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Welcome to Precious Lab — Japan's Leading Lab-Grown Diamond Jeweler

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Precious Lab
  • DIAMOND
  • ENGAGEMENT RING
    • Start With A Ring Setting
    • Start With A Diamond
  • JEWELLERY
    • Wedding Band
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Welcome to the fine world of Lab Grown Jewelry. Browse All Our Ring Designs.

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239 products

  • 0.3 Ct. D Color SI2 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color SI2 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color SI2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥33,773 JPY
    Sale price ¥33,773 JPY Regular price
    Unit price /  per 
  • 0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥32,882 JPY
    Sale price ¥32,882 JPY Regular price
    Unit price /  per 
  • 0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥32,160 JPY
    Sale price ¥32,160 JPY Regular price
    Unit price /  per 
  • 0.3 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.3 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥31,643 JPY
    Sale price ¥31,643 JPY Regular price
    Unit price /  per 
  • 0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥33,006 JPY
    Sale price ¥33,006 JPY Regular price
    Unit price /  per 
  • 0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥33,006 JPY
    Sale price ¥33,006 JPY Regular price
    Unit price /  per 
  • 0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥33,006 JPY
    Sale price ¥33,006 JPY Regular price
    Unit price /  per 
  • 0.31 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    0.31 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥36,979 JPY
    Sale price ¥36,979 JPY Regular price
    Unit price /  per 
  • 0.32 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.32 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.32 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥36,287 JPY
    Sale price ¥36,287 JPY Regular price
    Unit price /  per 
  • 0.32 Ct. D カラー VS1 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    0.32 Ct. D カラー VS1 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    0.32 Ct. D カラー VS1 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    Vendor:
    Precious Lab
    Regular price ¥40,048 JPY
    Sale price ¥40,048 JPY Regular price
    Unit price /  per 
  • 0.32 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

    0.32 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

    0.32 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥31,639 JPY
    Sale price ¥31,639 JPY Regular price
    Unit price /  per 
  • 0.33 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.33 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    0.33 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥31,639 JPY
    Sale price ¥31,639 JPY Regular price
    Unit price /  per 
  • 0.33 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.33 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.33 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥31,643 JPY
    Sale price ¥31,643 JPY Regular price
    Unit price /  per 
  • 0.33 Ct. D カラー VS2 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    0.33 Ct. D カラー VS2 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    0.33 Ct. D カラー VS2 クラリティ ラウンド 形状 ラボグロウン・ダイヤモンド

    Vendor:
    Precious Lab
    Regular price ¥31,643 JPY
    Sale price ¥31,643 JPY Regular price
    Unit price /  per 
  • 0.34 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.34 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    0.34 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥32,051 JPY
    Sale price ¥32,051 JPY Regular price
    Unit price /  per 
  • 0.34 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    0.34 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    0.34 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥30,294 JPY
    Sale price ¥30,294 JPY Regular price
    Unit price /  per 
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