Diamond Spa

Diamond Spa is a medical spa located in Lake Oswego, OR at 18855 SW Martinazzi Ave. It holds a 4.8/5 rating across 70 patient reviews, placing it among the highest-rated medical spas in Lake Oswego. Services include massage spa.

About Diamond Spa

Serving clients around Lake Oswego, OR, Diamond Spa is a medical spa offering wellness and IV therapies. You'll find the clinic at 18855 SW Martinazzi Ave. The focus on wellness services is paired with the medical oversight expected of a med spa. Clients rate it 4.8 stars over 70 reviews, a consistently glowing track record. It's positioned as a mid-range option. As always, a one-on-one consult is the surest way to map out treatments and costs.

Contact & Location

Ratings & Reviews

Diamond Spa ranks via our priority score (rating × log of review count), which favors providers with both high satisfaction and substantial review volume. See how we rank.

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  Verified address

  18855 SW Martinazzi Ave
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  Real website (not directory URL)

  diamondspaor.wixsite.com/diamondspa
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  Aggregate rating

  4.8/5
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  Patient review volume

  70 reviews
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  Service inventory

  1 services documented
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  MSD Editorial Score

  3/5

We evaluated Diamond Spa across 6 verified data points before listing. Read our research methodology →

Citations

Sources we analyzed for this listing

• 70 Google reviews

Last updated Jun 22, 2026 · How we source data →

What clients love about Diamond Spa

• Consistently high marks for Massage spa results
• Convenient Lake Oswego location
• Verified by No BS Med Spa Reviews

Services & Specialties

What to Expect at Diamond Spa

Expect to begin with a one-on-one consultation to discuss your wellness goals. A licensed provider explains the options — from IV drips to other supportive therapies — along with timing and what to expect during and after each session. It's always smart to confirm your provider's license and credentials, ask about pricing up front, and bring a list of any medications or allergies.

Financing Available for Massage spa in Lake Oswego

Many med spas in Lake Oswego offer financing through Cherry, Affirm, or CareCredit, which let you spread treatment costs over fixed monthly payments. Ask Diamond Spa during your consultation which plans they accept and whether interest-free terms are available.

Financing terms vary by provider and approved credit. Bring your questions about deposits, APR, and prepayment options to your initial consultation so you can compare totals across massage spa packages in Lake Oswego, OR.

Location

18855 SW Martinazzi Ave, Lake Oswego, OR

About Diamond Spa

Based in Lake Oswego, OR, Diamond Spa is a medical spa specializing in massage spa. Across 70 reviews, it maintains a 4.8-star rating, and fees land in the moderate range. Verify offerings and availability with the spa before your visit.

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