When you are in the market for diamonds in Sunol, you want to have access to the very best dealers. This means you want to have a good range of choices to find a dealer that fits your needs as well.

Thankfully, we have you covered for all of your diamond related needs and more. Here we have a list of the best local diamond dealers and rare gemstone dealers as well. Each and every business on this list is ready to help you buy, sell, or trade the gems that you want on your terms, in your time.

Cosmopolitan Diamonds & Gems

139 N Santa Cruz Ave, Los Gatos, CA 95030

(408) 482-6715

Clayton Jewelry & Loan

4787B Clayton Rd, Concord, CA 94521

(925) 825-6523

Helzberg

244 Sun Valley Mall, Concord, CA 94520

(925) 671-2571

Helzberg

244 Willow Pass Rd, Concord, CA 94520

(925) 671-2571

Zales

116 Sun Valley Mall, Concord, CA 94520

(925) 687-2550

Zales

680 Willow Pass Rd, Concord, CA 94520

(925) 687-2550

Pleasant Hill Coin & Jewelry

3264 Buskirk Ave, Pleasant Hill, CA 94523

(925) 937-7877

JewelSmiths

1600 Contra Costa Blvd, Pleasant Hill, CA 94523

(925) 685-2943

Mallett & Sons Jewelry

4490 Lone Tree Way, Antioch, CA 94531

(925) 234-4581

Antioch Coin & Jewelry Pawn

1900 A St, Antioch, CA 94509

(925) 392-0993

Washington Diamonds

1000 Claudia Ct, Antioch, CA 94509

(925) 238-0949

Elvn Precious Metals

7520 La Honda Rd, La Honda, CA 94020

(650) 747-0007

Jewelry Exchange The

1286 Oddstad Dr, Redwood City, CA 94063

(714) 494-1454

14 Karats

2910 College Ave, Berkeley, CA 94705

(510) 646-1371

Working With Diamond Dealers

Buying diamonds can be an intimidating process if you are not quite sure how it all works. Even though there is a lot of information available today about different diamond dealers and how to get the best deal, you still want to make sure that you are picking out the best possible vendor to give you the quality and value that you deserve. Not only will you want to educate yourself on the 4 C's of diamond buying, but you also need to learn all that you can about how the industry works. This will help you find a reputable, honest and ethical dealer.

The best diamond dealer will always be able to offer you a certificate or the grading report for any diamond that they offer. You need to make sure that this is a certificate that comes from an independent, recognized laboratory such as HRD, DCLA, GIA or AGS. These diamond grading specialists use only the best and most advanced equipment and the strictest procedures to inspect their diamonds. Therefor, you know that you are getting nothing but the utmost quality for the money that you are investing.

When working with diamond dealers, you always want to pay attention to what they offer for certified diamonds and never go with one that tells you that there will be an additional charge for a certificate by an independent laboratory. Only reputable dealers will already offer this included in your diamond buying experience. If you ever, at any time, feel as though you are unsure of whether or not you can trust a dealer, you are best off shopping for your diamonds elsewhere.

All in all, you will find that taking your time to choose the right dealer to get your diamond(s) from will be the best way to ensure total quality for the money.