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

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  • LAB GROWN DIAMOND
    • Classic Diamonds
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    • Modern Diamonds
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    • Ready To Ship Jewelry
      • Eternity Rings
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  • ENGAGEMENT RING
    • Design Your Own Ring
      • Start With Setting
      • Start With A Diamond
    • Choose By Style
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Welcome to the fine world of Lab Grown Jewelry. Browse All Our Ring Designs.

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  • 1.05 Ct. G Color VVS2 Clarity Oval Shape Lab Grown Diamond

    1.05 Ct. G Color VVS2 Clarity Oval Shape Lab Grown Diamond

    1.05 Ct. G Color VVS2 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥74,389 JPY
    Sale price ¥74,389 JPY Regular price
    Unit price /  per 
  • 1.09 Ct. D Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    1.09 Ct. D Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    1.09 Ct. D Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥76,021 JPY
    Sale price ¥76,021 JPY Regular price
    Unit price /  per 
  • 1.1 Ct. D Color VVS1 Clarity Oval Shape Lab Grown Diamond

    1.1 Ct. D Color VVS1 Clarity Oval Shape Lab Grown Diamond

    1.1 Ct. D Color VVS1 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥105,764 JPY
    Sale price ¥105,764 JPY Regular price
    Unit price /  per 
  • 1.12 Ct. E Color VVS1 Clarity Emerald Shape Lab Grown Diamond - Precious Lab

    1.12 Ct. E Color VVS1 Clarity Emerald Shape Lab Grown Diamond

    1.12 Ct. E Color VVS1 Clarity Emerald Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥94,855 JPY
    Sale price ¥94,855 JPY Regular price
    Unit price /  per 
  • 1.25 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.25 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.25 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥78,808 JPY
    Sale price ¥78,808 JPY Regular price
    Unit price /  per 
  • 1.31 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.31 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.31 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥152,471 JPY
    Sale price ¥152,471 JPY Regular price
    Unit price /  per 
  • 1.35 Ct. D Color VS1 Clarity Oval Shape Lab Grown Diamond

    1.35 Ct. D Color VS1 Clarity Oval Shape Lab Grown Diamond

    1.35 Ct. D Color VS1 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥103,395 JPY
    Sale price ¥103,395 JPY Regular price
    Unit price /  per 
  • 1.36 Ct. G Color VVS2 Clarity Emerald Shape Lab Grown Diamond

    1.36 Ct. G Color VVS2 Clarity Emerald Shape Lab Grown Diamond

    1.36 Ct. G Color VVS2 Clarity Emerald Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥80,837 JPY
    Sale price ¥80,837 JPY Regular price
    Unit price /  per 
  • 1.4 Ct. D Color VVS2 Clarity Oval Shape Lab Grown Diamond - Precious Lab

    1.4 Ct. D Color VVS2 Clarity Oval Shape Lab Grown Diamond

    1.4 Ct. D Color VVS2 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥110,144 JPY
    Sale price ¥110,144 JPY Regular price
    Unit price /  per 
  • 1.52 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥115,537 JPY
    Sale price ¥115,537 JPY Regular price
    Unit price /  per 
  • 1.6 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥318,046 JPY
    Sale price ¥318,046 JPY Regular price
    Unit price /  per 

  • 1.62 Ct. G Color SI1 Clarity Emerald Shape Lab Grown Diamond

    1.62 Ct. G Color SI1 Clarity Emerald Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥82,746 JPY
    Sale price ¥82,746 JPY Regular price
    Unit price /  per 
  • 1.7 Ct. F Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.7 Ct. F Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.7 Ct. F Color VVS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥118,464 JPY
    Sale price ¥118,464 JPY Regular price
    Unit price /  per 

  • 1.88 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

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

    Vendor:
    Precious Lab
    Regular price ¥146,452 JPY
    Sale price ¥146,452 JPY Regular price
    Unit price /  per 
  • 1.91 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.91 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    1.91 Ct. D Color VVS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥158,044 JPY
    Sale price ¥158,044 JPY Regular price
    Unit price /  per 
  • 2.01 Ct. F Color VS1 Clarity Round Shape Lab Grown Diamond

    2.01 Ct. F Color VS1 Clarity Round Shape Lab Grown Diamond

    2.01 Ct. F Color VS1 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥282,469 JPY
    Sale price ¥282,469 JPY Regular price
    Unit price /  per 
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