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Rare Demantoid Garnet 1.20 ct Untreated Baluchistan Mine SKU 6

存货单位
尺寸(毫米)
6.460 x 5.740 x 3.880mm
重量 (cts)
1.200
Treatment
No Treatment
Shape
Oval
类型
Faceted
颜色

Demantoid is a garnet gemstone variety with an emerald-green color and mesmerizing, diamond-like sparkle. This type of garnet originates from Russia, sometimes dubbed the “Czar of garnets.” It’s known for being the most brilliant and currently most valuable garnet variety.

Are demantoids rare? Very rare — one of the rarest varieties of garnet, in fact! You probably know red garnets the best, as green is one of the rarest but also very desirable garnet colors. Even further, demantoid is one of the rarest colored gemstones, too!

Demantoid is a brilliant green semi-precious gemstone in the andradite garnet species. The only other green garnets are uvarovite, tsavorite, sometimes Mali garnet, and of course, demantoid.

Because it resembles peridot, other names used for demantoid include olivine, Uralian emerald, Ural chrysolite, Siberian chrysolite, and Bobrovsk emerald. However, these are all incorrect and against regulations set by the Federal Trade Commission (FTC).

As a garnet, demantoid serves as a birthstone for January, as well as a Capricorn or Aquarius zodiac stone. Additionally, green garnets traditionally commemorate the 25th wedding anniversary!

Demantoid Specifications & Characteristics

Demantoid is an andradite, the iron- and calcium-rich garnet species — formula Ca3Fe2(SiO4)3 — in the larger ugrandite garnet group. Other andradite garnets are topazolite, melanite, and rainbow andradite, but demantoid is the most valuable and widely known andradite variety.

The easiest way to identify demantoids is by the presence of horsetail inclusions (discussed more in-depth in the Clarity section). Not every demantoid has these inclusions, but demantoid is the only green gemstone that has them. Outside of demantoid, they’ve only been found in brown andradite as of 2018.

With a Mohs scale ranking of 6.5 to 7, demantoid’s hardness is the only trait that puts it slightly below other garnets.

On the other hand, demantoid beats other garnets with its diamond-like luster and high dispersion (a.k.a. “fire” or colorful sparkle). The dispersion (0.057) is even higher than that of diamond at 0.044!

Here are all of the demantoid garnet properties:

  • Mineral family: Andradite Garnet

  • Mohs hardness: 6.5-7

  • Color: Yellow-green, emerald-green, or deep green, sometimes brownish tint

  • Crystal structure: Isometric/Cubic

  • Luster: Adamantine

  • Transparency: Transparent

  • Refractive index: 1.880-1.888

  • Density: 3.81-3.89

  • Cleavage: None

  • Fracture: Conchoidal

  • Streak: White

  • Luminescence: None

  • Optical effects: Rarely chatoyancy

  • TREATMENT NONE

  • COLOR GREEN

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zayangems
zayangems
Welcome to Zayan Gems, your ultimate destination for exquisite gemstones that exude brilliance and rarity. With a rich history spanning 18 years, Zayan Gems has established itself as a premier name in the gemstone industry, operating from the vibrant markets of Pakistan, Thailand, and Australia. Our unwavering commitment to quality and excellence has earned us a reputation as a trusted wholesaler of both semi-precious and precious gemstones. A World of Gemstone Expertise At Zayan Gems, we pride ourselves on our extensive expertise in sourcing, cutting, and polishing gemstones to perfection. Our collection boasts an array of gemstones in both polished and rough forms, catering to the diverse needs of our discerning clientele. Each gemstone in our inventory is meticulously selected to ensure it meets our stringent standards of quality, brilliance, and uniqueness. Global Sourcing for Exceptional Quality Our passion for gemstones takes us on a global journey, sourcing the finest stones from renowned regions known for their unparalleled quality. Our focus areas include Africa, Pakistan, Tajikistan, Afghanistan, and Kashmir. These regions are celebrated for their rich deposits of high-quality gemstones, and our established ties with local mining communities enable us to procure stones that are truly exceptional. The limited access to these prime gemstone sources allows us to offer our customers stones of "high to finest" quality at highly competitive prices. Unique Access to Exclusive Gemstones What sets Zayan Gems apart is our unique access to some of the world's most sought-after gemstone mining and market environments. Our deep-rooted connections in these regions ensure that we are able to bring you gemstones that are not only rare but also of unmatched quality. Whether you are seeking the deep hues of African sapphires, the vibrant colors of Pakistani tourmalines, the mystical allure of Tajikistan spinels, the timeless elegance of Afghan emeralds, or the legendary beauty of Kashmiri sapphires, Zayan Gems is your gateway to these treasures. Our Commitment to Excellence Our commitment to excellence extends beyond sourcing and wholesaling. We believe in building long-lasting relationships with our customers by providing personalized service and unparalleled expertise. Our team of gemstone experts is always ready to assist you in finding the perfect stone that meets your specific requirements. Join the Zayan Gems Family Discover the brilliance of rare gemstones with Zayan Gems and experience the difference that quality and expertise can make. Whether you are a jeweler, a collector, or an enthusiast, our extensive collection and exceptional service will exceed your expectations. Join the Zayan Gems family today and embark on a journey to explore the world's most exquisite gemstones. Visit us at our locations in Pakistan, Thailand, and Australia, or explore our collection online. Zayan Gems – where the brilliance of rare gemstones meets the artistry of perfection.
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  • kjboyle55
    kjboyle55
    积极的

    Wow! Beautiful color and fire! I can always count on Zayan Gems for wonderful gemstones and fast delivery.

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Comments

The Verified Seller has provided accurate and honest pictures and details for this listing. Gem Rock Auctions is committed to holding our sellers to the highest standards of integrity and transparency. As part of this policy, we only permit the sale of natural, earth mined, gemstones. Many Gemstones have received treatments to enhance their color or clarity to further emphasize their beauty and we insist treatments are disclosed. Manmade, synthetic, and imitation gemstones are not permitted on Gem Rock auctions.

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概述

列表类型 : Premium
产品编号 : 2606127
预计建议零售价 : $750.00
起拍价 : $1
开始 : 5th November 2024 10:44 am PST
结束 : 12th November 2024 10:44 am PST
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