Diamond Authority

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Diamond Authority No salespeople, no pressure, just decades of expertise working directly for you. We look forward to seeing you soon! -Jeremy and Dave

We are by appointment only – book at TheDiamondAuthority.com, or call or text us at 971-458-4001.

Interesting design showcasing a marquise cut diamond. We just added 300 rings to our collection. Come see us. We have no...
10/09/2026

Interesting design showcasing a marquise cut diamond. We just added 300 rings to our collection. Come see us. We have no employees…. No A-I robots!!!! Just two diamond guys Jeremy & Dave • owners.

3 oval cut diamonds … 3 full carats … just finished in our shop! Dazzle time
09/30/2026

3 oval cut diamonds … 3 full carats … just finished in our shop! Dazzle time

Custom design is our specialty
09/27/2026

Custom design is our specialty

Love your jewelry …. Love our services!Restoration experts, repairs from a simple chain repair to setting & refurbishing...
09/15/2026

Love your jewelry …. Love our services!
Restoration experts, repairs from a simple chain repair to setting & refurbishing… custom experts with over 100 years of experience. No employees, you only deal with Jeremy or David the owners

Need to plan a great wedding? Engagement event? Or just because? We recommend Jachter Family Winery in Newberg. Call Ka...
09/15/2026

Need to plan a great wedding? Engagement event? Or just because? We recommend Jachter Family Winery in Newberg. Call Kayce to discuss making a lifetime memory 971-205-8301

Hey Guys … get her a ring! We make rings exclusively yours!
09/04/2026

Hey Guys … get her a ring! We make rings exclusively yours!

Integrity- Trust- History of experience. Dave’s great grandfather downtown in 1886. We know the jewelry business! https:...
09/02/2026

Integrity- Trust- History of experience.
Dave’s great grandfather downtown in 1886. We know the jewelry business!

https://thediamondauthority.com

We love diamonds!
08/31/2026

We love diamonds!

No employees! WHAT ???? You only meet with the owners, Jeremy or Dave. Call to make your appointment for repair services...
08/25/2026

No employees! WHAT ???? You only meet with the owners, Jeremy or Dave. Call to make your appointment for repair services, custom design and more. 971-458-4001
No pressure… no hassles .. just service in The Lincoln Tower across from Washington Square Mall

Address

10260 SW Greenburg Road, Suite 400
Portland, OR
97223

Telephone

+19714584001

Website

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