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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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    • Design Your Own Ring
      • Start With Setting
      • Start With A Diamond
    • Choose By Style
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  • 2.21 Ct. F Color VVS2 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥345,291 JPY
    Sale price ¥345,291 JPY Regular price
    Unit price /  per 
  • 2.4 Ct. E Color VS1 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥183,312 JPY
    Sale price ¥183,312 JPY Regular price
    Unit price /  per 
  • 2.51 Ct. G Color VS2 Clarity Oval Shape Lab Grown Diamond

    2.51 Ct. G Color VS2 Clarity Oval Shape Lab Grown Diamond

    2.51 Ct. G Color VS2 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥147,555 JPY
    Sale price ¥147,555 JPY Regular price
    Unit price /  per 
  • 2.53 Ct. E Color VVS2 Clarity Oval Shape Lab Grown Diamond

    2.53 Ct. E Color VVS2 Clarity Oval Shape Lab Grown Diamond

    2.53 Ct. E Color VVS2 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥228,389 JPY
    Sale price ¥228,389 JPY Regular price
    Unit price /  per 
  • 2.77 Ct. D Color VVS1 Clarity Oval Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥525,773 JPY
    Sale price ¥525,773 JPY Regular price
    Unit price /  per 
  • 2.8 Ct. E Color VS1 Clarity Oval Shape Lab Grown Diamond

    2.8 Ct. E Color VS1 Clarity Oval Shape Lab Grown Diamond

    2.8 Ct. E Color VS1 Clarity Oval Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥260,730 JPY
    Sale price ¥260,730 JPY Regular price
    Unit price /  per 
  • 3.01 Ct. E Color VVS2 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥203,491 JPY
    Sale price ¥203,491 JPY Regular price
    Unit price /  per 
  • 3.02 Ct. F Color VS1 Clarity Emerald Shape Lab Grown Diamond

    3.02 Ct. F Color VS1 Clarity Emerald Shape Lab Grown Diamond

    3.02 Ct. F Color VS1 Clarity Emerald Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥231,263 JPY
    Sale price ¥231,263 JPY Regular price
    Unit price /  per 
  • 3.25 Ct. H Color VS1 Clarity Cushion Shape Lab Grown Diamond

    3.25 Ct. H Color VS1 Clarity Cushion Shape Lab Grown Diamond

    3.25 Ct. H Color VS1 Clarity Cushion Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥273,585 JPY
    Sale price ¥273,585 JPY Regular price
    Unit price /  per 
  • 4.08 Ct. E Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    4.08 Ct. E Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    4.08 Ct. E Color VVS2 Clarity Cushion Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥329,282 JPY
    Sale price ¥329,282 JPY Regular price
    Unit price /  per 
  • 4.11 Ct. F Color VVS2 Clarity Radiant Shape Lab Grown Diamond

    4.11 Ct. F Color VVS2 Clarity Radiant Shape Lab Grown Diamond

    4.11 Ct. F Color VVS2 Clarity Radiant Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥275,636 JPY
    Sale price ¥275,636 JPY Regular price
    Unit price /  per 
  • 5.01 Ct. F Color VVS2 Clarity Round Shape Lab Grown Diamond

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

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

    Vendor:
    Precious Lab
    Regular price ¥334,832 JPY
    Sale price ¥334,832 JPY Regular price
    Unit price /  per 
  • 5.81 Ct. F Color VS2 Clarity Round Shape Lab Grown Diamond

    5.81 Ct. F Color VS2 Clarity Round Shape Lab Grown Diamond

    5.81 Ct. F Color VS2 Clarity Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥296,276 JPY
    Sale price ¥296,276 JPY Regular price
    Unit price /  per 
  • white gold

    Alecia Trilogy Diamond Ring

    Alecia Trilogy Diamond Ring

    Vendor:
    Precious Lab
    Regular price ¥110,000 JPY
    Sale price ¥110,000 JPY Regular price
    Unit price /  per 
  • Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond - Precious Lab

    Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond

    Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond

    Vendor:
    Precious Lab
    Regular price ¥154,818 JPY
    Sale price ¥154,818 JPY Regular price
    Unit price /  per 
  • Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond (Certificate No: 717540236)

    Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond (Certificate No: 717540236)

    Alecia Trilogy Diamond Ring With 0.5 Ct. Round Shape Lab Grown Diamond (Certificate No: 717540236)

    Vendor:
    Precious Lab
    Regular price ¥195,194 JPY
    Sale price ¥195,194 JPY Regular price
    Unit price /  per 
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