AGT™ Sky Blue ULTRA Grade Glow Stones 1/2". Side by side glow in the dark comparison.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/2". Glow in the dark view.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/2". Day time view.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/4". Side by side glow in the dark comparison.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/4". Glow in the dark view.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/4". Day time view.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/8". Side by side glow in the dark comparison.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/8". Glow in the dark view.
AGT™ Sky Blue ULTRA Grade Glow Stones 1/8". Day time view.

Ultra Grade Glow Stones - Sky Blue - 1lb.

Regular price$45.00
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  • Hyper-Luminosity
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AGT™ Sky Blue ULTRA Grade Glow Stones feature a DIN67510 Part 1 Super-Luminosity compliance rating and exhibit a +30% higher luminosity and glow duration than our AGT™ Commercial Grade Glow Stones. These glow stones are also 40-60% brighter than the average glow stones found online.

Favored by architects and artists alike for their sensual blue aesthetic, these glow in the dark stones are perfect for outdoor trails, bike paths and entertainment areas.

When applied in a 4:1 ratio with our ULTRA Grade Aqua Blue Glow Stones, the glow surface takes on a magical 3D depth effect.

8 minutes of sunlight = 15+ hours of eco-friendly glow!

Designed to outperform ALL lower quality glow marble, mini pebbles, glow rocks and glow stones available online.

Order Weight: 1 lb.
Initial Brilliance: EXTREME - 1215 mcd/m2 @ 1min.
Charging Time: 8 minutes of UV light
Glow Duration: 15+ hours
Daytime Color: Off-White
Texture: Lightly Tumbled
Bulk Pricing: Available on orders over 10 lbs.
Alternate Terms: Mini Pebbles, Glow Aggregate, Glow Stones, Glow Rocks, Glow Quartz, Glow Marble, Quantum Glow Stones, Glow Glass, Glow Chips.
1/2" (10-15mm): Approx. 16sf/lb. (1.49m2) - A stone every 3-4 inches (9cm)
1/4" (4-8mm): Approx. 28sf/lb. (2.5m2) - A stone every 3-4 inches (9cm)
1/8" (2-4mm): Approx. 36sf/lb. (13.35m2) - A stone every 3-4 inches (9cm)
Polished & exposed concrete, new asphalt & cement. Pool decks, pool interiors, trails, pathways, walkways, driveways, entertainment areas, patios, etc.

Ambient Glow Technology - Limited Warranty

Subject to the terms and conditions herein, Ambient Glow Technology (“AGT™”) warrants its glow stone products to be free from manufacturing defects and to glow under normal usage for a period of 20 years from the date of purchase and will perform as outlined in AGT™ Tech Data Documents #003 and #004. The warranty coverage is limited to the original purchaser and is not transferable. The terms of this limited warranty are subject to the exclusions, limitations and restrictions as set forth as follows:

Exclusions from Warranty Coverage

AGT™ will have no liability under this warranty for, and no implied warranty shall be deemed to cover, any damages or failures related to or caused by: damages caused by natural causes including but not limited to hurricane, flooding earthquake, high winds, lightening or other types of natural disaster, environmental conditions, damages caused by any act of human including applying blunt force, bomb or other force, or as a result of unforeseen circumstances , acts of negligence or product misuse or abuse, structure or structural failure, inadequate substrate or substrate related failures including cracking or excessive deflection, normal wear and tear, improper coatings, any chemical interactions, coverage or coatings which block or impede light transmission and reception, failure to comply with our technical data sheets and other written instructions, applicable building codes and regulations and standard industry practice.

Special Guarantee – AGT™ Ultra Grade Glow Stone

AGT™ guarantees that Ultra Glow Stone is the brightest photoluminescent stone available. Further that AGT™ ULTRA Glow Stone will continue to glow for over 15 hours after being fully charged for a minimum of 8 minutes in sunlight. Refer to the exclusions and limitations in this warranty as well as the Warranty Claims Procedure.

Warranty Claims Procedure

Refer to our warranty Claims Procedure instructions on our website or email us at


Except for the express written warranty contained herein, AGT™ makes no other warranties, guarantees or indemnities, whether express or implied, arising by law, course of dealing, usage of trade, customer or otherwise, including but not limited to the implied warranty of merchantability and implied warranty of fitness for a particular purpose and all such other warranties, guarantees and indemnities are hereby disclaimed, overridden and excluded. This limitation may not be applicable in certain jurisdictions which do not allow limitations on the length of an implied warranty.

The Liabilities of AGT™ are limited solely and exclusively to the obligations specifically undertaken herein, and under no circumstances will AGT™ be liable or obligated for any incidental, consequential, indirect or special, punitive or any other damages of any kind whatsoever, whether foreseeable or unforeseeable, arising out of breach or failure of express or implied warranty, breach of contract, fraud, misrepresentation, negligence, strict liability in tort or otherwise, or any other cause of action, except and only to the extent that this Limitation is specifically precluded by applicable law of mandatory application. The Liability of AGT™ with respect to this warranty shall in no event exceed the replacement of such product or refund of the original purchase price at our sole discretion.

Some states/jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights that vary from state to state or other jurisdictions.


This writing is understood and intended to be the final expression of the AGT™ Warranty and is a complete and exclusive statement of the terms and conditions with respect thereto, superseding all prior agreements or representations, oral or written, and all other communications relating to Product Warranty. This warranty may not be altered or amended except in a written instrument executed by AGT™. No agent, employee or any other party is authorized to make any warranty in addition to that made in this warranty and AGT ™ shall not be bound by any such statements other than those contained in this warranty.

The parties agree that any legal action arising from a dispute hereby irrevocably and unconditionally attorn to the exclusive jurisdiction of the courts of the Province of Ontario and all courts competent to hear appeals therefrom.

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  • Trade/Common Name:
    • AGT™ ULTRA Glow Stone: AGT-U-(AB/SB/EY/PP)
      • Sizing: ⅛" (4mm), ¼” (8mm), ½” (12mm)
    • CAS Number: N/A
    • Chemical Family: ALUMINATE
    • Formula: PROPRIETARY
    • Statement: AGT™ stone is made with proprietary photo-luminescent pigment and our proprietary polyester resin. This material data sheet (MSDS) has been prepared in compliance with the Federal OSHA Hazard Communication Standard 29 CFR 1910.1200. This product is considered to be a non-hazardous substance under that standard.


    Responsible Party: Universal One Corporation

    Emergency and Informational Telephone Number:

     905 250 9642

    Address: 12 – 1064  Salk Road, Pickering, ON, L1W 4B5

    Date Prepared: January 02, 2023


    • Density: 2.08g/cm3
    • BARCO Hardness: ≥55
    • Bend Strength: ≥100MPa
    • Impact Strength: ≥14.00 KJ/m2
    • Thermal Deformation Temperature: ≥185 degrees C
    • Elongation At Break: ≥4.2%


    • Stability: Stable
    • Hazardous Polymerization: Will not occur.
    • Conditions to Avoid: Contact with acids.
    • Incompatibility: Contact with acids.
    • Hazardous Decomposition Products: Will not occur.


    • Respiratory Equipment: Not Necessary.
    • Protective Gloves: Not Necessary.
    • Eye Protection: Not Necessary.
    • Ventilation: None.
    • Other Protective Equipment: None.
    • Primary Routes of Exposure: Skin.
    • Effects of Overexposure: None.
    • Listed Carcinogen: None.


    • Skin: Wash off with soap and water.
    • Eyes: Flush with water for 5 minutes.
    • Inhalation: Move to fresh air.
    • Ingestion: N/A


    • Inhalation: N/A
    • Skin Contact: N/A
    • Skin Absorption: N/A
    • Eye Contact: May cause minor eye irritation (mechanical)
    • Ingestion: N/A


    • Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage.
    • Other Precautions: maintain a schedule of regular housekeeping to insure cleanliness.


    • NFPA Ratings: Health: 0 Flammability: 0 Reactivity: 0
    • Label Precautions:
      • Washing thoroughly after handling.
      • Use with adequate ventilation.


    Universal One Corporation provides the information contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving this information must exercise their independent judgment in determining its appropriateness for a particular purpose. UNIVERSAL ONE CORPORATION MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, UNIVERSAL ONE CORPORATION WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.

    Have a Question for Our Glow Experts?

    Before & After

    AGT™ Sky Blue Mini Pebbles day time view.
    Glow in the dark AGT™ Sky Blue Mini Pebbles

    Why Ambient Glow Technology

    We are the market leader in high performance glow stones for concrete and asphalt. Since developing the current industry-standard - AGT™ Commercial Grade glow stones in 2008, Ambient Glow Technology has remained on the cutting edge of glow in the dark stone manufacturing technology.

    Best Practices for Glow Aggregate Application

    To ensure that the end result is what you envisioned, our dedicated AGT™ Applications Team stands ready to share over 10 years of real, hands-on glow stone application experience with you.

    AGT™ Glowing Reviews


    We have tried some other glow stone products on the market and they all pale in comparison to AGT. Your glow stones produce a 50%-75% greater glow intensity & duration than ANY other other glow marble and glow glass chips we have ever tested.

    Dr. Eugene Tssui
    Architect, Author, CA., USA

    I have tried other glow stones on the market such as glass glow stones and THEY JUST DON'T GLOW! AGT Glow Stones have the brightest and longest lasting glow on the planet! Don't waste your money or time on anything else!

    Shane M.
    Illinois, USA

    AGT's stones glowed the brightest and had the shortest decay rate. Hence, they serve as the best company to go ahead with for concrete or asphalt projects.

    Dept. of Mechanical & Aerospace Engineering
    University of Florida

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