All Products

  • The Signature Meridian Split Ring AG & CO Jewellery

    The Signature Meridian Split Ring

    The Signature Meridian Split Ring

    From $4,399.00 AUD
    From $4,399.00 AUD

    The Signature Meridian Split Ring

    Exclusive Signature Moissanite Collection

    D Color · VVS1 Clarity · GRA Certified

    A refined evolution of our Signature Meridian design, emphasizing clean lines, balance, and architectural elegance. This updated edition features a polished split shank with no pavé, allowing the focus to remain on the striking center moissanite and its elegant half-moon side stones. Crafted with a low-profile donut setting, the ring sits comfortably on the finger while maintaining a bold and sophisticated silhouette. Double prongs provide both security and a refined finishing detail.

    Details

    • Center Stone: Moissanite Diamond 4ct
    • Side Stones: Half-Moon Diamonds
    • Color: D
    • Clarity: VVS1
    • Setting: Low-Profile Donut Setting
    • Prongs: Double Prongs
    • Band: Polished Split Shank (No Pavé)
    • Metal: 14k or 18k Gold / Platinum
    • Metal Color: Yellow Gold or White Gold
    • Certification: GRA Certified with Laser Inscription

    This design is fully customizable to your specifications. For bespoke requests or questions, please email contact@agcojewellery.com
  • 2.53 Carat F-VVS2 Cushion Lab Diamond AG & CO Jewellery

    2.53 Carat F-VVS2 Cushion Lab Diamond

    2.53 Carat F-VVS2 Cushion Lab Diamond

    $2,871.00 AUD
    $2,871.00 AUD $2,871.00 AUD
    ID: 697677bff4c706181001380d
    Vendor Name: Nivoda
    Stock Number: 1C5D439B5
    Lab Report Number: LG760549429
    Added on 03 February 2026 by Ring Builder App
  • AG & CO Diamond Ring Cleaning Pen Brush AG & CO Jewellery

    AG & CO Diamond Ring Cleaning Pen Brush

    AG & CO Diamond Ring Cleaning Pen Brush

    $89.00 AUD
    $89.00 AUD

    AG & CO Diamond Ring Cleaning Pen

    Keep your jewellery sparkling between professional cleans with the AG & CO Diamond Ring Cleaning Pen.

    Specially formulated for diamonds, gemstones, engagement rings, wedding bands, and fine jewellery, this convenient cleaning pen gently removes everyday oils, lotions, dirt, and residue to restore brilliance and shine.

    The precision brush applicator reaches intricate settings, hidden halos, pavé details, and hard-to-clean areas, making it easy to keep your favourite pieces looking their best wherever you go.

    Features

    • Professional jewellery Cleaning formula
    • Soft precision brush applicator
    • Safe for Natural Diamonds, Lab Diamonds, Moissanite, Gemstones, Gold, Platinum, & Silver
    • Removes dirt, oils, lotions, and everyday residue
    • Compact and travel-friendly
    • Quick and easy to use

    How to Use

    1. Twist the pen to dispense the cleaning solution.
    2. Gently brush your jewellery.
    3. Rinse with warm water.
    4. Dry with a soft, lint-free cloth.

    Perfect for engagement rings, wedding bands, diamond jewellery, moissanite jewellery, and everyday jewellery care.
  • 0.30 Carat J-VS1 Marquise Cut Diamond AG & CO Jewellery

    0.30 Carat J-VS1 Marquise Cut Diamond

    0.30 Carat J-VS1 Marquise Cut Diamond

    $1,616.00 AUD
    $1,616.00 AUD $1,616.00 AUD
    ID: 698262be91ea445507053c87
    Vendor Name: Nivoda
    Stock Number: 254AE633C
    Lab Report Number: 1525035338
    Added on 04 February 2026 by Ring Builder App
  • 2.97 Carat D-VS1 Round Lab Diamond AG & CO Jewellery

    2.97 Carat D-VS1 Round Lab Diamond

    2.97 Carat D-VS1 Round Lab Diamond

    $3,896.00 AUD
    $3,896.00 AUD $3,896.00 AUD
    ID: 69581d3d7491241f62098201
    Vendor Name: Nivoda
    Stock Number: 4C5B008C0
    Lab Report Number: LG700536002
    Added on 04 February 2026 by Ring Builder App
  • 2.99 Carat D-VS1 Round Lab Diamond AG & CO Jewellery

    2.99 Carat D-VS1 Round Lab Diamond

    2.99 Carat D-VS1 Round Lab Diamond

    $3,982.00 AUD
    $3,982.00 AUD $3,982.00 AUD
    ID: 695ebd0e4d1af6359e05b69b
    Vendor Name: Nivoda
    Stock Number: 7FFFA59B8
    Lab Report Number: LG700585555
    Added on 04 February 2026 by Ring Builder App
  • 8.20 Carat H-VVS2 Emerald Lab Diamond AG & CO Jewellery

    8.20 Carat H-VVS2 Emerald Lab Diamond

    8.20 Carat H-VVS2 Emerald Lab Diamond

    $5,405.00 AUD
    $5,405.00 AUD $5,405.00 AUD
    ID: 69812623ef9ad23e0608578b
    Vendor Name: Nivoda
    Stock Number: 309DE1520
    Lab Report Number: LG683582306
    Added on 04 February 2026 by Ring Builder App
  • 1.40 Carat G-VS2 Round Cut Diamond AG & CO Jewellery

    1.40 Carat G-VS2 Round Cut Diamond

    1.40 Carat G-VS2 Round Cut Diamond

    $15,941.00 AUD
    $15,941.00 AUD $15,941.00 AUD
    ID: 697f1475ae0b38a08506b26f
    Vendor Name: Nivoda
    Stock Number: 86BB64178
    Lab Report Number: 2526552172
    Added on 05 February 2026 by Ring Builder App
  • 3.89 Carat F-VS1 Cushion Lab Diamond AG & CO Jewellery

    3.89 Carat F-VS1 Cushion Lab Diamond

    3.89 Carat F-VS1 Cushion Lab Diamond

    $3,086.00 AUD
    $3,086.00 AUD $3,086.00 AUD
    ID: 6983a4b2464cfeab9a100358
    Vendor Name: Nivoda
    Stock Number: DFDC1E081
    Lab Report Number: LG755531117
    Added on 05 February 2026 by Ring Builder App
  • 2.52 Carat D-VS1 Round Lab Diamond AG & CO Jewellery

    2.52 Carat D-VS1 Round Lab Diamond

    2.52 Carat D-VS1 Round Lab Diamond

    $3,356.00 AUD
    $3,356.00 AUD $3,356.00 AUD
    ID: 695f54bafd3d3453a603dc58
    Vendor Name: Nivoda
    Stock Number: D8F9528E6
    Lab Report Number: LG741523387
    Added on 06 February 2026 by Ring Builder App
  • 2.35 Carat Oval Cut Blue Sapphire AG & CO Jewellery

    2.35 Carat Oval Cut Blue Sapphire

    2.35 Carat Oval Cut Blue Sapphire

    $3,120.00 AUD
    $3,120.00 AUD $3,120.00 AUD
    ID: 6969feb6604717c6010c46c5
    Vendor Name: Nivoda
    Stock Number: A0E1ECA5B
    Lab Report Number: A0E1ECA5B
    Added on 08 February 2026 by Ring Builder App
  • 2.77 Carat D-FL Round Cut Diamond AG & CO Jewellery

    2.77 Carat D-FL Round Cut Diamond

    2.77 Carat D-FL Round Cut Diamond

    $95,754.00 AUD
    $95,754.00 AUD $95,754.00 AUD
    ID: 6986f162cc15ec61b102f2e9
    Vendor Name: Nivoda
    Stock Number: 6035F2810
    Lab Report Number: 6522659401
    Added on 08 February 2026 by Ring Builder App
  • 1.02 Carat D-VVS2 Round Lab Diamond AG & CO Jewellery

    1.02 Carat D-VVS2 Round Lab Diamond

    1.02 Carat D-VVS2 Round Lab Diamond

    $1,175.00 AUD
    $1,175.00 AUD $1,175.00 AUD
    ID: 6975c2fb6f0f250009015fbf
    Vendor Name: Nivoda
    Stock Number: 84EFED75B
    Lab Report Number: LG737545545
    Added on 08 February 2026 by Ring Builder App
  • 1.02 Carat I-VS2 Radiant Cut Diamond AG & CO Jewellery

    1.02 Carat I-VS2 Radiant Cut Diamond

    1.02 Carat I-VS2 Radiant Cut Diamond

    $6,392.00 AUD
    $6,392.00 AUD $6,392.00 AUD
    ID: 6984fb5a5ea49311db02e640
    Vendor Name: Nivoda
    Stock Number: 60B232033
    Lab Report Number: 1518872126
    Added on 08 February 2026 by Ring Builder App
  • 1.00 Carat E-VVS2 Oval Lab Diamond AG & CO Jewellery

    1.00 Carat E-VVS2 Oval Lab Diamond

    1.00 Carat E-VVS2 Oval Lab Diamond

    $1,521.00 AUD
    $1,521.00 AUD $1,521.00 AUD
    ID: 697bc8f32718462c890abbd0
    Vendor Name: Nivoda
    Stock Number: AB6DDC73B
    Lab Report Number: LG761551267
    Added on 10 February 2026 by Ring Builder App
  • 2.55 Carat D-IF Emerald Lab Diamond AG & CO Jewellery

    2.55 Carat D-IF Emerald Lab Diamond

    2.55 Carat D-IF Emerald Lab Diamond

    $10,515.00 AUD
    $10,515.00 AUD $10,515.00 AUD
    ID: 698cd92c32a379784d0e3737
    Vendor Name: Nivoda
    Stock Number: 5367489CD
    Lab Report Number: LG723503573
    Added on 13 February 2026 by Ring Builder App
  • 1.21ct Oval Lab Grown Diamond (Colour F, Clarity VVS2, IGI Certified)

    1.21ct Oval Lab Grown Diamond (Colour F, Clarity VVS2, IGI Certified)

    1.21ct Oval Lab Grown Diamond (Colour F, Clarity VVS2, IGI Certified)

    $1,105.68 AUD
    $1,105.68 AUD
    • Type: Lab Grown Diamond
    • Shape: Oval
    • Carat: 1.21
    • Colour: F
    • Clarity: VVS2
    • Polish: Excellent
    • Symmetry: Excellent
    • Fluorescence: None
    • Measurements: 8.49x6.04x3.85mm
    • L/W Ratio: 1.41
    • Table: 61%
    • Depth: 63.7%
    • Certificate: IGI
  • 1.55 Carat E-VS1 Marquise Lab Diamond AG & CO Jewellery

    1.55 Carat E-VS1 Marquise Lab Diamond

    1.55 Carat E-VS1 Marquise Lab Diamond

    $1,666.00 AUD
    $1,666.00 AUD $1,666.00 AUD
    ID: 698912f8934964a2c409989c
    Vendor Name: Nivoda
    Stock Number: 20688EEE2
    Lab Report Number: LG757518511
    Added on 13 February 2026 by Ring Builder App
  • 1.91 Carat G-VVS2 Oval Lab Diamond AG & CO Jewellery

    1.91 Carat G-VVS2 Oval Lab Diamond

    1.91 Carat G-VVS2 Oval Lab Diamond

    $1,605.00 AUD
    $1,605.00 AUD $1,605.00 AUD
    ID: 698cd92e32a379784d0e5441
    Vendor Name: Nivoda
    Stock Number: F4AE4F3EE
    Lab Report Number: LG755533804
    Added on 14 February 2026 by Ring Builder App
  • 1.00 Carat F-SI1 Oval Cut Diamond AG & CO Jewellery

    1.00 Carat F-SI1 Oval Cut Diamond

    1.00 Carat F-SI1 Oval Cut Diamond

    $5,367.00 AUD
    $5,367.00 AUD $5,367.00 AUD
    ID: 69805bc05605346a8908baef
    Vendor Name: Nivoda
    Stock Number: 72F923F5C
    Lab Report Number: 7538186945
    Added on 15 February 2026 by Ring Builder App
  • 6.51 Carat D-VVS2 Marquise Lab Diamond AG & CO Jewellery

    6.51 Carat D-VVS2 Marquise Lab Diamond

    6.51 Carat D-VVS2 Marquise Lab Diamond

    $18,986.00 AUD
    $18,986.00 AUD $18,986.00 AUD
    ID: 6992766ffeb7ea10e70b3e69
    Vendor Name: Nivoda
    Stock Number: EFC7367A9
    Lab Report Number: LG744501536
    Added on 16 February 2026 by Ring Builder App
  • 10.03 Carat E-VVS2 Radiant Lab Diamond AG & CO Jewellery

    10.03 Carat E-VVS2 Radiant Lab Diamond

    10.03 Carat E-VVS2 Radiant Lab Diamond

    $14,638.00 AUD
    $14,638.00 AUD $14,638.00 AUD
    ID: 698792be5fdc567b7902c56b
    Vendor Name: Nivoda
    Stock Number: 857B21B91
    Lab Report Number: LG667455945
    Added on 16 February 2026 by Ring Builder App
  • The Valora Pink Diamond Ring AG & CO Jewellery

    The Valora

    The Valora

    $4,950.00 AUD
    $4,950.00 AUD

    Elegance layered in luminous detail.

    The Valora ring features a striking emerald-cut center stone, framed by a delicate double halo of blush pink and brilliant white diamonds. The soft pink inner halo enhances the centre stone’s clarity, while the outer white diamond halo amplifies its brilliance. Set on a refined yellow gold band, this design blends vintage inspiration with modern sophistication, creating a bold yet timeless statement.

    Valora, derived from the Latin valere meaning strength, represents enduring love and refined beauty. The harmonious contrast of blush and white brilliance symbolises passion balanced with purity — a love that is both powerful and graceful.

    • Setting Style: Double Halo
    • Center Stone: 2.00CT Emerald-Cut Lab Grown Diamond (Customisable)
    • Accent Stones: Round Brilliant White Diamonds & Pink Diamonds
    • Metal: 18K Yellow Gold (Customisable)
    • Band Width: Approx. 2.0mm

    Please note: Metal options also include 10K, 14K, and 950 platinum. Diamond size is fully customisable (smaller or larger available). Please contact us for pricing

     
  • The Valora Pink Diamond Ring AG & CO Jewellery

    The Valora Pink Diamond Ring

    The Valora Pink Diamond Ring

    $5,195.00 AUD
    $5,195.00 AUD

    Elegance layered in luminous detail.

    The Valora ring features a striking emerald-cut center stone, framed by a delicate double halo of blush pink and brilliant white diamonds. The soft pink inner halo enhances the centre stone’s clarity, while the outer white diamond halo amplifies its brilliance. Set on a refined yellow gold band, this design blends vintage inspiration with modern sophistication, creating a bold yet timeless statement.

    Valora, derived from the Latin valere meaning strength, represents enduring love and refined beauty. The harmonious contrast of blush and white brilliance symbolises passion balanced with purity — a love that is both powerful and graceful.

    • Setting Style: Double Halo
    • Center Stone: 2.00CT Emerald-Cut Lab Grown Diamond (Customisable)
    • Accent Stones: Round Brilliant White Diamonds & Pink Diamonds
    • Metal: 18K Yellow Gold (Customisable)
    • Band Width: Approx. 2.0mm

    Please note: Metal options also include 10K, 14K, and 950 platinum. Diamond size is fully customisable (smaller or larger available). Please contact us for pricing