When you are in the market for diamonds in Locust Valley, 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.

Twin Jewelers Inc

637A McLean Ave, Yonkers, NY 10705

(914) 375-4653

Mercury Building Concepts

157 Walsh Rd, Yonkers, NY 10701

(914) 207-1940

Rosanne's Jewelry

1040 Park Blvd, Massapequa Park, NY 11762

(516) 799-7722

Mosiello & Son's Jewelry

545 Saw Mill River Rd, Ardsley, NY 10502

(914) 693-5672

Vincente Jewelers

25 Atlantic Ave, Freeport, NY 11520

(516) 868-7818

A A Gold Buyers

2382 Grand Ave, Baldwin, NY 11510

(516) 442-7171

Collectors Coins & Jewelry - Est 1946 - Gold, Diamonds & Estates

1846 Grand Ave, North Baldwin, NY 11510

(516) 223-1212

Cash For Gold Centers

1741 Deer Park Ave, Deer Park, NY 11729

(631) 392-1170

Zales

412 The Arches Cir, Deer Park, NY 11729

(631) 242-3895

Zales

455 Commack Rd, Deer Park, NY 11729

(631) 242-3895

Zales

412 The Arches Cir, Deer Park, NY 11729

(631) 274-0822

Liberty Jewelry & Coin Gallery

1864 Deer Park Ave Ste 2, Deer Park, NY 11729

(631) 242-7979

Aero-Specialties Corp

20 Burt Dr, Deer Park, NY 11729

(631) 242-7200

Jenna's Jewelers

2116 Deer Park Ave, Deer Park, NY 11729

(631) 254-6033

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.