Diamond SPEARFISHING WORLD FLOATLINES Braided Line Review
Our verdict
The Diamond Spearfishing Floatline is a 60 foot polypropylene float line for $28.85, built to float rather than sink, the opposite of what you want in a rod and reel braided line. At 4.6 stars across 126 reviews, buyers seem satisfied with its core job: connecting a speargun to a surface float.
Check price on AmazonBest for
Spearfishermen who need a dedicated float line to connect a speargun or pole spear to a surface buoy. The 60 foot polypropylene line floats by design, keeping slack visible and out of the way during a dive.
Skip if
Skip it if you're rigging a spinning reel or casting outfit. This is a floating polypropylene line, not a sinking braided mainline, and it won't spool onto a reel or behave like the 8 to 20 pound test lines nearby.
- Material Polypropylene (PP)
- Weight 0.64 Pounds
- Length 720 Inches
- Size 60ft
- Color Yellow
- Pieces 1.0 Count
- Priced 15% above the category median ($24.98 across 57 tracked models)
Our scorecard
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Owner rating4.6/5
4.6 average across 126 owner ratings
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Popularity0.3/5
126 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other fishing gear and tackle we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Anyone who spearfishes off a boat or from shore knows the float line is the piece of gear that keeps the diver connected to a surface buoy without dragging heavy line through the water. The Diamond Spearfishing Floatline is built for that single job: 60 feet of yellow polypropylene line that costs $28.85 and floats on the surface instead of sinking.
The spec sheet is short but specific. It ships as one 720 inch, or 60 foot, length, weighs 0.64 pounds, and is made from polypropylene, a material chosen because it floats rather than absorbs water. The bright yellow color is a visibility choice, not a decoration, since a float line needs to be seen from a boat or by a dive buddy.
That single purpose also explains why it doesn't belong next to a spinning reel line like the Power 21100200500E at $44.99 or the PowerPro 21100080150Y at $17.94. Those are sinking braided lines meant to spool onto a reel in 8 to 20 pound test weights. The Diamond line is a floating tether, not a casting line, and the 126 reviews averaging 4.6 stars reflect buyers who bought it for exactly that spearfishing use case.
Pros
- Floats on the surface thanks to its polypropylene construction, keeping slack away from the diver
- 60 foot, or 720 inch, length is a practical size for a speargun float tether
- Bright yellow color makes the line easy to spot from a boat or by a dive partner
- 4.6 star average across 126 reviews suggests consistent satisfaction for its intended use
- Lightweight at 0.64 pounds for the full 60 foot spool
- $28.85 price sits in the middle of the braided-line price range shown alongside it, from $17.94 to $44.99
Cons
- Not a substitute for a sinking braided mainline, it won't perform like the 8 to 20 pound test lines built for reels
- No listed line weight or breaking strength rating, unlike the other lines here
- Bought last month shows 0+, so recent purchase volume isn't indicated
- Ships in a single fixed 60 foot length with no size options mentioned
Specifications
| Material | Polypropylene (PP) |
|---|---|
| Weight | 0.64 Pounds |
| Length | 720 Inches |
| Size | 60ft |
| Color | Yellow |
| Pieces | 1.0 Count |
Performance notes
Polypropylene is the material to focus on here, because it is one of the few common line materials that floats instead of sinking. That property is the entire point of a spearfishing float line: it keeps the connection between speargun and surface buoy visible and untangled instead of drooping toward the bottom. At 0.64 pounds for 720 inches, or 60 feet, the line is light enough to trail behind a diver without adding meaningful drag. The yellow color is a practical safety choice, since a float line has to be spotted quickly from the surface. There's no listed pound test or breaking strength, which is normal for a float line since its job is buoyancy and connection rather than resisting a fighting fish, unlike the braided lines it's grouped with here.
What buyers say
A 4.6 star average across 126 reviews is a solid rating, close to the 4.7 stars posted by the Power 21100200500E across 5,800 reviews and the Power 21100080300E across 983 reviews, though on a much smaller review base. Bought last month is listed at 0+, so there's no signal of a recent purchase spike. A smaller, steady review count paired with a high average often points to a niche product bought by people who already know they need it, in this case spearfishermen looking for a float line rather than casual anglers browsing a general fishing line category. The rating pattern suggests the line reliably does its narrow job.
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Frequently asked questions
Is this line meant for a spinning reel?
No. The Diamond Spearfishing Floatline is a floating polypropylene line built to connect a speargun or pole spear to a surface buoy, not to spool onto a rod and reel. If you need line for casting, look at a sinking braided option like the ones listed alongside it.
How long is the line?
It ships in a single 720 inch, or 60 foot, length, weighing 0.64 pounds total. That's a standard length for a spearfishing float line running from a diver to a surface buoy, and the product listing doesn't mention any alternate length or size options beyond this one 60 foot spool.
Why is the color yellow?
Yellow is a high visibility color choice so the float line can be spotted easily on or near the surface by the diver, a boat crew, or a dive buddy. It's a safety feature tied to the polypropylene material rather than a cosmetic option.