages\/otzera-50\"\u003eOtzera 50\u003c\/a\u003e score judged against their own species.\u003c\/p\u003e","products":[{"product_id":"sunstone-otz-2026-01630","title":"3.20 ctw Matched Oregon Sunstone Pair","description":"\u003cp\u003eRich sunset color gives this matched pair of Oregon sunstones their character. Together the two stones weigh 3.20 carats, with each stone approximately 1.60 ct, and their cushion-shaped modified brilliant cuts are exceptionally well calibrated in size and outline.\u003c\/p\u003e\n\n\u003cp\u003eAcross the pair, orange, golden yellow and warm brown tones shift through the facets, creating the multicolored appearance prized in fine Oregon sunstone. Both stones are clean to the unaided eye, with only minor inclusions visible under magnification. One stone has a small chip at a corner, which is reflected in the Otzera evaluation and disclosed here.\u003c\/p\u003e\n\n\u003cp\u003eFor a collector or jewelry project, the strongest attribute is the pairing itself: two substantial, closely matched Oregon sunstones with complementary color and proportions.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003e\nTotal weight: 3.20 ctw (1.60 ct each)\u003cbr\u003e\nApprox. dimensions per stone: 8.08 × 5.95 × 4.20 mm\u003cbr\u003e\nOrigin: Oregon, USA\u003cbr\u003e\nTreatment: None\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eOregon sunstone is a natural, untreated American gem. Its color and copper shimmer are exactly as they formed.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489570551,"sku":"OTZ-2026-01630","price":1779.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01630-d.jpg?v=1787067162"},{"product_id":"3-73-ctw-matched-oregon-sunstone-pair-sun-spangle","title":"3.73 ctw Matched Oregon Sunstone Pair — Sun-Spangle","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA particularly attractive matched pair of Oregon sunstones totaling 3.73 carats. Both stones show a generous sprinkling of coppery sun-spangle inclusions, intentionally oriented beneath the table so they catch and glisten in direct light. The close match in size, shape and color makes this pair especially compelling for earrings or a coordinated jewelry design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Oregon Sunstone Pair\u003cbr\u003eSpecies: Feldspar\u003cbr\u003eTotal Weight: 3.73 ctw\u003cbr\u003ePieces: 2\u003cbr\u003eShape \/ Cut: Round Modified Brilliant\u003cbr\u003eMeasurements: 7.98–8.13 × 5.48–5.50 mm\u003cbr\u003eColor: Peach-Pink with Coppery Sun-Spangle\u003cbr\u003eOrigin: Oregon, USA\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e43 — Signature\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 88%\u003cbr\u003eThe matched presentation and visible sun-spangle effect are the defining collector attributes of this pair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eOregon sunstone is a natural, untreated American gem. Its color and copper shimmer are exactly as they formed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts, ultrasonic cleaning and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the pair's identifying details, Oregon origin and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51222639935735,"sku":"OTZ-2026-01722","price":1993.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01722-oregon-sunstone-pair-1.jpg?v=1790479917"},{"product_id":"5-11-ct-oregon-sunstone-triangular-modified-brilliant","title":"5.11 ct Oregon Sunstone — Triangular Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn exceptional 5.11 ct Oregon sunstone with an uncommon triangular modified brilliant cut, vivid face-up performance and unusually strong collector scale. The stone shows flashes of green at certain angles and a subtle rainbow streak from the reverse when the light catches it correctly, adding to its highly individual character.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Oregon Sunstone\u003cbr\u003eSpecies: Feldspar\u003cbr\u003eWeight: 5.11 ct\u003cbr\u003eShape \/ Cut: Triangular Modified Brilliant\u003cbr\u003eMeasurements: 13.42 × 11.78 × 7.90 mm\u003cbr\u003eOrigin: Oregon, USA\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 46\/50 — Exceptional\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts, ultrasonic cleaning and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin, treatment status and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51233274593527,"sku":"OTZ-2026-01743","price":7665.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01743-1.jpg?v=1790712071"},{"product_id":"2-66-ct-oregon-sunstone-cushion-modified-brilliant","title":"2.66 ct Oregon Sunstone — Cushion Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA bright and lively 2.66 ct Oregon sunstone with a distinctive cushion modified brilliant cut and a fine distribution of characteristic sun-spangle inclusions. The combination of strong color, energetic light return and unusual cutting gives this stone a particularly individual collector identity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Oregon Sunstone\u003cbr\u003eSpecies: Feldspar\u003cbr\u003eWeight: 2.66 ct\u003cbr\u003eShape \/ Cut: Cushion Modified Brilliant\u003cbr\u003eMeasurements: 9.05 × 9.00 × 5.87 mm\u003cbr\u003eOrigin: Oregon, USA\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 44\/50 — Signature\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts, ultrasonic cleaning and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin, treatment status and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51233274757367,"sku":"OTZ-2026-01744","price":3990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01744-1.jpg?v=1790712083"}],"url":"https:\/\/otzera.com\/collections\/oregon-sunstone.oembed","provider":"Otzera","version":"1.0","type":"link"}