Gemstones

289-5345 Loose natural fancy diamond in a square emerald cut, 1.01ct, Grayish-Greenish-Yellow, IGI report Ca. 5.43 x 5.43 x 3.38 mm, 1.01 ct, Natural Fancy Grayish-Greenish-Yellow, clarity SI2, no fluorescence, 2 x Very Good, shrink-wrapped, incl. IGI report from 2025. now only: 500 €
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289-5346 Natural loose fancy diamond, 4.58 carats, deep greyish-brownish-yellow, IGI report Ca. 10.11 x 10.15 x 6.82 mm, 4.58 ct, clarity I1, brilliant cut, no fluorescence, Very Good/Good, shrink-wrapped condition, incl. IGI report from 2025. now only: 2.000 €
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Sold 289-5347 Diamond: interesting natural green fancy diamond in a triangle cut, ca. 0.83ct Ca. 6.81 x 6.52 x 3.69 mm, ca. 0.83 ct, interesting green hue, clarity in the SI range. Hammerprice: 500 €
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Sold 289-5348 Tanzanite: Pair of 2 deep blue tanzanites totalling ca. 5.18ct, teardrop shape Ca. 10.7 x 7.5 x 4.9mm and ca. 10.5 x 7.3 x 5.77mm, pear cut, faceted, deep blue colour, very fine quality. Hammerprice: 900 €
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Sold 289-5349 Ruby: faceted, natural ruby of ca. 1.73ct Ca. 7.8 x 5.8 x 4.48 mm, ca. 1.73 ct, oval cut, red with a violet tinge, eye-clean. Hammerprice: 500 €
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Sold 289-5350 Ruby: beautiful deep red star ruby, ca. 5.69ct, cabochon cut Ca. 9.44 x 8.09 x 6.65 mm, ca. 5.69 ct, distinct star effect, cabochon cut. Hammerprice: 550 €
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Sold 289-5351 Fine natural star ruby in a rare pink colour, ca. 3.27ct Ca. 8.7 x 6.6 x 6 mm, ca. 3.27 ct, pink star ruby in cabochon cut, fine quality. Hammerprice: 500 €
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Sold 289-5352 Spinel: bright red spinel of ca. 1.63ct, top quality Ca. 8.03 x 5.53 x 4.08 mm, ca. 1.63 ct, high clarity, faceted on both sides. Hammerprice: 1.200 €
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Sold 289-5353 Sapphire: rare pair of Burmese sapphires in an intense pink colour "NO HEAT", 2.04ct Each ca. 5.5 x 5.2 mm, eye-clean, top quality. Hammerprice: 1.000 €
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289-5354 Spinel: red, untreated Burmese spinel of top quality, 1.54ct Ca. 7.1 x 6.4 mm, eye-clean, fantastic colour and brilliance. now only: 1.200 €
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Sold 289-5355 Sapphire: natural orange sapphire of ca. 1.98ct, top quality Ca. 8.17 x 5.42 x 4.35 mm, ca. 1.98 ct, oval/faceted, very beautiful colour and clarity. Hammerprice: 500 €
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Sold 289-5356 Sapphire: large, natural orange sapphire of ca. 3.21ct Ca. 11.2 x 8.13 x 4 mm, ca. 3.21 ct, oval cut, faceted, very good clarity. Hammerprice: 500 €
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Sold 289-5357 Sapphire: natural yellow sapphire "NO HEAT", 8.6ct Ca. 11.8 x 9.2 x 7.6 mm, delicate yellow colour, small natural inclusions. Hammerprice: 1.000 €
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289-5358 Sapphire: natural yellow sapphire, Ceylon "NO HEAT", 7.11ct Ca. 13 x 10.6 x 5.4 mm, ca. 7.11 ct, uniform light yellow colour, eye-clean, untreated. now only: 1.800 €
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289-5359 Sapphire: grey/blue natural star sapphire cabochon, ca. 3.15ct Ca. 9.14 x 8.02 x 4.3 mm, ca. 3.15 ct, cabochon cut, fine quality. now only: 500 €
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Sold 289-5360 Sapphire: grey-blue “NO HEAT” star sapphire, 11.8ct Ca. 12.8 x 10 x 8.4 mm, cabochon cut, distinct star effect, grey-blue transparent, untreated. Hammerprice: 850 €
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Sold 289-5361 Sapphire: rare lilac-coloured sapphire, untreated, 3.89ct Ca. 9.3 x 7.3 x 6.8 mm, faceted, eye-clean. Hammerprice: 1.200 €
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289-5362 Sapphire: eye-clean, light blue Ceylon sapphire "NO HEAT", ca. 10.38ct Ca. 15 x 11.3 x 6.7 mm, 10.38 ct, eye-clean, untreated, rare size. now only: 3.500 €
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Sold 289-5363 Sapphire: very fine, natural blue sapphire of ca. 3.47ct Ca. 8.6 x 8.2 x 5.1 mm, ca. 3.47 ct, faceted, intense blue, eye-clean. Hammerprice: 500 €
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Sold 289-5364 Sapphire: very beautiful deep blue sapphire of ca. 2.79ct Ca. 10.2 x 7.7 x 3.8 mm, ca. 2.79 ct, oval cut, faceted on both sides, high clarity, top quality. Hammerprice: 1.000 €
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Sold 289-5365 Sapphire: fine Ceylon sapphire "NO HEAT", 3.22ct, with GRS certificate Ca. 10 x 7.5 x 4.6 mm, 3.22 ct, eye-clean, certified origin Sri Lanka. Hammerprice: 1.200 €
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Sold 289-5366 Sapphire: beautiful, natural purple sapphire of ca. 4.75ct Ca. 10.6 x 9.9 x 4.7 mm, ca. 4.75 ct, faceted on both sides, high clarity, eye-clean. Hammerprice: 1.700 €
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289-5367 Spinel: rare violet ‘NO HEAT’ spinel, 6.61ct, with GRS certificate Ca. 11.3 x 10.6 x 6.3mm, 6.61ct, good clarity, GRS certified. now only: 1.200 €
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289-5368 Natural sapphire "No Heat", 9.3ct, rare colour "dark greenish-blue", GIA certificate Ca. 12.3 x 11.2 x 7.6 mm, faceted, transparent, dark blue colour with a rare greenish tint, untreated, GIA certificate. now only: 2.500 €
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289-5369 Natural dark blue "No Heat" sapphire, 10.29ct, Lotus certificate Ca. 13.4 x 10.9 x 7.9mm, “Deep Blue”, transparent, with Lotus certificate. now only: 3.000 €
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289-5370 Natural dark blue sapphire "No Heat", untreated, extremely rare size: 18.89ct, GIA certificate Ca. 17.4 x 14.2 x 7.9 mm, 18.89 ct, “Very Dark Blue”, transparent, GIA certificate. now only: 3.000 €
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Sold 289-5371 Sapphire: very valuable, natural sapphire of almost 20ct, untreated, with DSEF certificate Ca. 17.25 x 13.5 x 9.5 mm, oval faceted, untreated, origin Ceylon, extremely rare size and quality. Hammerprice: 25.000 €
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Sold 289-5372 Tanzanite: very beautiful oval tanzanite of ca. 13.58ct, AAA quality Ca. 17.3 x 12.6 x 9.06 mm, ca. 13.58 ct, rare deep blue colour with only a slight hint of violet, oval cut, eye-clean. Hammerprice: 3.000 €
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Sold 289-5373 Very beautiful faceted blue topaz of ca. 101.2ct Ca. 38.65 x 19.57 x 13.8 mm, ca. 101.2 ct, high brilliance, eye-clean, facetted on both sides, rare size. Hammerprice: 800 €
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Sold 289-5374 Triangular tanzanite of ca. 4.33ct, deep blue/violet colour Ca. 11 x 11 x 6 mm, ca. 4.33 ct, very good clarity, top quality. Hammerprice: 900 €
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289-5375 Brilliant-cut diamond: rare natural fancy brilliant of ca. 1.56ct, presumed brownish orange Ca. Ø7mm, ca. 4.7mm high, ca. 1.56ct, light brown-orange colour, clarity SI. now only: 800 €
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Sold 289-5376 Tanzanite: very beautiful oval-cut tanzanite, ca. 12.48ct, fine AAA quality Ca. 16.72 x 12.22 x 7.67 mm, ca. 12.48 ct, high-quality tanzanite with intense colour and beautiful brilliance in an oval cut, eye-clean. Hammerprice: 2.000 €
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Sold 289-5377 Aquamarine: Assortment of fine aquamarines, total 260ct, remaining stock from a goldsmith 80 aquamarines of fine quality, various cuts and colour intensities, almost all stones larger than 1ct, many stones 3–5ct, largest stones 7 and 8ct! Hammerprice: 3.000 €
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289-5378 Aquamarine of very fine colour and quality, 22.45ct Ca. 22 x 14.5 x 9.7 mm, eye-clean, excellent colour, excellent cut. now only: 1.800 €
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Sold 289-5379 Emerald: fine emerald of ca. 2.02ct Ca. 7.4 x 7.4 x 5.6 mm, ca. 2.02 ct, emerald cut, high clarity. Hammerprice: 550 €
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Sold 289-5380 Tourmaline: beautiful dark green tourmaline of ca. 4.16ct Ca. 10.7 x 9 x 6.9 mm, ca. 4.16 ct, oval cut, faceted, high clarity. Hammerprice: 900 €
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Sold 289-5381 Tourmaline: vivid green tourmaline in emerald cut, ca. 13.1ct, rare quality Ca. 14.19 x 12.15 x 7.87 mm, ca. 13.1 ct, faceted on both sides, eye-clean. Hammerprice: 2.100 €
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Sold 289-5382 Tourmaline: large tourmaline of excellent quality and rare size, ca. 27.5ct Ca. 20.35 x 16.26 x 8.73 mm, ca. 27.5 ct, emerald cut, very high clarity, eye-clean, origin presumed to be Africa, faceted on both sides. Hammerprice: 2.100 €
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Sold 289-5383 Rubellite: very fine rubellite – red tourmaline – ca. 10.53ct Ca. 18.09 x 11.2 x 7.38 mm, red tourmaline, also known as rubellite, oval cut, eye-clean, facetted on both sides, a valuable red variety of tourmaline. Hammerprice: 650 €
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Sold 289-5384 Topaz: very beautiful golden topaz in a pear cut, ca. 18.08 ct Ca. 17.11 x 12.97 x 10.33 mm, ca. 18.08 ct, double-sided faceted pear cut, very beautiful topaz, orange-brown with very high brilliance and clarity, ca. 18.08 ct. Hammerprice: 2.300 €
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289-5385 Tourmaline: very rare colour-change tourmaline – orange-pink, very rare size of 27.38ct Ca. 26 x 14.4 x 10mm, oval, faceted, very good cut, resulting in fantastic brilliance, eye-clean; depending on the light, the colour shifts between apricot/orange and pink, rare, fantastic quality! now only: 1.800 €
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289-5386 Chrysoberyl: natural "NO HEAT" chrysoberyl, 8.48ct, yellow-orange, GRS certificate Ca. 12.5 x 9.6 x 7.5 mm, 8.48 ct, eye-clean, rare in this quality and size. now only: 1.000 €
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289-5387 Tourmaline in a rare colour and size, 27ct Ca. 17.5 x 17.5 x 12.9 mm, very rare colour, very good brilliance. now only: 2.200 €
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289-5388 Beryl: impressive, rare golden beryl of ca. 90ct Ca. 26 x 23 x 19 mm, ca. 90 ct, eye-clean, vibrant yellowish/greenish/golden colour. Golden beryls are the golden-yellow variety of aquamarine, a natural beryl. now only: 3.500 €
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289-5389 Opal: Australian black boulder opal of ca. 5.8ct Ca. 15.3 x 11.5 x 3.7 mm, ca. 5.8 ct, flat cabochon cut, beautiful play of colour. now only: 500 €
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Sold 289-5390 Beautiful opal cabochon of ca. 8.5ct, Australia Ca. 16.76 x 14.29 x 6 mm, ca. 8.5 ct, oval cabochon cut, excellent play of colour, iridescent green, blue and pink tones. Hammerprice: 600 €
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Sold 289-5391 Iridescent opal cabochon of ca. 3.3ct, Lightning Ridge black opal Ca. 10.87 x 9.3 x 5.45 mm, ca. 3.3 ct, iridescent green and blue tones, very intense play of colour. Hammerprice: 650 €
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289-5392 Opal: very intensely coloured Lightning Ridge black opal, three-coloured, GRS certificate Ca. 9.7 x 7.7 x 4.3mm, 1.85ct, intense play of colour, violet-blue-green, untreated, confirmation of origin Lightning Ridge Australia, with GRS certificate. now only: 1.000 €
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289-5393 Opal: valuable, large opal cabochon of ca. 35.7ct Ca. 29.9 x 24.3 x 11.62mm, ca. 35.7ct, loose opal in a teardrop cabochon cut, iridescent shades of green, blue and pink, very fine condition. now only: 600 €
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Sold 289-5394 Opal: very beautiful opal cabochon of ca. 12.6ct, Australia Ca. 23.78 x 13.33 x 5.91 mm, ca. 12.6 ct, oval cabochon cut, excellent play of colour, iridescent shades of green, blue and pink. Hammerprice: 700 €
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Sold 289-5395 Exceptionally beautiful opal cabochon of ca. 18.05ct, stunning play of colour Ca. 27.7 x 19.5 x 5.02 mm, ca. 18.05 ct, oval cabochon cut, iridescent shades of green, blue and pink, crystal opal from Australia. Hammerprice: 1.200 €
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Sold 289-5396 Opal cabochon with superb play of colour, ca. 10.9ct, Australia Ca. 18.72 x 13.82 x 6.44 mm, ca. 10.9 ct, oval cabochon cut, delicate opalescent play of colour, iridescent shades of green, blue and pink. Hammerprice: 600 €
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289-5397 Opal: rare Australian crystal opal weighing 16ct, rare violet and orange tones Ca. 25 x 18 mm, 16 ct, solid opal with intense play of colour and very rare colours. now only: 1.000 €
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Sold 289-5398 Opal: large Mexican fire opal, top quality, ca. 7ct Ca. 16 x 10.6 x 7.6 mm, very intense colour, eye-clean. Hammerprice: 600 €
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Sold 289-5399 Fire opal: Impressive, large, natural fire opal of fine quality, ca. 5.6 ct Ca. 12.91 x 10.61 x 8.36 mm, ca. 5.6 ct, oval cut with facets on both sides, very beautiful red/orange fire opal of rare quality. Hammerprice: 600 €
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