Is Diamond Brite better than regular plaster?

It is priced and rated as a step up. HomeGuide puts quartz plaster at $7 to $10 per square foot against $6 to $8 for standard plaster, and SGM publishes a 10-to-15-year life against HomeGuide's 7 to 12 for plain plaster. SGM also describes the quartz aggregate as ceramic-coated and etch-and-stain resistant — claims a reader should weigh as the manufacturer's.

Is Diamond Brite the same as Pebble Tec?

No. Diamond Brite is a quartz aggregate finish made by SGM; Pebble Tec is a pebble finish from a different company. HomeGuide prices the pebble category at $7 to $15 per square foot and publishes a 15-to-20-plus-year life for it, which is the longer-lasting and usually costlier of the two.

How thick is Diamond Brite applied?

SGM specifies a minimum of 3/8 to 1/2 inch, and its coverage figure of 22 to 25 square feet per 80-pound bag assumes that thickness. A quote whose bag count implies a thinner coat is a quote to question.

Can Diamond Brite be applied over old plaster?

HomeGuide describes every resurfacing job as starting with the old finish chipped, sandblasted, hydro-blasted or chemically stripped to prepare the shell. SGM's coverage note that surface roughness affects coverage points the same way — the prep decides how the finish bonds, so ask what prep is in the quote.

How much does Diamond Brite pool resurfacing cost?

Published August 21, 2026

Diamond Brite is a quartz aggregate pool finish; HomeGuide prices quartz plaster resurfacing at $7 to $10 per square foot installed.

For a 1,000-square-foot interior that is $7,000 to $10,000 on HomeGuide's table, against $6,000 to $8,000 for standard white plaster. SGM, the company that makes Diamond Brite, describes the product as a blend of quartz aggregate and white Portland cement, which is exactly the quartz-plaster category HomeGuide prices. No cost guide publishes a brand-specific Diamond Brite rate, so the honest number is the category rate plus whatever your contractor's quote says about the brand.

Sources: HomeGuide, SGM (Diamond Brite manufacturer)

This page is general information, not professional advice. Prices move with your pool's size, shape, condition and region, and the only number that counts is a written quote from a pool contractor who has drained and inspected yours.

Diamond Brite cost per bag and how many bags a pool takes

SGM publishes the coverage figure the price depends on: each 80-pound bag covers approximately 22 to 25 square feet at a thickness of 3/8 to 1/2 inch, with rougher surfaces reducing coverage. So a 1,000-square-foot interior takes roughly 40 to 45 bags, and a quote that lists the bag count can be checked against the surface area in a minute. SGM does not publish a per-bag retail price; that comes from the supply house on your contractor's invoice.

Source: SGM (Diamond Brite manufacturer)

Finish	Per square foot (HomeGuide)	Published lifespan
Standard plaster	$6 – $8	7 – 12 years (HomeGuide)
Quartz plaster — Diamond Brite's category	$7 – $10	10 – 15 years (SGM)
Pebble	$7 – $15	15 – 20+ years (HomeGuide)

Where Diamond Brite sits in HomeGuide's published finish table, with the manufacturer's published lifespan alongside.

Sources: HomeGuide, SGM (Diamond Brite manufacturer)

How long does Diamond Brite last?

SGM's own answer is 10 to 15 years with proper water chemistry and maintenance. It publishes a standard one-year manufacturer warranty, with extended warranties available up to 10 years on residential pools. That is the number to ask a bidder about: which warranty tier is in the quote, and who registers it.

Source: SGM (Diamond Brite manufacturer)

The finish has a warranty and the workmanship has a separate one. Get both in writing, and get the bag count on the same page.

Diamond Brite colors and what they change

The color choice is cosmetic and the price is not usually where it shows — the aggregate blend and the installer's prep are what move the quote. Lighter blends read as a lighter water color and darker blends as deeper water; the sample board at the supply house is the only honest preview. Ask for a finished pool address in your area with the blend you are considering.

For the plaster-versus-quartz-versus-pebble decision with all three published lifespans: the best pool resurfacing material.

These are the pool resurfacing companies AI assistants actually name when homeowners ask. Nobody can pay to be on these lists.

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Questions people ask next

Is Diamond Brite better than regular plaster?: It is priced and rated as a step up. HomeGuide puts quartz plaster at $7 to $10 per square foot against $6 to $8 for standard plaster, and SGM publishes a 10-to-15-year life against HomeGuide's 7 to 12 for plain plaster. SGM also describes the quartz aggregate as ceramic-coated and etch-and-stain resistant — claims a reader should weigh as the manufacturer's.
Is Diamond Brite the same as Pebble Tec?: No. Diamond Brite is a quartz aggregate finish made by SGM; Pebble Tec is a pebble finish from a different company. HomeGuide prices the pebble category at $7 to $15 per square foot and publishes a 15-to-20-plus-year life for it, which is the longer-lasting and usually costlier of the two.
How thick is Diamond Brite applied?: SGM specifies a minimum of 3/8 to 1/2 inch, and its coverage figure of 22 to 25 square feet per 80-pound bag assumes that thickness. A quote whose bag count implies a thinner coat is a quote to question.
Can Diamond Brite be applied over old plaster?: HomeGuide describes every resurfacing job as starting with the old finish chipped, sandblasted, hydro-blasted or chemically stripped to prepare the shell. SGM's coverage note that surface roughness affects coverage points the same way — the prep decides how the finish bonds, so ask what prep is in the quote.

Written for homeowners by Most Recommended Pool Resurfacing, which measures which pool resurfacing companies AI assistants actually recommend in 12 U.S. metros. Nobody can pay to be on those lists. How we measure.