Opals
Gemstones
Jewelry
Coins
Vous n'avez pas enchéri sur cette enchère.
$986.00
Enchère actuelle
1
Enchères
Fermé
15/08/2020 07:44 am
1
1100
5
16.43CT~BOLIVIAN AMETRINE~ORIGINAL DESIGN~PRECISION CUT
1
1100
5
- UGS
- Dimensions (mm)
- 17.500 x 17.500 x 12.200mm
- Poids (cts)
- 16.430
- Treatment
- No Treatment
- Taper
- Faceted
- Couleurs
-
Natural Ametrine
** A special custom cut designed by myself with added frosted facets to add contrast and accent the brilliance.
Ametrine is a variety of bi-color quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bi-color quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Natural Ametrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. The color of the zones visible within ametrine is due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
*CARE (Ametrine)*
Ultrasonic: Usually safe
Steamer: Risky
Heat: Fair; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, ammonium fluoride can damage.
Best; Warm, soapy water and then gently clean with a soft brush. Dry with a soft cloth or air dry.
*CLARITY CHART*
IF – Internally flawless; free of inclusions
VVS – Very, very slight inclusions; microscopic inclusions barely
seen under a loupe with 10x magnification
VS – Very Slight inclusions; visible inclusions that can be seen under magnification and sometimes also with the unaided eye.
SI – Small inclusions; inclusions that are obvious under magnification and to the unaided eye.
I – Heavy or large inclusions obvious to the naked eye
All gemstones listed here have been cut by myself. I work exclusively with a precision machine when faceting gemstones. This allows extra brilliance and appeals only seen in precision-cut gems. Gemstones are cut at their correct refractive index using digital precision, this facilitates making the correct facet angles allowing the maximum amount of light to enter and reflect back up through the table. This allows optimum brilliance according to each gemstone's individual refractive index. Special care in polishing ensures that the faceted gem is showcased in all its brilliance. The introduction of precision faceting machines has revolutionized the art of gem cutting allowing the gem cutter to unveil the inner beauty of every single gemstone like it has never been done before. The cut of a gem is one of the main values of a gemstone and each gemstone requires special attention in order to unveil its potential beauty. If you're looking for that extra special stone, I hope you find it here.
Sincerely,
Doug
"Light reflects off of Jewels,
But, "It" comes from above."
- Grading: IF
- Design: Custom with frosted facets
- Color: Purple, Yellow, Multicolored
- Origin: Bolivia
- Treatment: None at all
- Hardness: 7
- Refractive Index: 1.54-1.55
- Cut: Custom cut by Doug (2X Award-winning gemstone faceter/USFG Certified Grand Master Faceter)
** A special custom cut designed by myself with added frosted facets to add contrast and accent the brilliance.
Ametrine is a variety of bi-color quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bi-color quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Natural Ametrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. The color of the zones visible within ametrine is due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
*CARE (Ametrine)*
Ultrasonic: Usually safe
Steamer: Risky
Heat: Fair; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, ammonium fluoride can damage.
Best; Warm, soapy water and then gently clean with a soft brush. Dry with a soft cloth or air dry.
*CLARITY CHART*
IF – Internally flawless; free of inclusions
VVS – Very, very slight inclusions; microscopic inclusions barely
seen under a loupe with 10x magnification
VS – Very Slight inclusions; visible inclusions that can be seen under magnification and sometimes also with the unaided eye.
SI – Small inclusions; inclusions that are obvious under magnification and to the unaided eye.
I – Heavy or large inclusions obvious to the naked eye
All gemstones listed here have been cut by myself. I work exclusively with a precision machine when faceting gemstones. This allows extra brilliance and appeals only seen in precision-cut gems. Gemstones are cut at their correct refractive index using digital precision, this facilitates making the correct facet angles allowing the maximum amount of light to enter and reflect back up through the table. This allows optimum brilliance according to each gemstone's individual refractive index. Special care in polishing ensures that the faceted gem is showcased in all its brilliance. The introduction of precision faceting machines has revolutionized the art of gem cutting allowing the gem cutter to unveil the inner beauty of every single gemstone like it has never been done before. The cut of a gem is one of the main values of a gemstone and each gemstone requires special attention in order to unveil its potential beauty. If you're looking for that extra special stone, I hope you find it here.
Sincerely,
Doug
"Light reflects off of Jewels,
But, "It" comes from above."
- UGS
- Dimensions (mm)
- 17.500 x 17.500 x 12.200 mm
- Poids (cts)
- 16.430
- Treatment
- No Treatment
- Taper
- Faceted
- Couleurs
-
Natural Ametrine
** A special custom cut designed by myself with added frosted facets to add contrast and accent the brilliance.
Ametrine is a variety of bi-color quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bi-color quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Natural Ametrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. The color of the zones visible within ametrine is due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
*CARE (Ametrine)*
Ultrasonic: Usually safe
Steamer: Risky
Heat: Fair; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, ammonium fluoride can damage.
Best; Warm, soapy water and then gently clean with a soft brush. Dry with a soft cloth or air dry.
*CLARITY CHART*
IF – Internally flawless; free of inclusions
VVS – Very, very slight inclusions; microscopic inclusions barely
seen under a loupe with 10x magnification
VS – Very Slight inclusions; visible inclusions that can be seen under magnification and sometimes also with the unaided eye.
SI – Small inclusions; inclusions that are obvious under magnification and to the unaided eye.
I – Heavy or large inclusions obvious to the naked eye
All gemstones listed here have been cut by myself. I work exclusively with a precision machine when faceting gemstones. This allows extra brilliance and appeals only seen in precision-cut gems. Gemstones are cut at their correct refractive index using digital precision, this facilitates making the correct facet angles allowing the maximum amount of light to enter and reflect back up through the table. This allows optimum brilliance according to each gemstone's individual refractive index. Special care in polishing ensures that the faceted gem is showcased in all its brilliance. The introduction of precision faceting machines has revolutionized the art of gem cutting allowing the gem cutter to unveil the inner beauty of every single gemstone like it has never been done before. The cut of a gem is one of the main values of a gemstone and each gemstone requires special attention in order to unveil its potential beauty. If you're looking for that extra special stone, I hope you find it here.
Sincerely,
Doug
"Light reflects off of Jewels,
But, "It" comes from above."
- Grading: IF
- Design: Custom with frosted facets
- Color: Purple, Yellow, Multicolored
- Origin: Bolivia
- Treatment: None at all
- Hardness: 7
- Refractive Index: 1.54-1.55
- Cut: Custom cut by Doug (2X Award-winning gemstone faceter/USFG Certified Grand Master Faceter)
** A special custom cut designed by myself with added frosted facets to add contrast and accent the brilliance.
Ametrine is a variety of bi-color quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bi-color quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Natural Ametrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. The color of the zones visible within ametrine is due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
*CARE (Ametrine)*
Ultrasonic: Usually safe
Steamer: Risky
Heat: Fair; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, ammonium fluoride can damage.
Best; Warm, soapy water and then gently clean with a soft brush. Dry with a soft cloth or air dry.
*CLARITY CHART*
IF – Internally flawless; free of inclusions
VVS – Very, very slight inclusions; microscopic inclusions barely
seen under a loupe with 10x magnification
VS – Very Slight inclusions; visible inclusions that can be seen under magnification and sometimes also with the unaided eye.
SI – Small inclusions; inclusions that are obvious under magnification and to the unaided eye.
I – Heavy or large inclusions obvious to the naked eye
All gemstones listed here have been cut by myself. I work exclusively with a precision machine when faceting gemstones. This allows extra brilliance and appeals only seen in precision-cut gems. Gemstones are cut at their correct refractive index using digital precision, this facilitates making the correct facet angles allowing the maximum amount of light to enter and reflect back up through the table. This allows optimum brilliance according to each gemstone's individual refractive index. Special care in polishing ensures that the faceted gem is showcased in all its brilliance. The introduction of precision faceting machines has revolutionized the art of gem cutting allowing the gem cutter to unveil the inner beauty of every single gemstone like it has never been done before. The cut of a gem is one of the main values of a gemstone and each gemstone requires special attention in order to unveil its potential beauty. If you're looking for that extra special stone, I hope you find it here.
Sincerely,
Doug
"Light reflects off of Jewels,
But, "It" comes from above."
| Fournisseur d'expédition | Expédition vers :pays | Expédition dans le reste du monde |
|---|---|---|
| Standard Shipping - Tracked | $7.00 / : jours jours | $19.00 / : jours jours |
dougpamgems
Welcome to DougPamGems. As a professional cutter specializing in opals (Topshelfopals), I have now ventured into the world of "other" gemstones. Precision faceting is my new-found love. As with opals, my goal is to reveal as much whimsical wonder and beauty as a piece of rough can produce. It is my goal to allow these heavenly treasures to lead and guide me, to shape and polish these colorful rustic stones into pure eye candy, to allow them to come into fruition as objects of beauty to pleasure and inspire others like myself. As an award-winning faceter and member of the USFG, You can rest assured that your gemstone has been cut and polished with love, excitement, anticipation and professional skill.
Sincerely,
Doug
:ville Pays
Vérifié
: Retour total
-
PositifPaid and shipped - no feedback left after 100 days
-
Positif
Thanks again Doug!!
-
Positif
A Man who gives us wonderful stones! We thank you!
-
Positif
Very beautiful gem!
-
Positif
Paid and shipped - no feedback left after 100 days
Historique des enchères (1)
mjcgcrew
Acheté auprès de ce vendeur précédemment
il y a 4 ans
$985.00
Pourquoi les utilisateurs se surenchérissent-ils ?
Lorsqu'une enchère est placée, il s'agit du montant maximum qu'un utilisateur est prêt à enchérir pour le produit. Notre système enchérira ensuite automatiquement au nom de cet utilisateur, augmentant progressivement l'enchère pour maintenir sa position d'enchérisseur le plus élevé, jusqu'au maximum spécifié.
Lorsqu'il y a une icône indiquant "Enchère automatique", cela signifie que notre système place activement des enchères pour l'utilisateur en fonction de son enchère maximale. Cela peut donner l'impression que les utilisateurs surenchérissent eux-mêmes, mais c'est simplement le résultat de la mise à jour de l'enchère par le système pour refléter la limite maximale des utilisateurs.
Audit
Le programme Gemstone Sheriff permet à nos membres de demander un audit sur n'importe quel produit, qui est complété par une Gemologist indépendante qui évalue l'exactitude de la description et des images de l'article.
Les détails d'expédition
Expédition:
$19.00 :compter les jours via Standard Shipping - Tracked
Expédié depuis:
United States of America
Options de paiement
Aperçu
Type d'inscription :
Standard
Identifiant du produit :
1253784
Enchère de départ : $985
Départs : 9th August 2020 01:25 pm PDT
Prend fin : 15th August 2020 07:44 am PDT
* Tous les prix sont en :devise
