{"product_id":"the-dorothy-necklace","title":"The Dorothy Necklace","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e14k Yellow Gold | 5.22g | Mozambican Paraiba Tourmaline 13.35ct Pear | 2mm Sri Lankan Sapphire (bail) | Swiss Certified\u003c\/strong\u003e Treatment: None (unheated) | Origin: Mozambique \u003cem\u003eSize: Contact before purchasing to confirm fit.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eParaiba tourmaline is among the rarest gemstones on earth — not because of scarcity alone, but because of chemistry. This stone owes its extraordinary neon saturation to trace amounts of copper and manganese substituting into the elbaite tourmaline crystal structure, a geological coincidence so specific that copper-bearing elbaite has been confirmed in only three regions worldwide: Paraíba state in Brazil, Nigeria, and Mozambique. No heat treatment, no irradiation, no clarity enhancement can replicate this color in any other gem family. What you are seeing is physics: Cu²⁺ ions absorbing strongly in the red and yellow wavelengths (~600–700nm) and transmitting blue-green light with an intensity that persists even under low illumination — a property arising from the unusually high absorption cross-section of copper in this crystal host.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAt 13.35ct this stone is a museum-quality specimen — and under magnification its internal world is as extraordinary as its color. A dense population of fine needle inclusions oriented along multiple crystallographic directions creates a fibrous internal texture throughout the body, consistent with actinolite, tremolite, or ludwigite needles — amphibole and borate minerals that crystallized simultaneously with the tourmaline host in the same Mozambican metamorphic environment. These are syngenetic inclusions: minerals that grew alongside the tourmaline rather than being trapped after the fact, their orientation locked to the crystallographic axes of the host crystal.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe rainbow inclusions that give this pendant its name are iridescent flashes of blue, green, gold, and full spectral color visible throughout the stone's interior — produced by thin-film interference on the surfaces of partially healed fractures and platy mineral inclusions whose dimensions approach the wavelength of visible light. This is structural color: no dye, no coating, no treatment. The same physics that produces color in soap bubbles and butterfly wings, operating on the natural internal surfaces of a copper-bearing tourmaline crystal that formed in a Mozambican metamorphic terrane. The rainbow is real, permanent, and geological.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA curved internal structure visible in the stone's lower portion records a growth-related feature — a zone of higher inclusion density marking a pause or compositional shift during crystal growth, its curved geometry reflecting the actual shape of the tourmaline crystal face at that moment, millions of years ago.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eTourmaline is strongly pleochroic — it transmits different colors along different crystallographic axes. The color variation visible across different viewing angles and lighting conditions, from pure copper teal-green to yellow-gold in zones of different orientation, is the stone's natural optical character expressing itself through its inclusion landscape.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA 2mm Sri Lankan sapphire set into the bail completes the piece — selected for its teal-green to yellowish color character that mirrors the Paraiba's own pleochroic color range, creating a chromatic conversation between the world's rarest copper-bearing tourmaline and a complementary corundum from the Indian Ocean's most storied sapphire source.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eOne of one. This color, this weight, this origin, this internal world. Never reproducible.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePaired with a 1.3mm Drawn Rolo Chain or 1mm Adjustable Diamond-Cut Franco Chain\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eSwiss Certificate for Pariaba comes with purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bravais Fine Jewelry","offers":[{"title":"20\" \/ Up to 22\"","offer_id":44152176214099,"sku":null,"price":11500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/9325\/3459\/files\/Untitled-300_949964dd-43b5-45a1-849a-480e2e0ab048.jpg?v=1779559519","url":"https:\/\/bravaisfinejewelry.org\/products\/the-dorothy-necklace","provider":"Bravais Fine Jewelry","version":"1.0","type":"link"}