Guide for Selling Your Diamonds to our South Florida Diamond Buyers

Selling your diamonds can be lucrative move for a variety of reasons. For the last 30 years, Keno Brothers Jewelers has been helping our customers in South Florida to appraise, value and sell their precious diamonds for the highest prices page. To help assist you in understanding the process of how diamonds are bought and sold, we’ve put together this detailed guide for how to sell us your diamonds in South Florida.

To start with, our South Florida certified diamond buyers pay you the highest amount for your certified diamonds, GIA diamonds, large and small Diamonds in South Florida and Greater Fort Lauderdale. Come by our store or make an appointment by contacting us now.

We pride ourselves on being trustworthy, honest and fair with our prices and our evaluations. Don’t hesitate to give us a call or come visit our store for a personal consultation and review.

Sell Certified Diamonds, GIA Certified Diamonds
Sell Certified Diamonds, GIA Certified Diamonds

We buy GIA DiamondsCertified DiamondsEGL Diamonds and large Diamonds. We buy all shapes (rounds, hearts, marquise, ovals, princess cuts, emerald cuts, mine cuts, European cuts); we buy all sizes (large, small, melee); we buy all qualities (modern, chipped, broken, flawed and flawless); we buy all types (modern, antique, estate). We also buy loose diamonds and diamonds that are mounted (engagement rings, tennis bracelets, earrings, pendants).

We buy diamonds certified by any reputable laboratory.

GIA, AGS, EGL,  AGL, IGL, GCI, GLA, UGL, certified diamonds, estate diamonds, canary, Tiffany and many more. If you don’t have a laboratory certification, our gemologists can provide this service. We are experts at evaluating and appraising diamonds.

Sell Certified Diamonds
Sell Certified Diamonds

We are Graduate Gemologists, trained at the GIA (Gemological Institute of America) with many years of buying experience. We have a very large client base of collectors. Therefore, we can offer you more for your diamonds than the other “so-called buyers”.

Everybody claims to be the best, but we back it up. As members of the National Association of Jewelry Appraisers, our Gemologists are masters at appraising your diamonds for cut, color, clarity and carat. We know how to accurately identify and evaluate diamonds and separate them from look-alikes such as cubic zirconias and moissanites. We’ve been here a long time; we are a family-owned business, established in Fort Lauderdale in 1978.

The 4 C’s of Diamonds

On every diamond that we buy, our GIA Graduate Gemologists in Fort Lauderdale will examine them for the main factors that determine value:

Cut & Diamond Shape

The brilliance of a diamond is directly related to it’s proportions and finish. Nicely cut diamonds will have more brightness and sparkle.  Poorly cut diamonds may be darker in appearance and thus less valuable. Typically, round super-ideal cuts are the most valuable and exhibit the most brilliance. Remember that only round and princess cut diamonds are given a cut grade by the GIA, we’ll explain more about this process when you meet with our diamond buyers and appraisers in person.


Diamonds may appear colorless (white) or tinted (yellowish). Generally speaking, white diamonds are more valuable than tinted diamonds.  However, natural diamonds have been found in every color (red, blue, green, yellow, etc.). Diamonds may also be treated to artificially enhance their color.

According to Wikipedia:

A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality almost no gem-sized natural diamonds are absolutely perfect. The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice. Depending on the hue and intensity of a diamond’s coloration, a diamond’s color can either detract from or enhance its value.

For example, most white diamonds are discounted in price when more yellow hue is detectable, while intense pink diamonds or blue diamonds (such as the Hope Diamond) can be dramatically more valuable. Of all colored diamonds, red diamonds are the rarest. The Aurora Pyramid of Hope displays a spectacular array of naturally colored diamonds, including red diamonds.


Most diamonds contain certain identifying characteristic that are found in their interior. The GIA has its own Diamond Clarity guide that helps you understand how diamonds are valued and evaluated for clarity.

According to the GIA guide here:

The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.

  • Flawless (FL) No inclusions and no blemishes visible under 10x magnification
  • Internally Flawless (IF) No inclusions visible under 10x magnification
  • Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
  • Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification, but can be characterized as minor
  • Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification
  • Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brilliance


This refers to the size of the diamond. Learn more about this directly from the GIA with their article on Diamond Carat Weight. According to the GIA:

A metric “carat” is defined as 200 milligrams. Each carat is subdivided into 100 ‘points.’ This allows very precise measurements to the hundredth decimal place. A jeweler may describe the weight of a diamond below one carat by its ‘points’ alone. For instance, the jeweler may refer to a diamond that weighs 0.25 carats as a ‘twenty-five pointer.’ Diamond weights greater than one carat are expressed in carats and decimals. A 1.08 carat stone would be described as ‘one point oh eight carats.’

How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA

Watch this video from the GIA for even more in-depth information about the GIA’s Diamond Grading Guide

Keno Brothers Jewelers is the leading buyer of goldfine jewelry, fine watches such as Patek Philippe and Rolexvintage watches and diamonds in the re-sale market. Keno Bros provides a truly liquid market for previously owned gold, jewelry, diamonds, and watches of all types. Keno Brothers Jewelers has been a trusted Fort Lauderdale jewelry store in the community for over 30 years.