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Deal.ai › Rings
Rocksbox
Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw

Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw

Best price now

$89.60at Kay JewelersChecked 13 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $89.60 at Kay Jewelers (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw

The Mariel is an open-front ring in silver set with one small lab-grown diamond, about 1/20 carat. The gap design lets it sit on different fingers and stack with other bands. It suits shoppers who want a light, modern diamond piece without a full band of stones. Against typical diamond rings it is minimal: one stone, silver rather than gold, and a lab-grown diamond that matches mined stones in hardness and sparkle.

Best forEveryday stacking and layeringA first lab-grown diamond pieceGift for a minimalist jewelry wearerAdjustable-feel fit across fingers
Pros
  • Open front flexes to fit several fingers
  • Lab-grown diamond has the same hardness as mined
  • Single stone keeps the look clean and modern
  • Silver tone suits casual and office wear
  • Stacks easily with plain bands
Cons
  • One small stone gives modest sparkle
  • Silver can tarnish and needs polishing
  • Open design can catch on knits and hair
  • No gold option for metal-sensitive wearers

Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw prices at every store

  • Kay JewelersNew

    In stock

    $89.60Free shippingChecked 13 h ago
    Visit Kay Jewelers
  • Kay JewelersNew

    In stock

    $103.60Checked 13 h ago
    Visit Kay Jewelers

Store links may earn us a commission. Some prices via Klarna.

Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw price history

Lowest price we've seen: $89.60 on Nov 10 at Kay Jewelers. Tracked across 2 stores since Nov 10.

Specifications

Color
SilverSource
Material
SilverSource
No. of Stones (pcs)
1Source
Stone
DiamondSource

Questions and answers

Is a lab-grown diamond a real diamond?
Yes. It is chemically and physically the same as a mined diamond, just grown in a lab. It has the same hardness and sparkle.
Will the open design fit my finger?
The gap lets the band flex, so it fits a range of sizes and can move between fingers. It is not a fully adjustable band, so very large or very small sizes may not sit well.
Can I wear it every day?
Yes, but silver scratches and tarnishes with daily wear. Store it dry and polish it to keep the shine.
How does it compare with a full diamond band?
It has one small stone instead of a row, so it is quieter and easier to stack. Expect less sparkle than a pavé or eternity band.
What is in the box?
The ring comes as a single piece. Check the listing for any pouch or packaging included.
Where is the Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw cheapest?
At Kay Jewelers, for $89.60, as of our latest check.

Stores we've priced the Rocksbox The Mariel Lab-Grown Diamond Open Ring 1/20 ct tw at

  • Kay Jewelers deals and prices