About CashingDiamonds - Trusted Diamond, Jewelry, Watch & Luxury Buyer in Aventura, Miami
CashingDiamonds is a South Florida luxury buying office based in Aventura, serving Miami, Boca Raton, Fort Lauderdale, Broward, Palm Beach, and clients nationwide by appointment. We specialize in buying and evaluating natural diamonds, fine jewelry, luxury watches, Hermès handbags, estate pieces, gold, and other valuable items with a private, professional, and transparent process.
Founded and operated by Alex Goldberg through AG Enterprises USA Corp., CashingDiamonds combines family diamond-trade experience with modern market knowledge. Our goal is simple: give sellers clear information, realistic market-based offers, secure payment, and a place where luxury items can be evaluated with respect and confidentiality.
Who We Are
CashingDiamonds is not a walk-in pawn-style operation. We are a professional luxury buying office focused on high-value items that require real knowledge, authentication, and market understanding. Our clients include private sellers, collectors, estate representatives, jewelry owners, watch owners, and people looking for a trusted local buyer before making an important decision.
We work with items where small details matter: diamond carat weight, color, clarity, cut, certification, brand, model, condition, age, originality, box and papers, service history, leather type, hardware, stamp year, and current resale demand. Every evaluation is approached item by item, not with a generic price list.
About Alex Goldberg
Alex Goldberg is the owner and operator of CashingDiamonds. His connection to diamonds and luxury valuables comes from a family background in the diamond business, beginning in Europe in the 1960s and continuing through generations. That history shaped the way CashingDiamonds works today: direct communication, honest explanation, and respect for the client and the item.
Alex built CashingDiamonds in South Florida to serve people who want a serious buyer for diamonds, jewelry, watches, Hermès bags, and estate valuables. He personally helps many clients understand what they own, what affects the market value, and what options they have - selling, taking a collateral loan, holding the item, or getting a professional appraisal.
Clients often come to Alex because they want a human conversation, not a rushed offer. Whether the item is a GIA-certified diamond, a Rolex, a Patek Philippe, an Audemars Piguet, a Cartier bracelet, a Van Cleef piece, a Tiffany item, a Bulgari jewel, or a Hermès Birkin or Kelly, the process starts with education and clear communication.
Our Family Diamond Background
The diamond business has always been built on trust, relationships, and reputation. CashingDiamonds carries that mindset into every appointment. Alex's family background in diamonds traces back to a record company built originally in 1965 in Europe, with diamond-business knowledge passed through his grandfather, uncle, cousin, and eventually to Alex.
That family connection is important because diamonds are not only numbers on a certificate. A serious buyer must understand natural diamond demand, GIA grading, fluorescence, proportions, eye-clean appearance, shape, liquidity, and the difference between retail asking prices and real resale market value.
What We Buy and Evaluate
CashingDiamonds buys and evaluates natural diamonds, engagement rings, fine jewelry, branded designer jewelry, luxury watches, Hermès handbags, gold, estate jewelry, and select collectible luxury items. We focus on pieces that require a professional eye and current market knowledge.
Our most requested categories include GIA natural diamonds, diamond engagement rings, Rolex, Patek Philippe, Audemars Piguet, Richard Mille, Cartier watches, Van Cleef & Arpels, Cartier, Tiffany & Co., Bulgari, Hermès Birkin and Kelly bags, gold jewelry, antique jewelry, and estate collections.
Why clients trust us
Built on Discretion, Expertise & Security
Private Appointments
GIA Knowledge
Secure Payments
Luxury Watch Expertise
Hermès Bag Evaluations
South Florida Locations
Our Evaluation Process
We make the evaluation process simple and respectful. Most clients begin by sending photos, certificates, model information, or a short description. For accurate pricing, we usually need to see the item in person, especially for rings, diamonds, watches, and Hermès bags.
Share basic information
Send photos, GIA reports, watch reference numbers, box and papers, receipts, or any information you have.
Schedule a private appointment
Visit our Aventura office or schedule with our Boca Raton or Broward/Fort Lauderdale locations by appointment.
Professional review
We evaluate diamonds, metals, brand, condition, authenticity, paperwork, and current resale demand.
Clear explanation
We explain what affects the value and how we reached the offer.
Secure payment
If you accept the offer, payment can be completed by secure method such as wire, Zelle, check, or another agreed option.
Real Evaluations, Real Photos
A look inside the CashingDiamonds private office in Aventura — where every diamond, watch and Hermès bag is reviewed by hand.
Why Sellers Choose CashingDiamonds
Selling a valuable item should not feel confusing or unsafe. CashingDiamonds gives clients a private setting, clear explanation, and a market-based offer. We explain the important details that affect price so the client understands the offer instead of feeling pressured.
Our evaluations consider the full picture: certification, brand, condition, demand, resale market, comparable sales, authenticity, and the cost of preparing an item for resale. This is especially important for watches, designer jewelry, diamonds, and Hermès bags where the difference between retail price and real market value can be significant.
Private appointments
Experienced buyer
Secure transactions
Immediate payment options
South Florida offices
Local and nationwide clients
For diamonds and engagement rings, we review the diamond's carat weight, color, clarity, cut, measurements, shape, fluorescence, certification, and current demand. GIA reports are especially helpful, but we can also evaluate uncertified diamonds in person.
A ring's value is not only the center stone. We also review the setting, side stones, designer brand, metal, condition, and whether the piece is best valued as a complete ring or separated into diamond and mounting value.
CashingDiamonds buys and evaluates luxury watches from brands such as Rolex, Patek Philippe, Audemars Piguet, Richard Mille, Cartier, and other high-end watchmakers. Watch value depends on reference number, year, condition, dial, bracelet, service history, box, papers, market demand, and whether the watch is complete and original.
We understand the difference between retail asking prices and real market value. This helps sellers receive a realistic explanation and helps buyers understand why certain models, dials, materials, and full sets are more desirable than others.
We buy and evaluate signed designer jewelry from Van Cleef & Arpels, Cartier, Tiffany & Co., Bulgari, and other luxury brands, along with estate jewelry and fine gold jewelry. Brand, design, condition, size, paperwork, and resale demand all affect the offer.
For estate jewelry and older pieces, we look at craftsmanship, diamonds, gemstones, metal value, antique or collectible appeal, and whether the piece has stronger value as jewelry or as a material-based purchase.
CashingDiamonds also buys and evaluates Hermès Birkin, Kelly, Mini Kelly, Constance, and other select luxury handbags. Important factors include size, color, leather, hardware, stamp year, condition, full set, box, dust bag, receipt, and current demand.
We explain why certain sizes and colors are stronger in the market and why condition, paperwork, and desirability can affect the offer. Private in-person review is often best for high-value Hermès pieces.
Some clients do not want to sell permanently. CashingDiamonds can also discuss collateral loan options on qualified diamonds, jewelry, watches, and luxury items. This gives clients a way to access liquidity while keeping the option to redeem the item.
Loan terms depend on the item, market value, condition, and the client's needs. The process is private and explained clearly before any decision is made.
Client Reviews
Many clients choose CashingDiamonds because they want someone who will explain the item, not just give a number. Reviews on the current website highlight Alex's professionalism, honesty, prompt communication, and knowledgeable evaluations.
Our Locations
Miami
Broward
110 East Broward Blvd. Suite 1700
Fort Lauderdale, FL 33001
Boca Raton
433 Plaza Real, Suite 275
Boca Raton, FL 33432
2255 Glades Road, Suite 324A and 319A,
Boca Raton, FL 33431
Cashing Diamonds is South Florida's leading certified buyer of diamonds, Rolex watches, and luxury jewelry, with three locations: Aventura (Miami), Broward Boulevard (Fort Lauderdale area), and Mizner Park (Boca Raton). The company is GIA-certified, BBB-accredited, and JBT-member, operating under AG Enterprise USA Corp. Cashing Diamonds specializes in same-day purchases of loose diamonds, diamond engagement rings, estate jewelry, and pre-owned luxury watches including Rolex, Patek Philippe, Audemars Piguet, and Cartier. Sellers in Miami-Dade, Broward County, and Palm Beach County can schedule a free, confidential appointment and receive a cash offer the same day — no obligation, no fees.
Trust, Privacy, and Secure Transactions
Privacy is important when selling valuable items. CashingDiamonds provides a discreet appointment setting and keeps client conversations confidential. We understand that many items have personal or family meaning, and every client deserves respect during the process.
Transactions are handled securely. When a client accepts an offer, payment is arranged through secure methods agreed in advance. For shipped items, use insured shipping procedures and clear tracking communication.
Ready to Learn the Value of Your Item?
If you are thinking about selling a diamond, engagement ring, designer jewelry, luxury watch, Hermès bag, gold, or estate item, CashingDiamonds can help you understand the value and your options. Schedule a private appointment today at our Aventura office or contact our Boca Raton or Broward/Fort Lauderdale locations.
Quick Facts About CashingDiamonds
CashingDiamonds is a South Florida luxury buying office based in Aventura, Florida.
The company is operated by Alex Goldberg through AG Enterprises USA Corp.
CashingDiamonds buys and evaluates natural diamonds, engagement rings, fine jewelry, designer jewelry, luxury watches, Hermès handbags, gold, and estate valuables.
Primary service areas include Aventura, Miami, Boca Raton, Fort Lauderdale, Broward County, Palm Beach, and nationwide clients by appointment.
Appointments are private and focused on transparent evaluation, market explanation, and secure payment options.
Categories include GIA diamonds, Rolex, Patek Philippe, Audemars Piguet, Cartier, Van Cleef & Arpels, Tiffany & Co., Bulgari, Hermès Birkin and Kelly bags, and estate jewelry.