Agate Necklace

Agate is a microcrystalline form of quartz that can be found in many different colors. Agates are often named after the location of origin or their physical characteristics. Agates were first discovered in the river named Sicily in the early 3000 BC. Ancient Romans believed that the stone has divine powers that provide protection against any negative energy. Also known for its healing powers, agate was used for ointments and lotions. Many suggest wearing agate necklaces around the neck or keep them around at least 3 feet around you for their healing power to work.

This is one of the reasons why Agate necklaces are very popular. The agate stone also comes in different patterns and intriguing structures which makes for more amazing designs than any other gemstone. One of the rarest gemstones is ‘The Ellensburg Blue’ which is also a form of agate. Like the stone, the necklaces made from these particular stones are rare and very hard to find since they are composed of layers of blue chalcedony.

Bidsquare offers agate necklaces for sale from renowned jewelry houses, including Mimi Milano, Erwin Pauly, Georg Jensen, Ferragamo, Van Cleef, and more. Antique and vintage agate necklaces are also available in an array of styles such as Victorian, Roman, Modernist, and Revivalist at online auction for sale on our platform at Bidsquare.

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  • 14kt Yellow Gold 0.35ctw Diamond Pendant
    Estimate
    $600 - $1,200

    14kt Yellow Gold 0.35ctw Diamond Pendant

    Est.
    $600 - $1,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $600
  • 14kt Rose Gold 0.35ctw Diamond Pendant
    Estimate
    $600 - $1,200

    14kt Rose Gold 0.35ctw Diamond Pendant

    Est.
    $600 - $1,200
    Robinhood Auctions
    0 Bids
    Starting Bid
    $600
  • 22 Sterling Silver Jewelry Pcs., incl. Native American
    Estimate
    $350 - $450

    22 Sterling Silver Jewelry Pcs., incl. Native American

    Est.
    $350 - $450
    Case Auctions
    0 Bids
    Starting Bid
    $175
  • Van Cleef & Arpels Vintage Alhambra 18K Yellow gold and Blue Agate long necklace, 20 motifs
    Estimate
    $12,000 - $22,000

    Van Cleef & Arpels Vintage Alhambra 18K Yellow gold and...

    Est.
    $12,000 - $22,000
  • .925 Sterling Silver Alternating Link Necklace with Silver & Agate Pendant
    Estimate
    $75 - $175

    .925 Sterling Silver Alternating Link Necklace with Sil...

    Est.
    $75 - $175
  • .925 Sterling Silver Flat Byzantine Chain with Agate Pendant
    Estimate
    $105 - $130

    .925 Sterling Silver Flat Byzantine Chain with Agate Pe...

    Est.
    $105 - $130
  • .925 Sterling Silver Twisted Chain and Oval Agate Pendant
    Estimate
    $95 - $115

    .925 Sterling Silver Twisted Chain and Oval Agate Penda...

    Est.
    $95 - $115
  • Victorian Agate and 14K Cameo Pendant
    Estimate
    $800 - $1,000

    Victorian Agate and 14K Cameo Pendant

    Est.
    $800 - $1,000
  • Fabulous.925 Sterling Silver Polised and Faceted Multicolored Specimen Stone Necklace
    Estimate
    $125 - $175

    Fabulous.925 Sterling Silver Polised and Faceted Multic...

    Est.
    $125 - $175
  • Antique Agate Bead Necklace.
    Estimate
    $100 - $150

    Antique Agate Bead Necklace.

    Est.
    $100 - $150
  • Roman Style Agate Beads Necklace.
    Estimate
    $50 - $100

    Roman Style Agate Beads Necklace.

    Est.
    $50 - $100
  • Agate and 14K Necklace
    Estimate
    $100 - $300

    Agate and 14K Necklace

    Est.
    $100 - $300
  • (3) Agate and Malachite Necklaces
    Estimate
    $50 - $300

    (3) Agate and Malachite Necklaces

    Est.
    $50 - $300
  • Two dyed agate bead necklaces,
    Estimate
    GBP£50 - GBP£70 $62.50 - $87.50

    Two dyed agate bead necklaces,

    Est.
    GBP£50 - GBP£70 $62.50 - $87.50
  • Agate and Turquoise Necklace
    Estimate
    $200 - $400

    Agate and Turquoise Necklace

    Est.
    $200 - $400
  • CABOCHOM AGATE BIB NECKLACE 27"
    Estimate
    $125 - $175

    CABOCHOM AGATE BIB NECKLACE 27"

    Est.
    $125 - $175
  • A VICTORIAN BANDED AGATE NECKLACE, graduated oval banded agate spaced by do
    Estimate
    GBP£600 - GBP£800 $750 - $1,000

    A VICTORIAN BANDED AGATE NECKLACE, graduated oval bande...

    Est.
    GBP£600 - GBP£800 $750 - $1,000
  • AN AGATE CAMEO PENDANT NECKLACE
    Estimate
    GBP£2,000 - GBP£3,000 $2,500 - $3,750

    AN AGATE CAMEO PENDANT NECKLACE

    Est.
    GBP£2,000 - GBP£3,000 $2,500 - $3,750
  • Antique Agate Bead Necklace.
    Estimate
    $150 - $200

    Antique Agate Bead Necklace.

    Est.
    $150 - $200
  • Antique Islamic Banded Agate Bead Necklace.
    Estimate
    $200 - $300

    Antique Islamic Banded Agate Bead Necklace.

    Est.
    $200 - $300
  • Roman Style Agate Beads Necklace.
    Estimate
    $50 - $100

    Roman Style Agate Beads Necklace.

    Est.
    $50 - $100
  • Agate/Carnelian Stone Fashion Necklace
    Estimate
    $10 - $2,500

    Agate/Carnelian Stone Fashion Necklace

    Est.
    $10 - $2,500
  • JEWELRY. Islamic Engraved Agate Aqeeq Necklace.
    Estimate
    $300 - $500

    JEWELRY. Islamic Engraved Agate Aqeeq Necklace.

    Est.
    $300 - $500
  • Roman Style Banded Agate Beads Necklace.
    Estimate
    $50 - $100

    Roman Style Banded Agate Beads Necklace.

    Est.
    $50 - $100
  • Roman Style Banded Agate Beads Necklace.
    Estimate
    $50 - $100

    Roman Style Banded Agate Beads Necklace.

    Est.
    $50 - $100
  • Lot of 2 Banded Agate Beads Necklace.
    Estimate
    $50 - $100

    Lot of 2 Banded Agate Beads Necklace.

    Est.
    $50 - $100
  • Agate and 14K Necklace
    Estimate
    $200 - $500

    Agate and 14K Necklace

    Est.
    $200 - $500
  • Turquoise, Agate and Silver Necklace
    Estimate
    $100 - $300

    Turquoise, Agate and Silver Necklace

    Est.
    $100 - $300
  • 14k Carved Agate Chain Necklace
    Estimate
    $8,500 - $9,500

    14k Carved Agate Chain Necklace

    Est.
    $8,500 - $9,500
  • Pink Banded Agate Statement Necklace
    Estimate
    $200 - $400

    Pink Banded Agate Statement Necklace

    Est.
    $200 - $400
  • (2) Orange Agate and Red Jasper Beaded Necklaces
    Estimate
    $50 - $100

    (2) Orange Agate and Red Jasper Beaded Necklaces

    Est.
    $50 - $100
  • Navajo Herbert Tsosie Tiger Eye Agate Necklace
    Estimate
    $450 - $900

    Navajo Herbert Tsosie Tiger Eye Agate Necklace

    Est.
    $450 - $900
  • Arts & Crafts Agate, Sterling Silver Necklace
    Estimate
    $300 - $500

    Arts & Crafts Agate, Sterling Silver Necklace

    Est.
    $300 - $500
  • Group of Three Chinese Carved Necklaces, Agate, Tourmaline, Turquoise
    Estimate
    $300 - $400

    Group of Three Chinese Carved Necklaces, Agate, Tourmal...

    Est.
    $300 - $400
  • 14K Yellow Gold & Lace Agate Bead Necklace
    Estimate
    $300 - $500

    14K Yellow Gold & Lace Agate Bead Necklace

    Est.
    $300 - $500
  • Navajo Calvin Tom Silver Montana Agate Necklace
    Estimate
    $300 - $600

    Navajo Calvin Tom Silver Montana Agate Necklace

    Est.
    $300 - $600
  • GRAECO-BACTRIAN AGATE NECKLACE
    Estimate
    GBP£450 - GBP£900 $562.50 - $1,125

    GRAECO-BACTRIAN AGATE NECKLACE

    Est.
    GBP£450 - GBP£900 $562.50 - $1,125
  • 14K Plated  Agate, Onyx & Rhodochrosite Necklace
    Estimate
    $100 - $200

    14K Plated Agate, Onyx & Rhodochrosite Necklace

    Est.
    $100 - $200
  • 14K Plated  Agate, Onyx & Rhodochrosite Necklace
    Estimate
    $100 - $200

    14K Plated Agate, Onyx & Rhodochrosite Necklace

    Est.
    $100 - $200
  • Vilaiwan Beaded Pink Agate Bib Necklace
    Estimate
    $300 - $500

    Vilaiwan Beaded Pink Agate Bib Necklace

    Est.
    $300 - $500
  • Citrine, Topaz, Amethyst and Agate Necklace
    Estimate
    $80 - $150

    Citrine, Topaz, Amethyst and Agate Necklace

    Est.
    $80 - $150
  • Beautiful 14K Gold and Faceted Agate Necklace
    Estimate
    $10 - $200

    Beautiful 14K Gold and Faceted Agate Necklace

    Est.
    $10 - $200
  • Citrine, Topaz, Amethyst and Agate Necklace
    Estimate
    $80 - $150

    Citrine, Topaz, Amethyst and Agate Necklace

    Est.
    $80 - $150
  • Navajo Nevada Blue & Agate Sterling Necklace
    Estimate
    $650 - $1,000

    Navajo Nevada Blue & Agate Sterling Necklace

    Est.
    $650 - $1,000
  • BACTRIAN NECKLACE WITH BANDED AGATE BEADS
    Estimate
    GBP£3,000 - GBP£6,000 $3,750 - $7,500

    BACTRIAN NECKLACE WITH BANDED AGATE BEADS

    Est.
    GBP£3,000 - GBP£6,000 $3,750 - $7,500
  • Citrine, Topaz, Amethyst and Agate Necklace
    Estimate
    $80 - $150

    Citrine, Topaz, Amethyst and Agate Necklace

    Est.
    $80 - $150
  • Five-Strand Graduated Moss Agate Bead Necklace
    Estimate
    $250 - $350

    Five-Strand Graduated Moss Agate Bead Necklace

    Est.
    $250 - $350
  • Agate and Jasper Gold Tone Beaded Necklace
    Estimate
    $10 - $200

    Agate and Jasper Gold Tone Beaded Necklace

    Est.
    $10 - $200