When you are in the market for diamonds in Middle Island, 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.

All Good Gold Exchange

343 Hawkins Ave, Ronkonkoma, NY 11779

(631) 648-8625

Ny Gold Center

600 Portion Rd Unit 22, Ronkonkoma, NY 11779

(631) 648-7329

Sayville Antiques

76 Railroad Ave, Sayville, NY 11782

(631) 317-1552

Imperial Diamonds of Li

5750 Sunrise Hwy, Sayville, NY 11782

(631) 319-6787

V S Diamonds

5750 Sunrise Hwy, Sayville, NY 11782

(631) 567-4340

Kay Cameron Jewelers

48 Main St, Sayville, NY 11782

(631) 567-1698

Jennifer Diamonds

5750 Sunrise Hwy, Sayville, NY 11782

(631) 567-4948

Jared Vault

1307 Tanger Mall Dr, Riverhead, NY 11901

(631) 369-7143

Zales

1770 W Main St # 209, Riverhead, NY 11901

(631) 208-3561

East Islip Jewelers

20 E Main St, East Islip, NY 11730

(631) 676-2932

Alloys International Inc

85 Hoffman Ln Ste J, Islandia, NY 11749

(631) 342-0043

Sterling Aircraft Materials LTD

3180 Unit I Express Dr S, Islandia, NY 11749

(631) 234-3636

Zales

1701 Sunrise Hwy, Bay Shore, NY 11706

(631) 969-0433

Suffolk Goldbuyers

837 Fort Salonga Rd, Northport, NY 11768

(631) 651-5100

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.