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Sell Your Diamond
In St. Louis, MO
If youโre considering selling your diamonds in St. Louis, PawnJewelry.com offers a trusted, professional, and transparent service. From GIA-certified diamonds to vintage jewelry and engagement rings, our GIA-trained Diamond Buying experts ensure you receive fair market value for your valuables.

Testimonials
See What Our Clients Say
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“Great company!!! I sold my Rolex watch, they we’re honest, fast and transparent through the whole process. Payment was quick and simple, the way it should be. I Would highly recommend and I will use again!!!!”
Rated by 900+ company-wide reviews
Google reviewers
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“I highly recommend Diamond Banc for anyone looking to sell or leverage their jewelry. The entire process was incredibly easy and trustworthy l. I sent my jewelry off and had the funds in my bank account in less than 24 hours!”
Rated 4.9/5 stars by 800+ happy
Trustpilot reviewers
Pawn Your Diamonds in St. Louis, MO
Types of Diamonds We Buy at PawnJewelry.com
We purchase a variety of diamond jewelry in St. Louis. Hereโs a breakdown of the items that typically qualify:
Loose Diamonds
Loose diamonds are ideal for selling. They are evaluated on their 4Cs (carat weight, cut, clarity, and color), and diamonds over 1 carat or those with higher clarity and color grades usually receive higher offers. Certified diamonds (such as GIA or AGS certified) are particularly valuable.
Engagement Rings
Engagement rings are one of the most common types of diamonds that people sell. These rings often feature large diamonds and are in demand, especially if they come from designer brands like Tiffany & Co., Cartier, or Harry Winston.
Diamond Earrings
Whether itโs diamond studs, chandeliers, or drop earrings, diamond earrings are always valuable for selling. Earrings made with high-quality diamonds or designer brands often yield higher purchase offers.
Diamond Necklaces & Bracelets
From diamond tennis bracelets to diamond necklaces, these types of jewelry are highly sought after for selling. High-quality diamonds with excellent craftsmanship increase the loan or purchase value of these items.
Vintage & Antique Diamonds
Vintage or antique diamond jewelry often holds historical and collectible value. If you own unique or rare diamond pieces, especially ones with significant age or brand names, their value could be higher than other items.
GIA Certified Diamonds
GIA or AGS certified diamonds are highly valued due to their verified quality. Certification not only ensures authenticity but can also increase your offer by confirming the diamondโs exact grade, size, and quality.
What Affects Diamond Value?

1
Carat Weight
Larger diamonds generally fetch higher prices due to their rarity.
2
Cut
A well-cut diamond reflects light brilliantly, increasing its appeal and value.
3
Color
Diamonds closer to colorless (graded D-F) are more valuable than those with visible tints.
4
Clarity
Fewer inclusions or blemishes translate to a higher value.
5
Certification
A GIA or AGS certification adds credibility and increases a diamondโs marketability, however, we purchase and loan against diamonds with or without certification.
Online or In Person
Why Choose PawnJewelry.com as Your St. Louis Diamond Buyer?
When deciding how to use your diamond to access funds, choosing the right partner is crucial. Hereโs why PawnJewelry.com in St. Louis, MO stands out as the nationโs most trusted resource.
Unmatched Expertise and Accuracy
Our team of professional diamond buyers evaluates diamonds with precision, considering critical factors like the 4Cs (cut, color, clarity, and carat weight), market demand, and diamond certifications. We offer a fair, competitive offer backed by data and industry knowledge.
Fast and Secure Transactions
Once your diamond is evaluated, youโll receive a competitive, no-obligation offer. Accepting the offer means immediate payment, often processed within 24 hours via cash, check, or bank transfer.
Serving St. Louis and Surrounding Areas
PawnJewelry.com serves the greater St. Louis area, including neighborhoods like Mango, Sulphur Springs, Lake Carroll, and Twin Lake. Whether you visit our office or start the process online, we ensure a secure and seamless experience.
St. Louis PawnJewelry Director
Meet Mia Cossey
With over 13 years of distinguished experience in the jewelry industry, Mia Cossey leads Diamond Banc of St. Louis with a commitment to delivering premier service and unparalleled expertise. As a Certified Diamontologist and GSI Diamond Essentials professional, Mia combines technical knowledge with a deep understanding of the luxury jewelry market.
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VISIT US
Pierre Laclede Center
7733 Forsyth Blvd
11th Floor, Suite 1105
Clayton, MO 63105
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OFFICE HOURS
Monday: 10:00 AM โ 5:00 PM
Tuesday: 10:00 AM โ 5:00 PM
Wednesday: 10:00 AM โ 5:00 PM
Thursday: 10:00 AM โ 5:00 PM
Friday: 10:00 AM โ 5:00 PM
Saturday: By Appointment Only

Flexible Loan Options for Diamond Owners
Not ready to sell your diamond outright? At PawnJewelry.com, you can use your diamond as collateral for a flexible loan, giving you immediate cash while retaining ownership.
Loan Highlights:
- No Credit Checks: Approval is based solely on your diamondโs value.
- Fast Access to Cash: Funds are available within 24 hours of approval.
- Secure Storage: Your diamond is stored in a monitored, secure facility.
For more details, explore our loan services or call us to discuss your needs.

FAQs About Selling Diamonds
What If My Diamond Isnโt Certified?
While GIA certification enhances value, we also accept uncertified diamonds. Our experts provide a fair evaluation based on the diamondโs unique attributes.
Do I Need an Appointment to Sell My Diamond?
Appointments are recommended for a personalized experience, but walk-ins are welcome during business hours.
How Is My Diamondโs Value Determined?
We consider factors like carat weight, color, clarity, cut, and market trends. Certification can enhance your offer.
Whatโs the Difference Between Selling and Pawning?
Selling: Receive full payment with no obligations.
Pawning: Use your diamond as collateral for a short-term loan while retaining ownership.
Certified vs. Uncertified Diamonds: Whatโs the Difference?
Certified diamonds often fetch higher prices because they come with documentation verifying their 4Cs. However, uncertified diamonds still hold value. Our experienced buyers evaluate both certified and uncertified diamonds with the same rigorous attention to detail, ensuring fair market offers.
If you have a GIA-certified diamond, you can expect added transparency and trust during the evaluation process.
FAQs
How Do You Determine My Goldโs Value?
We evaluate your gold based on its purity (karats), weight, and current market prices.
Is My Gold Safe During the Loan?
Yes! Your gold is stored in high-security, climate-controlled vaults until you reclaim it.
Can I Reclaim My Gold?
Absolutely. Once your loan is repaid, your gold is returned to you in its original condition.
Selling vs. Pawning Your Diamond
Feature | Selling Your Diamond | Pawning Your Diamond |
---|---|---|
Ownership | Transfer ownership permanently. | Retain ownership during the loan term. |
Payment | Receive full payment immediately. | Access short-term funds as a loan. |
Flexibility | Ideal for items you no longer need. | Great for temporary financial needs. |
Obligations | No further commitment. | Repay loan to reclaim your diamond. |
Both options offer unique benefits depending on your financial goals.
Recent Transactions
Two Ways to Work With Us
Schedule A Visit
Meet one-on-one with a Diamond Banc director & have your items evaluated right in front of you.
Receive An Offer
We will evaluate the pieces youโre interested in selling or securing a loan against right in front of you & present an offer.
Get Funded
Upon accepting the offer, payment will be issued to you on the spot via check or wire transfer.
Find a LocationGet A Quote
Fill out our free online submission form & a member from our headquarters will reach out to you with an initial quote.
Ship Your Item
We provide you with a fully insured shipping label to send your items to our headquarters for final evaluation.
Get Funded
If you accept our offer, we will issue payment immediately via check or wire transfer. Donโt like our offer? No worries! Your item will be quickly returned to you. No risk. No obligation.
Get StartedVisit PawnJewelry.com in St. Louis Today
We proudly serve St. Louis and surrounding areas like Chesterfield, Kirkwood, Florissant, and Webster Groves. Whether youโre selling a loose diamond, an antique ring, or designer jewelry, start your evaluation today!
Our St. Louis office is conveniently located at:
PawnJewelry.com St. Louis Office
Pierre Laclede Center
7733 Forsyth Blvd
11th Floor, Suite 1105
Clayton, MO 63105
PawnJewelry.com vs. Traditional Options
Why Our Process Stands Out
At PawnJewelry.com, we prioritize your needs, ensuring that you have the information and options to make the best decision for your unique situation.
Feature | Traditional Pawn Shops | PawnJewelry.com |
---|---|---|
Purchase Values | Typically low | Higher, based on expertise and industry connection |
Appraisal Expertise | Limited | GIA-trained diamond specialists |
Transparency | Often unclear | Clear, straightforward terms |
Convenience | In-person only | Nationwide mail-in and local service |
Customer Focus | Transaction-focused | Client-centered, flexible options |
Fast. Simple. Secure.
Find Out What Your Diamond
Is Worth Today
Don't let the value of your diamond go untapped. Whether you're looking to pawn your diamond or sell it outright, PawnJewelry.com offers a professional and secure way to maximize your diamond's value.
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