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292^nd Auction: Watches »
October 24^th 2026 - In 16 days

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294^th Auction: Jewellery »
October 17^th 2026 - In 9 days

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651 Lots

294-5245 Brilliant-cut diamond: rare natural fancy brilliant of ca. 1.56 ct, presumed brownish-orange Ca. Ø7 mm, ca. 4.7 mm high, ca. 1.56 ct, light brown-orange colour, clarity SI. 680 € - 3.000 €

294-5246 Morganite: rare, large natural pear-shaped morganite of 29.22 ct, with certificate Ca. 20.54 x 20.36 x 14.52 mm, 29.22 ct, very fine morganite, peach colour, origin Nigeria, natural beryl, pear cut, facetted on both sides, eye-clean, incl. AIG certificate. 2.500 € - 3.500 €

294-5247 Morganite: large, oval morganite of ca. 27 ct Ca. 23.07 x 16.85 x 11.94 mm, ca. 27 ct, oval cut, facetted on both sides, very fine-quality morganite with a very beautiful colour and high brilliance, eye-clean. 2.500 € - 3.500 €

294-5248 Natural zircon of 4.25 ct in the rare colour ‘Yellowish Brown’, including report Ca. 8.98 x 8.87 x 5.85 mm, 4.25 ct, colour: yellowish brown, transparent, round mixed cut; the stone is supplied with a current GSI report dated March 2026. 1.200 € - 1.600 €

294-5249 Natural, rare orange-pink ‘Padparadscha’ sapphire, 1.18 ct, ‘NO HEAT’, with a report from Switzerland Ca. 7.33 x 5.60 x 3.30 mm, 1.18 ct, facetted oval cut, colour orange-pink, unheated, origin Madagascar, including GFCO report from 2025. 2.500 € - 5.000 €

294-5250 Exceptionally large, loose natural imperial topaz, 90.38 ct, pinkish brown, GSI report Ca. 25.72 x 22.50 x 16.78 mm, natural topaz weighing 90.38 ct, colour: pinkish brown, transparent, rectangular cushion modified brilliant-cut diamond, including GSI report dated March 2026. 4.000 € - 10.000 €

294-5251 Titanite: exceptional sphene of ca. 4.97 ct and fine clarity, greenish-yellow, GSI report Ca. 11.60 x 8.86 x 6.30 mm, 4.97 ct, natural sphene, colour: greenish yellow, rectangular cushion modified brilliant-cut diamond, transparent, including GSI report dated March 2026. Sphene is renowned for its incredible brilliance and vivid colour. 2.400 € - 5.000 €

294-5252 Tourmaline: rare Paraiba tourmaline in a pear cut, 4.22 ct, AIG report Ca. 12.22 x 9.52 x 5.73 mm, 4.22 ct, faceted teardrop cut, colour: green-blue, origin: Mozambique, containing traces of copper and manganese, so-called Paraiba tourmaline; this high-quality stone of a very beautiful colour is supplied with an AIG report dated December 2025. 3.000 € - 4.500 €

294-5253 Tourmaline: rare heart-cut tourmaline, ‘Paraiba’, 5.87 ct, AIG report Ca. 11.59 x 12.61 x 6.78 mm, 5.87 ct, facetted heart cut, colour: light blue, origin: Mozambique, containing traces of copper and manganese; Paraiba tourmaline of rare purity; this high-quality stone of beautiful colour comes with an AIG report dated January 2026. 3.000 € - 6.000 €

294-5254 Valuable, exceptionally large aquamarine in a rare colour, 24.47 ct, including report Ca. 21.99 x 17.60 x 9.45 mm, 24.47 ct, natural aquamarine, octagonal step cut, blue, eye-clean; the stone is supplied with the corresponding GSI report dated 2026. The aquamarine has the sought-after intense blue colour, one grade below the ‘premier class’ Santa Maria in terms of colour grade. 9.000 € - 15.000 €

294-5255 Natural, untreated zoisite/tanzanite, 5.28 ct, colour: greenish yellow, including report Ca. 9.64 x 9.51 x 7.95 mm, 5.28 ct, natural zoisite, round mixed cut, colour: greenish yellow, transparent, including GSI report from 2025. 1.800 € - 5.000 €

294-5256 Natural, unheated zoisite/tanzanite, 5.71 ct, colour: greyish brown, including report Ca. 12.98 x 8.65 x 6.34 mm, 5.71 ct, natural zoisite, cushion mixed cut, colour: greyish brown, transparent, including GSI report from 2025. 2.100 € - 5.000 €

294-5257 Natural, unheated zoisite/tanzanite, 4.89 ct, including GSI report Ca. 9.71 x 8.74 x 6.20 mm, 4.89 ct, natural zoisite, octagonal step cut, colour: violetish brown, transparent, including GSI report from 2025. 1.650 € - 4.500 €

294-5258 Unheated, rare zoisite in the tanzanite variety, 5.97 ct, violetish blue, including report Ca. 15.29 x 9.39 x 6.83 mm, 5.97 ct, natural zoisite, tanzanite variety, colour: violetish blue, pear mixed cut, transparent, including GSI report from 2025. 2.350 € - 5.000 €

294-5259 Extremely valuable ‘NO HEAT’ tanzanite weighing 13.69 ct, colour: greenish violet, including IGI report Ca. 19.55 x 12.46 x 7.95 mm, 13.69 ct, natural zoisite/tanzanite, greenish violet, pear cut; the stone comes with a current IGI certificate dated 2026. Unheated tanzanites of this size and quality are rarely available on the market and have high potential for appreciation in value. 9.500 € - 15.000 €

294-5260 3.10 ct tanzanite in an octagon cut, fine AAA quality Ca. 9.78 x 7.41 x 4.80 mm, 3.10 ct, octagon cut, eye-clean, high-quality tanzanite with high colour intensity and beautiful brilliance. 800 € - 1.500 €

294-5261 Tanzanite in a teardrop cut, 2.45 ct, fine AAA quality Ca. 11.36 x 7.39 x 4.91 mm, 2.45 ct, pear-cut, facetted on both sides, beautiful natural tanzanite with intense colour. 600 € - 1.000 €

294-5262 2.83 ct oval-cut tanzanite, fine AAA quality Ca. 9.93 x 7.82 x 5.45 mm, natural tanzanite weighing 2.83 ct, facetted oval cut, high-quality tanzanite with high colour intensity and beautiful brilliance, eye-clean. 700 € - 1.200 €

294-5263 Tanzanite: natural, very beautiful loose cushion-cut tanzanite, ca. 7.10 ct, report Ca. 11.29 x 11.247 x 7.53 mm, ca. 7.53 ct, double-sided faceted modified cushion cut, eye-clean, colour: violetish blue, high-quality tanzanite with high colour intensity and beautiful brilliance, including report. 1.500 € - 3.500 €

294-5264 Natural tanzanite weighing 11.31 ct, including certificate Ca. 16.17 x 11.87 x 8.05 ct, oval cut, colour: violetish blue, high brilliance and clarity, including report. 2.500 € - 5.500 €

294-5265 Valuable untreated zoisite-tanzanite weighing 16.96 ct, including IGI report Ca. 15.80 x 12.13 x 9.25 mm, octaconal step cut, natural zoisite, a very valuable variety of tanzanite, colour: violetish blue, transparent, including GSI report dated 2026. 7.500 € - 15.000 €

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