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Limited Time Offer - 20% Off Everything
  1. Engagement Rings/
  2. Solitaires/
  3. Round

Round Classic Six Prong Solitaire

  • White Gold Round Classic Six Prong Solitaire Diamond Engagement Ring featuring Diamonds (Main View)
    Shown with 2ct in 18k White Gold
  • Lab Diamonds Round Classic Six Prong Solitaire Diamond Engagement Ring in White Gold (Profile View)
    Shown with 2ct in 18k White Gold
  • Man Made Diamonds Round Classic Six Prong Solitaire in White Gold (Side View)
    Shown with 2ct in 18k White Gold
  • platinum 3 ct round six prong lab diamond solitaire engagement ring ada diamonds design ad 067 macto
    Shown with 3ct in Platinum
  • 3.0 Carat Diamonds set in Platinum Round Classic Six Prong Solitaire Diamond Engagement Ring (Profile View)
    Shown with 3ct in Platinum
  • 3.75 Carat Diamonds set in Platinum Round Classic Six Prong Solitaire Diamond Engagement Ring (Side View)
    Shown with 3.75ct in Platinum
  • platinum 4 ct round six prong solitaire engagement ring lab diamonds ada diamonds design ad 067
    Shown with 3.75ct in Platinum
  • platinum 4 ct round six prong lab diamond solitaire engagement ring platinum ada diamonds design ad 067 macro
    Shown with 3.75ct in Platinum
  • High Quality 4.0 ct Diamonds Round Classic Six Prong Solitaire in Platinum & Yellow Gold (Main View)
    Shown with 4ct in Platinum & 18k Yellow Gold
  • 4.0 ctw Diamonds Round Classic Six Prong Solitaire Diamond Engagement Ring in Platinum & Yellow Gold (Profile View)
    Shown with 4ct in Platinum & 18k Yellow Gold
  • Yellow Gold Round Classic Six Prong Solitaire featuring 2.0 Carat Diamonds (Main View)
    Shown with 2ct in 14k Yellow Gold
  • 2.0 ctw Created Diamonds Round Classic Six Prong Solitaire in Yellow Gold (Profile View)
    Shown with 2ct in 14k Yellow Gold
  • Platinum Round Classic Six Prong Solitaire Diamond Engagement Ring featuring 2.75 Carat Diamonds (Side View)
    Shown with 2.75ct in Platinum
  • lab diamond custom wedding set with 1.5ct round six prong solitaire and shared prong half band ada diamonds design ad 067 ad109 and ad 295
    Shown with 1.25ct in Platinum & 18k Yellow Gold
  • Platinum One Carat Tiffany Setting Lab Diamond Engagement Ring Ada Diamonds Design Number AD-067 On Model
    Shown with 1ct in Platinum
  • platinum 1.25ct round six prong lab diamond solitaire engagement ring ada diamonds design ad 067 on model
    Shown with 1.25ct in Platinum
  • Platinum & Rose Gold Round Classic Six Prong Solitaire Diamond Engagement Ring featuring 1.5 Carat Lab Created Diamonds (Main View)
    Shown with 1.5ct in Platinum & 18k Rose Gold
  • 18k White Gold 1.75 Carat Round Brilliant Six Prong Solitaire Ring made with Lab Diamonds Ada Diamonds Design Number AD-67 on Model
    Shown with 1.75ct in 18k White Gold
  • 18k yellow gold two carat round lab diamond six prong solitaire engagement ring ada diamonds design ad 067 on model
    Shown with 2ct in 18k Yellow Gold
  • platinum 2.25ct round lab grown diamond six prong solitaire engagement ring ada diamonds design ad067 on model
    Shown with 2.25ct in Platinum
  • 2.5 Carat Lab Diamonds set in Platinum Round Classic Six Prong Solitaire Diamond Engagement Ring (Main View)
    Shown with 2.5ct in Platinum
  • 2.75 Carat Round Brilliant Classic Six Prong Solitaire Lab Diamond Engagement Ring On Model Design AD-067
    Shown with 2.75ct in Platinum
  • 2.75 ct Diamonds set in Yellow Gold Round Classic Six Prong Solitaire (Main View)
    Shown with 2.75ct in 18k Yellow Gold
  • two-tone yellow gold and platinum 3 carat lab diamond six prong solitaire engagement ring
    Shown with 3ct in Platinum & 14k Yellow Gold
  • 3.25ct round lab diamond in six prong solitaire engagement ring ada diamonds design ad 067 on model
    Shown with 3.25ct in Platinum & 18k Yellow Gold
  • platinum round 3.5ct six prong solitaire engagement ring ada diamonds design ad 067 on model
    Shown with 3.5ct in Platinum
  • Platinum & 18k Yellow Gold Round Classic Six Prong Solitaire featuring High Quality 3.75 ct Diamonds (Main View)
    Shown with 3.75ct in Platinum & 18k Yellow Gold
  • plaitnum four carat round six prong solitaire with lab grown diamond ada diamonds design ad067
    Shown with 4ct in Platinum
  • 5.5 ct Lab Created Diamonds set in Platinum Round Classic Six Prong Solitaire Diamond Engagement Ring (Main View)
    Shown with 5.5ct in Platinum
  • two-tone white and yellow gold 4 carat round six prong lab created diamond solitaire engagement ring ada diamonds design ad 067 on model
    Shown with 4ct in Platinum & 18k Yellow Gold
  • Exceptional Quality 3.75 ctw Man Made Diamonds set in Platinum Round Classic Six Prong Solitaire (Main View)
    Shown with 3.75ct in Platinum
  • Platinum & Yellow Gold Round Classic Six Prong Solitaire featuring 4.0 Carat Diamonds (Main View)
    Shown with 4ct in Platinum & 18k Yellow Gold
  • Round Classic Six Prong Solitaire Diamond Engagement Ring featuring 2.75 ct Diamonds (Main View)
    Shown with 2.75ct in Platinum
  • 18k yellow gold lab diamond wedding set with 1.5ct round six prong solitaire spacer band and shared prong wedding band ada diamonds design 067 ad295 ad109
    Shown with 1.25ct in Platinum & 18k Yellow Gold
  • Shown with 3ct in Platinum
  • Shown with 3ct in Platinum
  • Shown with 2ct in 14k Yellow Gold
  • Shown with 3ct in 18k Rose Gold
    Setting From $1,450 $1,160
    Ships in 3-4 Weeks

    Our friendly Diamond Concierge Team is available to answer any questions you may have, help you choose a spectacular lab diamond, and customize this engagement ring to your exact specifications.

    Lab Created Diamonds Round Classic Six Prong Solitaire Diamond Engagement Ring in Platinum

    Holiday Sale 2024

    Terms & Conditions:

    • Discount applies to select styles only.
    • This offer does not apply to custom-designed jewelry or settings.
    • A full diamond purchase is required to qualify for the discount; deposits (20%) are excluded.
    • Settings are eligible for a discount only with the purchase of a diamond.
    • Offer is valid for new purchases only and does not apply to previous transactions.
    • This promotion is available for a limited time and may be withdrawn at any time without notice.
    • This offer cannot be combined with any other promotions, discounts, or special offers.
    An absolute classic, this setting can be customized with or without a knife edge. Customize your lab diamond solitaire engagement ring with band widths of 1.8-2.5mm. 

    Ready to Begin Your Concierge Experience?

    © 2024 Ada Diamonds, Inc. All diamonds offered by Ada Diamonds™ are proudly laboratory-grown and can be referred to as lab created diamonds, grown diamonds, synthetic diamonds, man-made diamonds, cultivated diamonds, or cultured diamonds.