When you are in the market for diamonds in Cos Cob, 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.

Grunberger Diamonds Inc

98 Cuttermill Rd Ste 301N, Great Neck, NY 11021

(516) 482-6212

Nabavian Gem Co

98 Cuttermill Rd Ste 430N, Great Neck, NY 11021

(212) 921-1678

Eyal Rd Corp

135 Cuttermill Rd, Great Neck, NY 11021

(516) 466-0035

Maddy Fine Jewelery & Diamonds

113 Jackson Ave, Syosset, NY 11791

(516) 921-5660

Peter Jewelry

80 Main St, Hempstead, NY 11550

(516) 505-2497

Father And Sons 110 Jewlers

829 Walt Whitman Rd, Melville, NY 11747

(631) 423-2966

M M Gold Buyers

25323 Northern Blvd, Little Neck, NY 11362

(718) 224-4666

DHARMa Jewelry

314 Covert Ave, New hyde park, NY 11040

(516) 513-4869

Specialty Metals Smelters & Refiners LLC

2490 Black Rock Turnpike, Fairfield, CT 06825

(800) 426-2344

Shaw Jewelers Inc

525 Tunxis Hill Rd Cut-Off, Fairfield, CT 06825

(203) 367-0777

Zales

5065 Main St, Bridgeport, CT 06606

(203) 365-0392

Little Diamonds

182 Alpine St, Bridgeport, CT 06610

(203) 345-1432

Madison Jewelers

2261 Black Rock Tpke, Fairfield, CT 06825

(203) 337-6106

MTM Precious Metals

20 S. Main St., New City, NY 10956

(845) 634-0170

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.