Products

EXCLUSIVE NEW YORK VIEWINGS

Dec 9–10, 2025 | By Appointment Only

Meet Mr. Leibish Polnauer in person and discover the treasures he keeps closest to him.

BOOK YOUR VIEWING
10.88 Carat Fancy Deep Brownish Yellow HEART Diamond SI2 GIA
10.88 Carat Fancy Deep Brownish Yellow HEART Diamond SI2 GIA
10.88 Carat Fancy Deep Brownish Yellow HEART Diamond SI2 GIA

10.88 Carat Fancy Deep Brownish Yellow HEART Diamond SI2 GIA

$141,540 USD

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10.92 Carat Black Marquise Diamond
10.92 Carat Black Marquise Diamond
10.92 Carat Black Marquise Diamond

10.92 Carat Natural Black Marquise Diamond GIA

$19,394 USD

10.96 Carat Blue SRI LANKAN Oval Sapphire
10.96 Carat Blue SRI LANKAN Oval Sapphire
10.96 Carat Blue SRI LANKAN Oval Sapphire
10.96 Carat Blue SRI LANKAN Oval Sapphire

10.96 Carat Blue SRI LANKAN Oval Sapphire

$25,856 USD

10.98 Carat Fancy Yellow Cushion Diamonds VVS2
10.98 Carat Fancy Yellow Cushion Diamonds VVS2
10.98 Carat Fancy Yellow Cushion Diamonds VVS2

10.98 Carat Fancy Yellow Cushion Diamonds VVS2

$153,820 USD

10CT+ J Color Oval Stud Earrings

10CT+ J Color Oval Stud Earrings

$130,100 USD

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11 Stone Multicolored Diamond Bezel Band Ring
11 Stone Multicolored Diamond Bezel Band Ring
11 Stone Multicolored Diamond Bezel Band Ring

11 Stone Multicolored Diamond Bezel Band Ring

$1,495 USD

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11 Stone Multicolored Diamond Stackable Bezel Band Ring
11 Stone Multicolored Diamond Stackable Bezel Band Ring
11 Stone Multicolored Diamond Stackable Bezel Band Ring

11 Stone Multicolored Diamond Stackable Bezel Band Ring

$1,850 USD

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11 Stone Multicolored Diamond Stackable Bezel Band Ring

11 Stone Multicolored Diamond Stackable Bezel Band Ring

$1,950 USD

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11.01 Carat Blue BURMESE Oval Sapphire CD
11.01 Carat Blue BURMESE Oval Sapphire CD
11.01 Carat Blue BURMESE Oval Sapphire CD
11.01 Carat Blue BURMESE Oval Sapphire CD
11.01 Carat Blue BURMESE Oval Sapphire CD

11.01 Carat Blue BURMESE Oval Sapphire CD

$200,482 USD

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11.07 Carat Orange BRAZILLIAN Emerald Tourmaline GWLAB
11.07 Carat Orange BRAZILLIAN Emerald Tourmaline GWLAB
11.07 Carat Orange BRAZILLIAN Emerald Tourmaline GWLAB
11.07 Carat Orange BRAZILLIAN Emerald Tourmaline GWLAB

11.07 Carat Orange BRAZILLIAN Emerald Tourmaline GWLAB

$8,956 USD

11.09 Carat Yellow SRI LANKAN Round Sapphire CD
11.09 Carat Yellow SRI LANKAN Round Sapphire CD
11.09 Carat Yellow SRI LANKAN Round Sapphire CD
11.09 Carat Yellow SRI LANKAN Round Sapphire CD

11.09 Carat Yellow SRI LANKAN Round Sapphire CD

$28,934 USD

11.17 Carat Blue MOZAMBICAN Emerald Aquamarine
11.17 Carat Blue MOZAMBICAN Emerald Aquamarine
11.17 Carat Blue MOZAMBICAN Emerald Aquamarine
11.17 Carat Blue MOZAMBICAN Emerald Aquamarine

11.17 Carat Blue MOZAMBICAN Emerald Aquamarine

$3,674 USD

11.23 Carat Blue SRI LANKAN Cushion Sapphire CD
11.23 Carat Blue SRI LANKAN Cushion Sapphire CD
11.23 Carat Blue SRI LANKAN Cushion Sapphire CD
11.23 Carat Blue SRI LANKAN Cushion Sapphire CD

11.23 Carat Blue SRI LANKAN Cushion Sapphire CD

$102,293 USD

11.29 Carat Fancy Yellow Cushion Diamond VS1 GIA
11.29 Carat Fancy Yellow Cushion Diamond VS1 GIA
11.29 Carat Fancy Yellow Cushion Diamond VS1 GIA

11.29 Carat Fancy Yellow Cushion Diamond VS1 GIA

$293,640 USD

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11.36 Carat Green ZAMBIAN Emerald Emerald
11.36 Carat Green ZAMBIAN Emerald Emerald
11.36 Carat Green ZAMBIAN Emerald Emerald
11.36 Carat Green ZAMBIAN Emerald Emerald

11.36 Carat Green ZAMBIAN Emerald Emerald

$135,284 USD

11.36 Carat Black Pear Diamond
11.36 Carat Black Pear Diamond
11.36 Carat Black Pear Diamond

11.36 Carat Natural Black Pear Diamond GIA

$29,263 USD

11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA
11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA
11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA
11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA
11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA

11.38 Carat Fancy Yellow Radiant Diamond VS2 GIA

$232,252 USD

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11.39 Carat Black Round Diamond
11.39 Carat Black Round Diamond
11.39 Carat Black Round Diamond

11.39 Natural Carat Black Round Diamond GIA

$22,507 USD

11.40 Carat Yellow SRI LANKAN Emerald Sapphire CGL
11.40 Carat Yellow SRI LANKAN Emerald Sapphire CGL
11.40 Carat Yellow SRI LANKAN Emerald Sapphire CGL
11.40 Carat Yellow SRI LANKAN Emerald Sapphire CGL

11.40 Carat Yellow SRI LANKAN Emerald Sapphire CGL

$17,770 USD

11.50 Carat Yellow SRI LANKAN Cushion Sapphire CD
11.50 Carat Yellow SRI LANKAN Cushion Sapphire CD
11.50 Carat Yellow SRI LANKAN Cushion Sapphire CD
11.50 Carat Yellow SRI LANKAN Cushion Sapphire CD

11.50 Carat Yellow SRI LANKAN Cushion Sapphire CD

$16,200 USD

11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB

11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB

$11,092 USD

11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB
11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB

11.57 Carat Blue TANZANIAN Pear Tanzanite GWLAB

$9,935 USD

11.6 Carat Black Round Diamond
11.6 Carat Black Round Diamond
11.6 Carat Black Round Diamond

11.60 Carat Natural Black Round Diamond GIA

$23,177 USD

11.64 Carat Blue SRI LANKAN Oval Sapphire AGL
11.64 Carat Blue SRI LANKAN Oval Sapphire AGL
11.64 Carat Blue SRI LANKAN Oval Sapphire AGL
11.64 Carat Blue SRI LANKAN Oval Sapphire AGL

11.64 Carat Blue SRI LANKAN Oval Sapphire AGL

$118,600 USD

11.69 Carat Fancy Deep Orange -Brown Pear Diamond VVS1 GIA
11.69 Carat Fancy Deep Orange -Brown Pear Diamond VVS1 GIA
11.69 Carat Fancy Deep Orange -Brown Pear Diamond VVS1 GIA

11.69 Carat Fancy Deep Orange -Brown Pear Diamond VVS1 GIA

$134,535 USD

11.85 Carat Blue AFRICAN Oval Aquamarine
11.85 Carat Blue AFRICAN Oval Aquamarine
11.85 Carat Blue AFRICAN Oval Aquamarine
11.85 Carat Blue AFRICAN Oval Aquamarine

11.85 Carat Blue AFRICAN Oval Aquamarine

$3,655 USD

11.90 Carat Green COLOMBIAN Pear Emerald CD
11.90 Carat Green COLOMBIAN Pear Emerald CD
11.90 Carat Green COLOMBIAN Pear Emerald CD

11.90 Carat Green COLOMBIAN Pear Emerald CD

$50,794 USD

11.92 Carat Green COLOMBIAN Pear Emerald
11.92 Carat Green COLOMBIAN Pear Emerald
11.92 Carat Green COLOMBIAN Pear Emerald
11.92 Carat Green COLOMBIAN Pear Emerald

11.92 Carat Green COLOMBIAN Pear Emerald

$34,668 USD

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