{"title":"GIA Certified Tanzanite Gemstones","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eShop with confidence and discover our exquisite collection of GIA certified tanzanite gemstones, sourced for their exceptional colour, brilliance, and rarity. Each gemstone is independently graded by the prestigious Gemological Institute of America (GIA), ensuring authenticity, quality, and confidence with every purchase. From vivid royal blue to rich violet-blue hues, our natural tanzanites are hand-selected for superior saturation, clarity, and cut. \u003cmeta charset=\"utf-8\"\u003eShop with confidence knowing every GIA certified tanzanite gemstone is backed by professional gemological documentation\u003c\/p\u003e","products":[{"product_id":"21-24-ct-oval-tanzanite-gemstone-gia-certified","title":"21.24 ct Oval Tanzanite Gemstone – GIA Certified Tanzanite - VB 6\/6","description":"\u003cp\u003eAn exceptional 21.24 carat oval tanzanite of commanding presence and remarkable depth of color. This is a true statement stone — large enough to fully express the rich, velvety saturation that only fine tanzanite above 5 carats can achieve.\u003c\/p\u003e\n\u003cp\u003eGIA certified, confirming its identity as natural tanzanite, this gemstone displays a deeply saturated blue-dominant hue with flashes of violet under changing light — the signature pleochroism that defines top-tier material.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis stone sits within the highest color range and would be classified as VB 6\/6 using gemological grading standards, or AAA+ \/ Heirloom quality in retail terminology — representing the finest top 1% of all tanzanite production. Added peace of mind is provided through the additional security of an accompanying GIA certificate.\u003c\/p\u003e\n\u003cp\u003eA rare, investment-level tanzanite gemstone with both size and colour working perfectly together.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424018944372,"sku":"21.23 oval","price":14868.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/21_carat_tanzanite_oval.png?v=1779187881"},{"product_id":"8-16-ct-oval-tanzanite-gemstone-gia-certified","title":"8.16 ct Oval Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA beautifully proportioned 8.16 carat oval tanzanite, selected for its strong, even saturation and lively brilliance. Stones in this size range begin to show the deeper, more desirable colour profiles that define fine tanzanite.\u003c\/p\u003e\n\u003cp\u003eAccompanied by a GIA certificate, this gemstone presents a rich blue-dominant body colour, shifting subtly with light to reveal violet undertones.\u003c\/p\u003e\n\u003cp\u003eGraded at the very top end of the colour spectrum, this stone aligns with VB 6\/6 quality and can equally be described as AAA+ or heirloom grade — placing it within the top 1% of tanzanite available.\u003c\/p\u003e\n\u003cp\u003eA refined balance of size, colour, and brilliance.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424027595124,"sku":null,"price":5304.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/tanzainte_oval_Gia_certified_vb_6_6.jpg?v=1778639754"},{"product_id":"6-16-ct-emerald-cut-tanzanite-gemstone-gia-certified","title":"6.16 ct Emerald Cut Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA refined 6.16 carat emerald cut tanzanite, showcasing clean lines and elegant step-cut faceting. This cut highlights the clarity and depth of the stone, allowing its colour to appear calm, rich, and glass-like.\u003c\/p\u003e\n\u003cp\u003eFully GIA certified, the gemstone exhibits a distinctly blue-dominant hue with subtle violet undertones, enhanced by the structured faceting of the emerald cut.\u003c\/p\u003e\n\u003cp\u003eThis level of colour saturation places it firmly in the VB 6\/6 range, also recognised as AAA+ or heirloom quality — within the top 1% of all tanzanite.  \u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424063115636,"sku":null,"price":3880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/6.16_tanzanite_emerald_cut.jpg?v=1779188958"},{"product_id":"8-44-ct-emerald-cut-tanzanite-gemstone-gia-certified","title":"8.44 ct Emerald Cut Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eAn impressive 8.44 carat emerald cut tanzanite with strong saturation and excellent clarity. The larger size allows the colour to deepen further, giving the stone a rich and confident appearance.\u003c\/p\u003e\n\u003cp\u003eWith full GIA certification, this gemstone confirms natural origin and displays a blue-dominant colour with a subtle violet shift under changing light.\u003c\/p\u003e\n\u003cp\u003eThis is high-grade material, consistent with VB 6\/6 classification and AAA+ \/ heirloom quality — placing it in the top 1% of tanzanite mined.\u003c\/p\u003e\n\u003cp\u003eA powerful yet elegant gemstone with strong visual impact.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424068391284,"sku":null,"price":5317.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/1BA8FF6E-7A31-4A78-8AD6-A54D36523CDB.png?v=1779089063"},{"product_id":"12-95-ct-emerald-cut-tanzanite-gemstone","title":"12.95 ct Emerald Cut Tanzanite Gemstone - GIA Certificate","description":"\u003cp\u003eA substantial 12.95 carat emerald cut tanzanite of rare size and depth. Stones of this scale allow for exceptional colour saturation, resulting in a bold and luxurious appearance -  with this stone radiating deep velvety blue tones. \u003c\/p\u003e\n\u003cp\u003eGIA certified, this gemstone shows a deeply saturated blue-dominant tone, with violet flashes appearing occasionally as the stone moves in the light.\u003c\/p\u003e\n\u003cp\u003eThis level of colour and size places it firmly within VB 6\/6 grading and AAA+ \/ heirloom classification — representing the very top tier of tanzanite. Many emerald cuts have \" windows” or transparent spaces where the light filters through - but this stones facets are perfectly placed to give you the wondrous hall of mirrors effect  and even colour that is desirable in the finest emerald cuts . \u003c\/p\u003e\n\u003cp\u003eA rare and highly collectible gemstone with strong investment appeal. \u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424088248692,"sku":null,"price":8417.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/0B9B768F-3F53-41A9-AC26-83C1BD192E89.png?v=1779088932"},{"product_id":"4-71-ct-oval-tanzanite-gemstone-gia-certified","title":"4.71 ct Oval Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA vibrant 4.71 carat oval tanzanite with excellent brightness and lively colour. Just under the 5 carat threshold, this stone shows impressive saturation for its size.\u003c\/p\u003e\n\u003cp\u003eGIA certified, it displays a blue-dominant hue with delicate violet flashes, bringing energy and movement to the gemstone.\u003c\/p\u003e\n\u003cp\u003eIts colour quality aligns with VB 6\/6 grading and AAA+ \/ heirloom standards, placing it within the top 1% of tanzanite available.\u003c\/p\u003e\n\u003cp\u003eA bright, eye-catching stone with strong personality \u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424092901748,"sku":null,"price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/tanzanite_oval_aaa_grade_GIA.jpg?v=1778640071"},{"product_id":"5-37-ct-oval-tanzanite-gemstone-gia-certified","title":"5.37 ct Oval Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA beautifully balanced 5.37 carat oval tanzanite, offering both depth of colour and strong brilliance. At this size, the stone begins to show the richer tones associated with fine tanzanite.\u003c\/p\u003e\n\u003cp\u003eGIA certified, it presents a blue-dominant body colour with flashes of violet under shifting light. A stunning piece of the finest tanzanite ! \u003c\/p\u003e\n\u003cp\u003eClassified as VB 6\/6, and equivalent to AAA+ or heirloom quality, this gemstone sits comfortably within the top 1% of tanzanite mined.\u003c\/p\u003e\n\u003cp\u003eAn elegant and highly desirable stone.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424095293812,"sku":null,"price":3600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/5.37_AAA_tanzanite_oval.png?v=1779185016"},{"product_id":"4-04ct-pear-tanzanite-gemstone-gia-certified","title":"4.04 ct Pear Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA graceful 4.04 carat pear-shaped tanzanite with a refined silhouette and excellent light performance. The elongated shape enhances both size appearance and brilliance.\u003c\/p\u003e\n\u003cp\u003eGIA certified, this gemstone shows a blue-dominant tone with subtle violet undertones, creating a soft yet vibrant colour profile.\u003c\/p\u003e\n\u003cp\u003eIts quality aligns with VB 6\/6 grading and AAA+ \/ heirloom classification — representing the finest tier of tanzanite.\u003c\/p\u003e\n\u003cp\u003eA distinctive and elegant gemstone.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424096964980,"sku":null,"price":2747.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/GIA2547914219_TZPR_4.04_page-0001.jpg?v=1776618073"},{"product_id":"7-84-ct-trillion-tanzanite-gemstone-gia-certified","title":"7.84 ct Trillion Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA bold 7.84 carat trillion-cut tanzanite with sharp geometry and exceptional brilliance. This cut enhances light return, giving the stone a vibrant, energetic appearance.\u003c\/p\u003e\n\u003cp\u003eGIA certified, it presents a rich blue-dominant tone with flashes of violet across its facets.\u003c\/p\u003e\n\u003cp\u003eWith colour grading consistent with VB 6\/6 and AAA+ \/ heirloom quality, this gemstone sits firmly in the top 1% of tanzanite mined.\u003c\/p\u003e\n\u003cp\u003eA striking and distinctive stone with strong presence.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424099520884,"sku":null,"price":5096.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/7-84ct-trillion-tanzanite-gemstone-gia-certified-1.png?v=1779484595"},{"product_id":"15-29-ct-oval-tanzanite-gemstone-gia-certified","title":"15.29 ct Oval Tanzanite Gemstone – GIA Certified","description":"\u003cp\u003eA remarkable 15.29 carat oval tanzanite with exceptional size and depth of colour. Larger stones like this allow the colour to fully develop into a rich, velvety blue.\u003c\/p\u003e\n\u003cp\u003eGIA certified, it exhibits a strong blue-dominant tone with vivid flashes of violet under light.\u003c\/p\u003e\n\u003cp\u003eThis gemstone sits at the highest level of quality — VB 6\/6 — and is equivalent to AAA+ \/ heirloom grade, representing the top 1% of all tanzanite mined.\u003c\/p\u003e\n\u003cp\u003eA rare, high-impact gemstone with true collector appeal.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54424101323124,"sku":null,"price":9938.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/15-29-carat-oval-cut-tanzanite-gemstone-2.jpg?v=1779195175"},{"product_id":"8-05-ct-trillion-cut-tanzanite-gemstone-gia-certified","title":"8.05 ct Trillion Cut Tanzanite Gemstone – GIA Certified","description":"\u003cp data-start=\"55\" data-end=\"313\"\u003eThis impressive 8.05 carat trillion-cut tanzanite displays strong saturation, excellent brilliance, and exceptional eye-clean clarity. Its larger size allows the colour to deepen beautifully, giving the stone a rich, confident, and highly desirable presence.\u003c\/p\u003e\n\u003cp data-start=\"315\" data-end=\"462\"\u003eGIA certified, this gemstone confirms natural tanzanite origin and displays a blue-dominant colour with a subtle violet shift under changing light.\u003c\/p\u003e\n\u003cp data-start=\"464\" data-end=\"609\"\u003eThis is high-grade material, consistent with VB 6\/6 classification and AAA+ \/ heirloom quality — placing it among the finest tanzanite available.\u003c\/p\u003e\n\u003cp data-start=\"611\" data-end=\"753\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePowerful yet elegant, this trillion-cut tanzanite offers outstanding visual impact, with flawless eye-clean clarity and no visible inclusions.\u003c\/p\u003e","brand":"Tanzanite Direct","offers":[{"title":"Default Title","offer_id":54591161565556,"sku":null,"price":5300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/files\/8.05_trillion_cut_tanzanite.jpg?v=1779189504"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0904\/9351\/8196\/collections\/Screenshot2026-05-13at2.38.44pm.png?v=1779183596","url":"https:\/\/www.tanzanitedirect.co.nz\/collections\/gia-certified-tanzanite-gemstones-1.oembed","provider":"Tanzanite Direct","version":"1.0","type":"link"}