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.

Diamond Exchange

174 N State Rt 17, Paramus, NJ 07652

(201) 261-1303

Jet Diamonds

289 W State Rt 4, Paramus, NJ 07652

(201) 488-7700

Diamond Gem Gallery

231 Garden State Plz, Paramus, NJ 07652

(201) 226-1900

Fashion Corner

321 E State Rt 4, Paramus, NJ 07652

(201) 487-7487

Ultra Diamonds

2701 Bergen Town Ctr, Paramus, NJ 07652

(201) 845-4108

Ultra Diamonds

1 Garden State Plz, Paramus, NJ 07652

(201) 845-4608

Diamond Amh Jewelers

200 Winston Dr # 1103, Cliffside Park, NJ 07010

(201) 886-1807

G R M Ltd

2400 Merrick Rd, Bellmore, NY 11710

(516) 781-3155

Jewelry Factory

171 Main St, Hackensack, NJ 07601

(201) 525-1300

New York Gold Buyer

11202 Queens Blvd, Forest Hills, NY 11375

(718) 261-3411

I Recover Precious Metals

10240 67th Rd, Forest Hills, NY 11375

(917) 652-7386

Rosanne's Jewelry

1040 Park Blvd, Massapequa Park, NY 11762

(516) 799-7722

Cash for Gold Centers

5596 Merrick Rd, Massapequa, NY 11758

(516) 809-6004

Gorgeous Diamond

4177 Merrick Rd Unit 1, Massapequa, NY 11758

(516) 541-2255

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.