Jewellery - Cortrie Special-Auctions for Watches and Jewellery in Hamburg

294-5215 Ring: modern, delicate white gold eternity ring with brilliant-cut diamonds, unworn, ca. 5.15 ct according to the original label Ca. Ø17.5mm, RG54, ca. 4.6g, 18K white gold, ca. 4.5mm wide, set all round with 16 brilliant-cut diamonds totalling ca. 5.15ct, each ca. 0.32ct, colour in the Wesselton range, clarity SI–I, as good as new. 3.000 € - 6.000 €

294-5216 Ring: exclusive, as good as new platinum memoir ring with 16 very valuable diamonds in a rare Asscher cut, ca. 8.14 ct, unworn designer jewellery by Cirari Approx. Ø17.5mm, RG54, ca. 6.2g, platinum, ca. 4.5mm wide, beautifully handcrafted in the style of Graff, signed Cirari, set all the way round with a total of 16 very fine diamonds in the so-called Asscher cut, 16 half-carats of very fine quality, total diamond weight ca. 8.14ct, clarity predominantly in the VS range, colour in the Wesselton range, stone weight engraved on the shank, as good as new and unworn. 7.500 € - 30.000 €

294-5217 Ring: modern platinum designer ring with a large fancy yellow diamond of 1.34 ct, IGI certificate Ca. Ø16.5mm, ring size 52, ca. 13.5g, platinum, solid designer ring, visible area set with white brilliant-cut diamonds, ca. 1ct, with the yellow teardrop diamond at the centre; according to the IGI certificate, 1.34ct Fancy Yellow/SI, very high quality, goldsmith's work as good as new, both stone weights hallmarked, all stones natural, VAT is refundable. 3.500 € - 10.000 €

294-5218 Wristwatch: extremely luxurious ladies’/men’s watch, platinum, Boucheron limited edition 6/26, original price 2008 “ON REQUEST” Ca. 31 x 45 mm, Reflet XL model in an exceptional version in solid platinum with luxurious diamond setting, automatic movement, diamond-set dial, date display, original Boucheron leather strap with diamond setting, unworn. This limited edition of just 26 pieces was not officially listed in the catalogue, but was available only on request. This special edition was created to mark Boucheron’s 150th anniversary. Estimated current production cost at Boucheron: €100,000–120,000. 20.000 € - 40.000 €

294-5219 Ring: extremely heavy brilliant-cut diamond solitaire ring, handcrafted by Ernst Loosli, Zurich, 3.3 ct K/VVS Approx. 17.5 mm in diameter, ring size 55, ca. 32 g, 18-carat white gold, high-quality brilliant-cut diamond, 3.3 ct K/VVS, handcrafted by Ernst Loosli, Zurich; current replacement value ca. €70,000. 13.000 € - 35.000 €

294-5220 A valuable, as good as new diamond ring featuring a 4.02 ct green-yellow fancy diamond and 2 white emerald-cut diamonds Ca. Ø17.5mm, RG54, ca. 5.3g, 18K white gold, centrally set with a 4.02ct fancy yellow diamond, clarity VS1, excellent and very good quality in polish and symmetry, no fluorescence; the weight of the fancy yellow diamond is engraved on the shank; also flanked by 2 beautiful emerald-cut diamonds totalling ca. 0.62ct; unworn. 14.000 € - 60.000 €

294-5221 Wristwatch: rare, elegant, extra-flat Patek Philippe in white gold, Ref. 3566, 1970s Ca. 28 x 28 mm, 18K white gold, Ref. 3566, hand-wound, top-quality calibre with the Hallmark of Geneva, blue, brushed dial with white gold indexes and white gold hands, original leather strap, 18K white gold clasp, very good condition, in working order. This elegant men’s watch is a rare find in the white gold version with the blue dial – a sought-after model now worn by both men and women! 6.500 € - 8.500 €

294-5222 Necklace: exclusive, as good as new tanzanite and diamond necklace featuring a large 15.15 ct tanzanite in the rare ‘Intense’ grade, IGI report Approx. 46 cm long, ca. 10.9 g, 18K gold, pendant ca. 33 x 14 mm (including eyelet), set with a very beautiful tanzanite measuring ca. 18.95 x 14.18 x 7.93 mm, 15.15 ct, oval-cut, intense violet/blue, transparent, beautiful fire; also set with 7 diamonds totalling ca. 0.4 ct; the weight of the tanzanite on the pendant is hallmarked; all stones are natural; as good as new and unworn; intricate handcrafted work; the piece comes with a current IGI report from 2021. Buyers with a delivery address outside the EU will not have to pay this tax, and the price will be reduced by 19%. 4.000 € - 15.000 €

294-5223 Stud earrings: extremely luxurious tanzanite earrings, AAA tanzanites totalling 14.2 ct Approx. 16.5 x 15.5 mm, ca. 10 g, 18K white gold, heart-shaped, top-grade tanzanites, each over 7 ct, framed by very fine natural brilliant-cut diamonds totalling ca. 1 ct, top-class goldsmith's work, as good as new and unworn. Tanzanites of this quality are traded internationally at ca. US$1,000 per carat. The replacement value of these earrings is over €20,000. 4.000 € - 15.000 €

294-5224 A highly decorative designer gold bracelet from Gucci, high-quality branded jewellery Ca. 20 cm long, ca. 40.8 g, 18K yellow gold, anchor motif ca. 8 mm wide, set with 4 different pendants, some enamelled, all with carabiner clasps, signed Gucci, sought-after designer jewellery with Gucci box. 4.500 € - 6.500 €

294-5225 Bracelet: very high-quality and substantial sapphire/brilliant-cut diamond goldsmith’s bracelet, 18K yellow gold Ca. 19 cm long, ca. 7 mm wide, ca. 41 g, 18K yellow gold, solid curb chain, set with 3 beautiful brilliant-cut diamonds totalling ca. 0.9ct, colour in the Wesselton range, clarity in the SI range, plus 4 sapphires with a total weight of ca. 3.2ct, clasp with double safety clasp, very solid goldsmith's work. 4.700 € - 6.000 €

294-5226 High-quality sapphire and brilliant-cut diamond goldsmith's ring, natural Ceylon sapphire, ca. 3.67 ct, ‘NO HEAT’ report Ca. Ø17.5mm, RG54, ca. 12.4g, 18K yellow gold, tapered design, thickness varies from top to bottom, approx. 11mm wide at the front, featuring a fine, natural and untreated sapphire at the centre, stone weight of 3.67ct hallmarked on the shank, origin Sri Lanka, transparent oval star/step cut, no evidence of heat treatment, furthermore, the ring shoulders are set with a total of 40 brilliant-cut diamonds, the total weight of which is 0.68 ct, also hallmarked; the sapphire comes with a DSEF report dated 2019. 2.700 € - 4.500 €

294-5227 Pendant: finely crafted by hand with a large, natural blue diamond of ca. 11 ct, with a gemmological report Pendant ca. Ø23mm, ca. 10.3g, 18K yellow gold, diamond ca. Ø14.5mm, ca. 11ct, clarity I, treated, including a gemmological report dated March 2026. 8.500 € - 15.000 €

294-5228 Necklace: beautiful tourmaline necklace in various colour combinations, handcrafted, ca. 600 carats Approx. 44 cm long, ca. 133.8 g in weight, with a flowing design, tourmaline buttons ranging from ca. Ø10 to 15 mm, screw clasp and connecting elements in 18K yellow gold, tourmalines in various colours, all in a finely facetted rondelle cut, strung on fine steel wires, in very good condition. 5.000 € - 8.000 €

294-5229 Ring: One-of-a-kind, vintage goldsmith's ring with an impressive 10.2 ct emerald, IGI certificate Ca. Ø 17 mm, ring size 53, ca. 10.2 g, 18K yellow gold, solid goldsmith's work, natural emerald of very rare quality, transparent ‘Intense Green – Minor’, presumably from Colombia, rare triangle-sugarloaf cut, 10.2 ct, set on the shoulders with 2 very fine natural pear-cut diamonds, each approx. 0.36 ct, estimated original cost ca. 60,000 DM. Buyers with a delivery address outside the EU will not have to pay this tax, and the price will be reduced by 19%. 5.000 € - 15.000 €

294-5230 Wristwatch: high-quality Jaeger-LeCoultre Reverso Duoface Grand Taille Night & Day, 18K yellow gold Ca. 26 x 42 mm, 18K gold, Reverso reversible case with reference number 270.1.54 and serial number 1892782, hand-wound, front dial in silver with blued steel hands and black numerals, off-centre seconds, second dial in black with luminous numerals and luminous hands, day/night indicator, worn leather strap with 18K folding clasp, movement intact. 8.000 € - 12.000 €

294-5231 Necklace: delicate gold snake chain with a very high-quality solitaire/brilliant-cut diamond pendant, ca. 3.5 ct Necklace approx. 45.5 cm long, ca. 13.7 g, 14K yellow gold, round cross-section, ca. Ø2.5 mm, solid pendant ca. Ø15 mm, so-called ‘freely hanging’ design, 18K gold, set with a valuable brilliant-cut diamond ca. Ø10 mm, ca. 5.9 mm high, ca. 3.5 ct, virtually colourless, in the I–J range, clarity in the VS–SI range, sensational brilliance, very high-quality and formerly expensive bespoke goldsmith’s piece. 15.000 € - 50.000 €

294-5232 Earrings: high-quality solitaire brilliant-cut diamond stud earrings, fine brilliant-cut diamonds of ca. 1.6 ct each Ca. Ø10mm, ca. 5.8g, 18K yellow gold; the stoppers are as well set with very beautiful brilliant-cut diamonds, each ca. 1.6ct, colour in the H–I range, clarity in the VS range, solid goldsmith's work. 5.000 € - 25.000 €

294-5233 Ring: Brilliant-cut diamond goldsmith's ring, 18K gold, ca. 2.4 ct diamonds Approx. Ø18mm, size 56, ca. 4.9g, 18K yellow gold, ca. 8mm wide on the front, set with 5 brilliant-cut diamonds totalling ca. 2.4ct, colour in the Wesselton range, clarity in the VS range, central stone ca. 1ct, total diamond weight hallmarked on the shank, vintage goldsmith's work. 4.000 € - 6.000 €

294-5234 Ring: solid brilliant-cut diamond goldsmith's ring, ca. 1.25ct Ca. Ø17mm, ring size 53, ca. 10.7g, 18K yellow gold, brilliant-cut diamond in a solid white gold setting, ca. Ø7mm, ca. 1.25ct, colour in the Wesselton range, clarity in the VS range, very high-quality goldsmith's work. 5.000 € - 6.000 €

294-5235 Opal: very beautiful opal cabochon of ca. 50.5 ct, stunning play of colour Ca. 33.73 x 23.1 x 13.54 mm, ca. 50.5 ct, loose cabochon-cut opal, iridescent shades of green, blue and pink. 1.000 € - 2.500 €

294-5236 Opal: valuable, large opal cabochon of ca. 42.5 ct, pear cut Ca. 45.33 x 21.85 x 9.43 mm, ca. 42.5 ct, loose opal in a teardrop cabochon cut, iridescent shades of green, blue and pink, in very fine condition. 800 € - 1.500 €

294-5237 Opal: valuable, large opal cabochon weighing ca. 35.5 ct Ca. 29.9 x 24.3 x 11.62 mm, ca. 35.5 ct, loose opal in a teardrop cabochon cut, iridescent shades of green, blue and pink, in very fine condition. 700 € - 1.500 €

294-5238 Opal: Australian black boulder opal, ca. 5.8 ct Ca. 15.3 x 11.5 x 3.7 mm, ca. 5.8 ct, flat cabochon cut, beautiful play of colour. 425 € - 1.000 €

294-5239 Spinel: natural, untreated spinel with an interesting colour variation, ‘NO HEAT’, ca. 6 ct, report Ca. 10.94 x 10.91 x 6.34 mm, ca. 6.007 ct, octagonal cut, colour red-violet, facetted on both sides, eye-clean, incl. ÖGEMG report, replacement value ca. €10,800. 2.500 € - 5.000 €

294-5240 Tourmaline: very beautiful rubellite – red tourmaline – of ca. 4.55 ct Ca. 9.83 x 9.75 x 6.92 mm, ca. 4.55 ct, cushion cut, red tourmaline, also known as rubellite, a valuable red variety of tourmaline. 900 € - 1.500 €

294-5241 Loose natural fancy diamond in a square emerald cut, 1.01 ct, greyish-greenish-yellow, IGI report Ca. 5.43 x 5.43 x 3.38 mm, 1.01 ct, Natural Fancy Greyish-Greenish-Yellow, clarity SI2, no fluorescence, 2 x Very Good, shrink-wrapped, including IGI report dated 2025. 400 € - 1.500 €

294-5242 Radiant-cut diamond, 1.00 ct, clarity IF, GIA certificate Ca. 6.22 x 4.72 x 3.43 mm, 1.00 ct, Colour I, Clarity IF, no fluorescence, including brief certificate. 1.500 € - 3.000 €

294-5243 Sapphire: grey/blue natural star sapphire cabochon, ca. 3.15 ct Ca. 9.14 x 8.02 x 4.3 mm, ca. 3.15 ct, cabochon cut, fine quality. 425 € - 1.000 €

294-5244 Sapphire: large, natural orange sapphire of ca. 3.21 ct Ca. 11.2 x 8.13 x 4 mm, ca. 3.21 ct, oval cut, facetted, very good clarity. 425 € - 2.000 €

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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