Your search for "rg" in Watches / Jewellery returned: 403 hits - Cortrie Special-Auctions for Watches and Jewellery in Hamburg

Your search for "rg" in Watches / Jewellery returned: 403 hits

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 €

294-5236 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 €

294-5244 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 €

294-5246 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 €

294-5250 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 €

294-5254 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 €