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Unmounted 14.07 carat Tajikistan spinel

Lot 2020 . Unmounted 14.07 carat Tajikistan spinel. Estimate CHF 42 000 / 62 000 (€ 38 890 / 57 410) © Koller Auctions Very fine, pear-shaped spinel of 14.07 ct, from Tajikistan With Gübelin-Report no. 16050179, June 2016. Koller Auctions. Jewellery -...

Posté par Alain Truong à 23:55 - Commentaires […] - Permalien [#]

Tags: Tajikistan spinel

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19 juin 2017

Unmounted 15.07 carat Tajikistan spinel

Lot 2016. Unmounted 15.07 carat Tajikistan spinel. Estimate CHF 45 000 / 65 000 (€ 41 670 / 60 190) © Koller Auctions Very fine, triangular spinel of 15.07 ct, from Tajikistan. With Gübelin-Report no. 16050177, June 2016. Koller Auctions. Jewellery -...

Posté par Alain Truong à 23:46 - Commentaires […] - Permalien [#]

Tags: Tajikistan spinel

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19 juin 2017

Unmounted 15.55 carat Tajikistan spinel

Lot 2022. Unmounted 15.55 carat Tajikistan spinel. Estimate CHF 47 000 / 67 000 (€ 43 520 / 62 040). © Koller Auctions Very fine, oval spinel of 15.55 ct, from Tajikistan. With Gübelin-Report no. 16050178, June 2016. Koller Auctions. Jewellery - Thursday...

Posté par Alain Truong à 23:35 - Commentaires […] - Permalien [#]

Tags: Tajikistan spinel

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19 juin 2017

Burma ruby, enamel and gold ring, ca. 1860

Lot 2109. 5.10 carat Burma ruby cabochon, enamel and gold ring, ca. 1860. Estimate CHF 35 000 / 55 000 (€ 32 410 / 50 930) . © Koller Auctions Yellow gold. Set with 1 fine, oval, pink-red Burma ruby cabochon of ca. 5.10 ct, not heated. French import marks....

Posté par Alain Truong à 19:50 - Commentaires […] - Permalien [#]

Tags: Burma Ruby Ring, ca. 1860

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19 juin 2017

Sapphire and diamond bracelet, by Tiffany, ca. 1925

Lot 2135. Sapphire and diamond bracelet, by Tiffany, ca. 1925. Estimate CHF 35 000 / 55 000 (€ 32 410 / 50 930) . © Koller Auctions Platinum. Art-Déco bracelet, set with 4 round sapphires weighing ca. 5.00 ct, not heated, 5 circular-cut diamonds totalling...

Posté par Alain Truong à 19:41 - Commentaires […] - Permalien [#]

Tags: Tiffany, ca. 1925, Art-Déco, sapphire and diamond bracelet

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19 juin 2017

Diamond tiara

Lot 2024. Diamond tiara. Estimate CHF 40 000 / 60 000 (€ 37 040 / 55 560) . © Koller Auctions White gold 750. Set with 13 brilliant-, 7 marquise- and 140 baguette-cut diamonds and enhanced with brilliant-cut diamonds. Total weight of diamonds ca. 35.00...

Posté par Alain Truong à 19:33 - Commentaires […] - Permalien [#]

Tags: diamond tiara

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19 juin 2017

Rare natural blisterpearl

Lot 2089. Rare natural blisterpearl. Estimate CHF 40 000 / 70 000 (€ 37 040 / 64 810) . © Koller Auctions Exceptionally large, baroque Blisterpearl of a marine gastropod, weighing 325.38 ct, of white-yellow-orange colour. With SSEF-Report no 50182, December...

Posté par Alain Truong à 18:19 - Commentaires […] - Permalien [#]

Tags: natural blisterpearl

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19 juin 2017

Ceylon sapphire, emerald and diamond clip brooch, by René Boivin, ca. 1960

Lot 2087. Ceylon sapphire, emerald and diamond clip brooch, by René Boivin, ca. 1960. Estimate CHF 60 000 / 80 000 (€ 55 560 / 74 070). © Koller Auctions Yellow gold 750. Designed as a dolphin, with 1 emerald cabochon of ca. 5 mm as eye, set with round...

Posté par Alain Truong à 18:04 - Commentaires […] - Permalien [#]

Tags: René Boivin, Ca. 1960

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19 juin 2017

Burma sapphire and diamond ring

Lot 2180. 15.07 carat Burma sapphire and diamond ring. Estimate CHF 60 000 / 80 000 (€ 55 560 / 74 070) . © Koller Auctions Platinum 950, 15g. Set with 1 Burma sapphire of 15.07 ct, not heated, surrounded by brilliant-cut diamonds weighing ca. 1.60 ct....

Posté par Alain Truong à 15:34 - Commentaires […] - Permalien [#]

Tags: Burma Sapphire and diamond ring

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19 juin 2017

Fancy yellowish green diamond ring

Lot 2053. 3.05 carat Fancy yellowish green diamond ring. Estimate CHF 65 000 / 100 000 (€ 60 190 / 92 590) © Koller Auctions White gold 750. Set with 1 Fancy yellowish green cushion-cut diamond of 3.05 ct, VS2, in 4-prong setting. Size ca. 53. With GGTL-Report...

Posté par Alain Truong à 15:25 - Commentaires […] - Permalien [#]

Tags: Fancy yellowish green diamond ring

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