Tanzanite Ring; Genuine Earth Mined, Natural GIA Certified D’Block Tanzanite in Solid Platinum; Gemstone Ring; Engagement Ring; Statement Ring; Bridal Jewelry
Gemstone: Natural D’Block Tanzanite
Accent Stone(s): Natural Diamond (66 total)
Weight (CT. T.W.): 0.33tcw
Total Stone Weight (CT. T.W.): 3.38tcw
Metal Type: Platinum
Karat Content: PT900
Ring Weight: 9.5 Grams
Current Ring Size: 7.75
Sizing Available: Yes—Free Limited Sizing with any Ring Purchase**
The 3.05 carat, GIA Certified, Natural D’Block Tanzanite has vivid saturation, and excellent VS clarity with no visible inclusions, and is a vibrant dark-violet-purple-blue color! Photos are taken under professional lighting and are magnified at 50x zoom to show details that may not be visible to the naked eye. Accenting the rare gemstone are halo and pavé set, 1.00mm round brilliant cut, natural Diamond accents (66 total) that are G color with VS2-SI1 clarity and weigh a combined total of 0.33 carats. The ring is clearly hallmarked the designer logo A.JAFFE and PLAT on the inside of the 4.75mm band. When worn, the top of the ring/stone is elevated about 7.5mm from the finger. GIA Certificate included with purchase.
We travel across the United States to various Estate Sales acquiring only the finest and most rare antique, vintage, and modern pieces of jewelry. Each piece then undergoes a thorough process of examination, setting, restoration, cleaning, and polishing by a Master GIA Graduate Gemologist. All of our items have been tested and are guaranteed to be authentic Solid Gold—not plated or filled. Item will arrive in a brand new natural redwood and leather gift box, ready to be gifted or worn today!
The A.JAFFE story began in 1892 and continues today as one of the only 19th century jewelers still active in New York City. Each A.JAFFE engagement ring is perfectly crafted, seamlessly combining modern glamour with timeless elegance. The heritage of A.JAFFE is distinguished by its influence on the design of the American engagement ring, including the creation of some of the first solitaire and multi-stone engagement rings available in the United States. Today the A.JAFFE name continues to stand for the same superior standards of quality and innovation that have gone into each of our bridal rings for over 120 years. Tanzanite is the blue and violet variety of the mineral zoisite. Tanzanite is only found in Tanzania, in a very small mining area near the Mererani Hills. Given the name “Tanzanite” by Tiffany & Co., the "blue-violet zoisite" was first introduced to the market in 1968. In 2002, the American Gem Trade Association chose tanzanite as a December birthstone, the first change to their birthstone list since 1912. Tanzanites are noted for their remarkably strong trichroism, appearing alternately sapphire blue, violet and burgundy depending on the crystal orientation. They also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. Tanzanite forms as a brownish crystal and is trichroic, which means it shows three colors – brown, blue and violet – concurrently. Heating, either underground naturally by metamorphic processes, or artificially, removes the brown or burgundy color component to produce a stronger violet-blue color. Some stones found close to the surface in the early days of the discovery (in an area now called D block) were gem-quality blue without the need for heat treatment – probably the result of a wildfire in the area which heated the stones underground. This small deposit found at the base of Mt. Kilimanjaro extracted the most valuable and rare Tanzanites in the world.
**Currently a size 7 ¾ but could be sized, free of charge, by my master jeweler so that it is ready to be gifted or worn upon arrival! Most rings can be sized a maximum of 3-4 sizes up or down depending on the style of the ring. Please indicate your desired size at checkout and allow up to 10 business days for my local expert jeweler to complete sizing. I do not accept returns on items that have been custom sized or altered at your request so if you are unsure about an item it may be best to have it sized by your local jeweler just in case.
Flexible Layaway plans available for all items over $500.00! Please message me for more information if you have an interest and I will go over the terms and conditions for you.
Items purchased before 5pm are usually shipped same day unless customization or resizing was requested. Items are securely packaged, shipped via USPS with signature-required tracking, and sent directly to the customer for enjoyment. Appraisals available at customers request.
Thank you for shopping Gemcitygems! Don’t hesitate to reach out and message me with any questions, or if there is a problem or concern.
1 business day
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
Just contact me within: 3 days of delivery
Ship items back to me within: 7 days of delivery
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.
We are currently offering FREE Ring Resizing! Purchase a ring and we will have it sized, free of charge, by the master jeweler so that it is ready to be gifted or worn upon arrival!
Most rings can be sized a maximum of 3-4 sizes up or down depending on the style of the ring. Please indicate your desired size at checkout and allow up to 10 business days for my local expert jeweler to complete sizing.
**Please note that once rings have been custom sized and altered for you, they may not be returned. If you are unsure about an item it may be best to have it sized by your local jeweler just in case.
Yes! We are proud to offer flexible Layaway plans for all items over $500.00! Please message me for more information if you have an interest and I will go over the terms and conditions for you.
Yes, I offer shipping to many countries! Message me if you have additional questions regarding international shipping.
Shipping times will vary according to distance and individual country customs policies but will typically ship out the same day as cleared payment. Customs duties levied/VAT, if any, are the responsibility of the buyer.
We recommend using caution when cleaning your natural earth mined, untreated gemstone jewelry. We do not recommend using ultra-sonic machines or chemical cleaners which could alter the color and clarity of the gemstone.
Most stones respond well to mild detergent and warm water. Scrub them using a soft brush, preferably a baby brush with soft bristles. Avoid scrubbing too hard else you may end up scratching the stone. Rinse the stone and dry it gently with the help of a soft, lint-free cloth.
Each piece of jewelry purchased from GEMCITYGEMS undergoes a thorough process of examination, setting, restoration, cleaning, and polishing by a Master GIA Graduate Gemologist. All of our items have been tested and are guaranteed to be authentic Solid Gold—not plated or filled.
Ring will arrive in a brand new natural redwood and leather ring box, ready to be gifted or worn today! Appraisals available at customers request.