Castro Valley, CA Local Market Overview (Oct 2026)
Whether you need a scheduled rider policy for homeowners insurance (Jewelers Mutual, Chubb, Vault), an equitable estate division report, or independent pre-purchase verification of a loose diamond in Castro Valley, California, working with a credentialed gemologist (GIA GG, NAJA, or ASA) ensures your documentation is accepted by all major underwriters.
Across Castro Valley, 9 verified showrooms along 2861 Castro Valley Blvd, 21754 Baywood Ave, 19651 Center St, E Castro Valley Blvd provide written gemological appraisals, led by Vortman's Fine Jewelry, R&J Jewelry Exchange, Yarnal Jewelers.
Verified Showrooms in Castro Valley, CA
#1 Verified Castro Valley Specialist
⭐ 4.8 (25 reviews)
VO
📍 19651 Center St, Castro Valley, CA 94546, USA
Vortman's Fine Jewelry is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#2 Verified Castro Valley Specialist
⭐ 4.7 (30 reviews)
R&
📍 2861 Castro Valley Blvd, Castro Valley, CA 94546, USA
R&J Jewelry Exchange is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#3 Verified Castro Valley Specialist
⭐ 4.6 (30 reviews)
YA
📍 4029 E Castro Valley Blvd, Castro Valley, CA 94552, USA
Yarnal Jewelers is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#4 Verified Castro Valley Specialist
⭐ 4.4 (52 reviews)
R&
📍 2861 Castro Valley Blvd, Castro Valley, CA 94546, USA
R&J Jewelry And Exchange is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#5 Verified Castro Valley Specialist
⭐ 4.5 (40 reviews)
GL
📍 2560 Castro Valley Blvd, Castro Valley, CA 94546, USA
Glorious Beads is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#6 Verified Castro Valley Specialist
⭐ 4.5 (32 reviews)
DR
📍 21754 Baywood Ave, Castro Valley, CA 94546, USA
Dr Hustin Whitman Gold and Jewelry is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#7 Verified Castro Valley Specialist
⭐ 4.5 (20 reviews)
GE
📍 20211 Patio Dr STE 205, Castro Valley, CA 94546, USA
Gent Jay Jewelry is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#8 Verified Castro Valley Specialist
⭐ 4.4 (9 reviews)
IT
📍 21754 Baywood Ave, Castro Valley, CA 94546, USA
iTekken Store California is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#9 Verified Castro Valley Specialist
⭐ 3.9 (20 reviews)
GO
📍 20865 Redwood Rd, Castro Valley, CA 94546, USA
Golden Jewelry is an esteemed jewelry showroom and custom design studio in Castro Valley. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation