Products

9576 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.

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1.90 Carat Blue SRI LANKAN Round Sapphire

1.90 Carat Blue SRI LANKAN Round Sapphire

492600

$4,926 USD

Unit price / per

1.90 Carat Blue SRI LANKAN Round Sapphire

492600

$4,926 USD

Unit price / per

50502370656555

A magnificent pair of blue, round shape Sapphire gemstones, total weight 1.90cts. The stones have a scintillating fire and can be purchased as a loose pair or set as a pair of earrings in a Leibish setting style or custom design.

1.90 Carat Fancy Yellow Radiant Diamond SI1 GIA

1.90 Carat Fancy Yellow Radiant Diamond SI1 GIA

1455900

$14,559 USD

Unit price / per

1.90 Carat Fancy Yellow Radiant Diamond SI1 GIA

1455900

$14,559 USD

Unit price / per

50501704778027

1.90 carat, Fancy Yellow, radiant diamond with SI1 clarity, graded by GIA. The stone has Very Good polish and Good symmetry.

1.90 Carat Light Pink Cushion Diamond SI1 GIA

1.90 Carat Light Pink Cushion Diamond SI1 GIA

11980000

$119,800 USD

Unit price / per

1.90 Carat Light Pink Cushion Diamond SI1 GIA

11980000

$119,800 USD

Unit price / per

50501752422699

1.90 carat, Light Pink, cushion shape diamond with SI1 clarity, graded by GIA. A fine pink diamond that will look superb when set. The stone has Good polish and Fair symmetry.

1.9 Carat Natural Black Emerald Diamond GIA

1.90 Carat Natural Black Emerald Diamond GIA

375440

$3,754 USD

Unit price / per

1.90 Carat Natural Black Emerald Diamond GIA

375440

$3,754 USD

Unit price / per

51446739927339

This stunning 1.90 carat natural Black Emerald diamond is GIA certified (7512098235). Measurements: 6.25 x 6.02 x 5.15. A beautiful natural diamond.

1.9 Carat Natural Black Round Diamond GIA

1.90 Carat Natural Black Round Diamond GIA

379620

$3,796 USD

Unit price / per

1.90 Carat Natural Black Round Diamond GIA

379620

$3,796 USD

Unit price / per

51446733766955

This stunning 1.90 carat natural Black Round diamond is GIA certified (6217555462). Measurements: 7.70 x 7.74 x 4.9. A beautiful natural diamond.

1.90 Carat Natural Black Round Diamond GIA

379620

$3,796 USD

Unit price / per

1.90 Carat Natural Black Round Diamond GIA

379620

$3,796 USD

Unit price / per

51446739501355

This stunning 1.90 carat natural Black Round diamond is GIA certified (2235481151). Measurements: 7.72 x 7.75 x 4.85. A beautiful natural diamond.

1.90 Carat O-P Emerald Diamond VS2 GIA

942900

$9,429 USD

Unit price / per

1.90 Carat O-P Emerald Diamond VS2 GIA

942900

$9,429 USD

Unit price / per

50663966900523

This 1.90 carat light yellow emerald-cut diamond features VS2 clarity and is GIA certified. Its excellent polish and symmetry enhance its natural luster, making it a refined choice for those seeking a vibrant, high-quality yellow diamond.

1.90 Carat Red MOZAMBIQUE Round Ruby CD

1492000

$14,920 USD

Unit price / per

1.90 Carat Red MOZAMBIQUE Round Ruby CD

1492000

$14,920 USD

Unit price / per

50502282707243

This stunning 1.90 carat ruby showcases a captivating intense red hue in a classic round cut. Certified by CD, this Mozambique gemstone displays exceptional vibrancy and brilliance, making it an outstanding choice for fine jewelry. The lively color saturation and quality craftsmanship ensure a truly remarkable red gemstone for discerning collectors.

1.91 Carat Fancy Orangy Pink HEART Diamond IF GIA

1.91 Carat Fancy Orangy Pink HEART Diamond IF GIA

29042000

$290,420 USD

Unit price / per

Call for price

1.91 Carat Fancy Orangy Pink HEART Diamond IF GIA

29042000

$290,420 USD

Unit price / per

Call for price

50501740134699

1.91 carat, Fancy Orangy Pink, heart shape diamond with IF clarity, graded by GIA. A magnificent pink diamond with a perfect IF clarity and lovely rose pink color face up. The stone has Good polish and Fair symmetry.

1.91 Carat Fancy White Lozenge Diamond GIA

1.91 Carat Fancy White Lozenge Diamond GIA

544800

$5,448 USD

Unit price / per

1.91 Carat Fancy White Lozenge Diamond GIA

544800

$5,448 USD

Unit price / per

50501883625771

1.91 carat, Fancy White, rhomboid diamond, graded by GIA. A wonderful white diamond with the classic milky appearance.

1.91 Carat Green COLOMBIAN Emerald Emerald CD

1.91 Carat Green COLOMBIAN Emerald Emerald CD

2754670

$27,547 USD

Unit price / per

1.91 Carat Green COLOMBIAN Emerald Emerald CD

2754670

$27,547 USD

Unit price / per

50577783292203

A stunning 1.91 carat Colombian emerald displaying vivid green hues. CD certified for authenticity and quality, from the muzo mining district. This premium gemstone showcases the classic beauty and prestige associated with Colombian emeralds, making it an exceptional choice for fine jewelry.

1.91 Carat Natural Black Round Diamond GIA

1.91 Carat Natural Black Round Diamond GIA

381618

$3,816 USD

Unit price / per

1.91 Carat Natural Black Round Diamond GIA

381618

$3,816 USD

Unit price / per

51446735733035

This stunning 1.91 carat natural Black Round diamond is GIA certified (2231078091). Measurements: 7.68 x 7.80 x 5.05. A beautiful natural diamond.

1.91 Carat Natural Black Round Diamond GIA

377416

$3,774 USD

Unit price / per

1.91 Carat Natural Black Round Diamond GIA

377416

$3,774 USD

Unit price / per

51492344561963

This stunning 1.91 carat natural Black Round diamond is GIA certified (5234110007). Measurements: 7.19 x 7.23 x 5.48. A beautiful natural diamond.

1.91 Carat Red BURMESE Emerald Ruby CD

1385200

$13,852 USD

Unit price / per

1.91 Carat Red BURMESE Emerald Ruby CD

1385200

$13,852 USD

Unit price / per

50502107398443

1.91 carat, Pigeon Blood, Emerald shape Ruby, graded by CD. A gorgeous Pigeon Blood Gemstone that has a captivating color.

1.91 Carat Red BURMESE Emerald Ruby GRS

888600

$8,886 USD

Unit price / per

1.91 Carat Red BURMESE Emerald Ruby GRS

888600

$8,886 USD

Unit price / per

50502309773611

This exceptional 1.91 carat ruby showcases a vivid red, pigeon's blood hue in a classic emerald cut, certified by GRS. Originating from Burma's renowned gemstone deposits, this fine specimen displays remarkable brilliance and saturation, making it a distinguished choice for the discerning collector or jeweler seeking authentic quality and timeless elegance.

1.91 Carat Red MOZAMBICAN Round Ruby CD

1786300

$17,863 USD

Unit price / per

1.91 Carat Red MOZAMBICAN Round Ruby CD

1786300

$17,863 USD

Unit price / per

50502279069995

1.91 carat, Vivid Red, Round shape Ruby, graded by CD. An impressive Red Gemstone that's simply dazzling to the eye.

1.92 Carat Blue SRI LANKAN Round Sapphire

1.92 Carat Blue SRI LANKAN Round Sapphire

645520

$6,455 USD

Unit price / per

1.92 Carat Blue SRI LANKAN Round Sapphire

645520

$6,455 USD

Unit price / per

50502365184299

1.92 carat, Blue, round shape Sapphire. A superb blue gemstone that is simply a terrific stone.

1.92 Carat Blue SRI LANKAN Round Sapphire

449680

$4,497 USD

Unit price / per

1.92 Carat Blue SRI LANKAN Round Sapphire

449680

$4,497 USD

Unit price / per

50502365741355

A superb pair of blue, round shape Sapphire gemstones, total weight 1.92cts. The stones have a lovely shape and can be purchased as a loose pair or set as a pair of earrings in a Leibish setting style or custom design.

1.92 Carat Blue SRI LANKAN Round Sapphire

497680

$4,977 USD

Unit price / per

1.92 Carat Blue SRI LANKAN Round Sapphire

497680

$4,977 USD

Unit price / per

50502368657707

An amazing pair of blue, round shape Sapphire gemstones, total weight 1.92cts. The stones have lots of life and can be purchased as a loose pair or set as a pair of earrings in a Leibish setting style or custom design.

1.92 Carat Blue SRI LANKAN Round Sapphires Pair

1.92 Carat Blue SRI LANKAN Round Sapphires Pair

449700

$4,497 USD

Unit price / per

1.92 Carat Blue SRI LANKAN Round Sapphires Pair

449700

$4,497 USD

Unit price / per

50577774444843

Discover unmatched elegance with this 1.92-carat pair of round Sri Lankan blue sapphires, perfect for creating timeless, stunning jewelry pieces.

1.92 Carat Fancy Black Pear Diamond GIA

336400

$3,364 USD

Unit price / per

1.92 Carat Fancy Black Pear Diamond GIA

336400

$3,364 USD

Unit price / per

50501612634411

1. 92 carat pear shape diamond, graded by GIA. A super natural black diamond with a fine luster.

1.92 Carat Fancy Light Yellow Cushion Diamond SI1 GIA

1.92 Carat Fancy Light Yellow Cushion Diamond SI1 GIA

754000

$7,540 USD

Unit price / per

1.92 Carat Fancy Light Yellow Cushion Diamond SI1 GIA

754000

$7,540 USD

Unit price / per

50501834408235

1.92 carat, Fancy Light Yellow, Cushion shape Diamond with SI1 clarity, graded by GIA. A magnificent Yellow Diamond with an arresting look. The stone has Very Good polish and Good symmetry.

1.92 Carat Green COLOMBIAN Emerald Emerald MUZO

1.92 Carat Green COLOMBIAN Emerald Emerald MUZO

321040

$3,210 USD

Unit price / per

1.92 Carat Green COLOMBIAN Emerald Emerald MUZO

321040

$3,210 USD

Unit price / per

50577783816491

This 1.92 carat Colombian emerald, certified by MUZO, showcases rich green color and exceptional clarity, making it a rare and elegant gem to cherish.