Opals
Gemstones
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$6,000.00 USD
RRP estimé $8,000.00
417
2
Presenting 23.15 Natural Bi Color Tourmaline Gemstone
417
2
- UGS
- Dimensions (mm)
- 9.200 x 6.800 x 5.400mm
- Poids (cts)
- 23.150
- Treatment
- No Treatment
- Shape
- Fancy
- Taper
- Faceted
- Clarity
- VVS
- Couleurs
-
Tourmaline is extremely popular among collectors and is a well-known gemstone. It is the most multicolored mineral type known, occurring in virtually every color of the spectrum. Individual stones are often multicolored and are unsurpassed in their beauty. The color of some Tourmaline can be enhanced through Heat treatment. Some greenish stones can be made deep green, some brownish-red stones can be made red, and some light pink stones can be made colorless through heating. Tourmaline has many interesting optical properties. Many green and blue specimens are strongly pleochroic. Indicolite is one of the most valuable and collectible of all elbaite Tourmaline's, with hues spanning from lighter to deep, intense blues. Cutting indicolite can be a task for even the most skilled of cutters, as it is strongly Pleochroic and appears darker when viewed down the crystal. This factor must be taken into consideration when cutting, as a loss of transparency and brilliance can occur in darker specimens.
- UGS
- Dimensions (mm)
- 9.200 x 6.800 x 5.400 mm
- Poids (cts)
- 23.150
- Treatment
- No Treatment
- Shape
- Fancy
- Taper
- Faceted
- Clarity
- VVS
- Couleurs
-
Tourmaline is extremely popular among collectors and is a well-known gemstone. It is the most multicolored mineral type known, occurring in virtually every color of the spectrum. Individual stones are often multicolored and are unsurpassed in their beauty. The color of some Tourmaline can be enhanced through Heat treatment. Some greenish stones can be made deep green, some brownish-red stones can be made red, and some light pink stones can be made colorless through heating. Tourmaline has many interesting optical properties. Many green and blue specimens are strongly pleochroic. Indicolite is one of the most valuable and collectible of all elbaite Tourmaline's, with hues spanning from lighter to deep, intense blues. Cutting indicolite can be a task for even the most skilled of cutters, as it is strongly Pleochroic and appears darker when viewed down the crystal. This factor must be taken into consideration when cutting, as a loss of transparency and brilliance can occur in darker specimens.
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Les détails d'expédition
Expédition:
$13.00 :compter les jours via Standard Shipping - Tracked
Expédié depuis:
Thailand
Options de paiement
Ce vendeur ajoute 2.00% tax aux transactions dans Thailand.
Aperçu
Type d'inscription :
Standard
Identifiant du produit :
2501874
Départs : 21st November 2024 09:24 am PST
* Tous les prix sont en :devise
