When it’s time to sell loose diamonds, choosing the right buyer makes all the difference in the value you receive. At Diamond Source Jewelers, we offer a professional, transparent diamond buying service led by a GIA Graduate Gemologist with over four decades of experience. Whether you’re looking to sell a single loose diamond, multiple stones, or specialty diamonds, we provide fair market value and immediate payment options. Our personalized approach ensures you receive top dollar for your precious gems in a comfortable, pressure-free environment.
Professional Diamond Buying Services by a GIA Graduate Gemologist
When selling something as valuable as a diamond, expertise matters. Bruce Chase, the owner and founder of Diamond Source Jewelers, brings over 40 years of diamond industry experience to every evaluation. As a GIA Graduate Gemologist, Bruce has completed the most prestigious gemological education available, providing him with comprehensive knowledge of diamond grading, evaluation, and market value.
This extensive experience means that when you bring your loose diamonds to Diamond Source Jewelers, they’re being evaluated by someone who truly understands their worth. Unlike online platforms or large chain stores where your diamonds might be assessed by staff with minimal training, Bruce personally examines each stone, identifying the unique characteristics that determine its true market value.
The difference between selling to a genuine expert versus a corporate buyer can be substantial. Many sellers are surprised to learn that certain aspects of their diamonds—characteristics that might be overlooked by less experienced buyers—can significantly increase their value. Bruce’s trained eye can identify these valuable features, ensuring you receive a fair and competitive offer.
Additionally, as an independent jeweler, Diamond Source Jewelers can often offer more competitive prices than large chains that have significant overhead costs. We’ve built our reputation on fair, transparent evaluations and honest dealings with every customer who walks through our door.
What Types of Loose Diamonds We Buy
At Diamond Source Jewelers, we purchase a wide variety of loose diamonds to accommodate sellers with different types of stones. Our comprehensive buying program includes:
- GIA certified diamonds of all sizes
- Non-certified loose diamonds
- Natural colored diamonds (yellow, pink, blue, etc.)
- Melee diamonds (small diamonds under 0.18 carats)
- Old European and old mine cut diamonds
- Diamonds from estate jewelry
- Diamonds of various shapes (round, princess, emerald, oval, etc.)
Whether you have a single diamond or a collection, we’re interested in evaluating your stones for purchase. Our expertise in various diamond types allows us to offer fair market value regardless of the stone’s characteristics.
GIA Certified vs. Non-Certified Diamonds
When selling loose diamonds, certification can significantly impact the value and sales process. GIA (Gemological Institute of America) certified diamonds come with a detailed grading report that verifies the stone’s characteristics, including the 4Cs: carat weight, cut quality, color grade, and clarity grade. This documentation provides verified information about your diamond’s qualities, making the valuation process more straightforward and often resulting in higher offers.
However, we understand that not all diamonds come with certification. Non-certified diamonds require more extensive evaluation to determine their characteristics and value. At Diamond Source Jewelers, we have the expertise and equipment to accurately grade non-certified diamonds, ensuring you receive a fair offer based on the stone’s actual qualities rather than an unnecessarily conservative estimate. While certified diamonds typically command higher prices due to the certainty they provide, we offer competitive prices for quality non-certified diamonds as well.
Colored and Specialty Diamonds
Colored diamonds and specialty cuts represent unique segments of the diamond market with their own valuation criteria. Natural colored diamonds—including yellow, pink, blue, brown, and other hues—are evaluated differently than colorless diamonds. Their value depends on the intensity and distribution of color, rarity of the specific color, and overall quality of the stone.
Similarly, specialty cut diamonds, such as old European cuts, old mine cuts, and other antique cutting styles, have distinct characteristics that appeal to specific buyers. These diamonds, often found in estate jewelry, are valued not just for their raw material but for their historical cutting techniques and unique appearance. Bruce’s extensive experience with these specialty diamonds ensures proper identification and fair valuation of these distinctive stones, which might be undervalued by buyers lacking specific expertise in these categories.
The Diamond Selling Process: Simple, Secure, and Transparent
We’ve designed our diamond buying process to be straightforward, secure, and transparent, removing the stress and uncertainty often associated with selling valuable items. Here’s what to expect when you sell loose diamonds to Diamond Source Jewelers:
- Initial Contact: Call us or visit our Greenwood Village store to discuss your diamonds
- Evaluation Appointment: Schedule a convenient time for a professional evaluation
- Diamond Assessment: Your diamonds are carefully examined and graded using professional equipment
- Offer Presentation: Receive a fair market offer with a detailed explanation of how we arrived at that value
- Decision Time: Take your time to consider our offer with no pressure
- Payment: Upon acceptance, receive immediate payment via your preferred method
Throughout this process, your diamonds remain your property until you accept our offer. There’s never any obligation to sell, and we encourage you to ask questions and understand exactly how we determine the value of your diamonds. This transparency builds trust and ensures you’re comfortable with every aspect of the transaction.
In-Person Evaluation in Our Greenwood Village Store
Our Greenwood Village location provides a secure, professional environment for diamond evaluations. When you visit our store, your diamonds are assessed using specialized gemological equipment that allows for precise grading and valuation. Bruce Chase personally conducts these evaluations, examining each diamond under proper lighting conditions and using professional tools such as microscopes, diamond colorimeters, and precision scales.
This face-to-face evaluation offers several advantages over remote or online selling options. You can observe the assessment process, ask questions in real-time, and gain insights into your diamond’s characteristics. The in-person evaluation also eliminates the risks associated with shipping valuable items and allows for immediate feedback and offer presentation. Many clients appreciate this personalized approach, which builds confidence in the valuation process and helps them make informed decisions about selling their diamonds.
Secure Shipping Options for Out-of-State Sellers
For clients unable to visit our Greenwood Village store, we offer secure options for sending diamonds for evaluation. We understand that shipping valuable items requires careful consideration of security and insurance. Our team will guide you through the process, recommending reputable shipping services with appropriate insurance coverage and tracking capabilities.
When sending diamonds to Diamond Source Jewelers, we recommend using FedEx or UPS with full insurance coverage, signature confirmation, and tracking. All shipped diamonds are carefully documented upon receipt, evaluated promptly, and stored securely until a decision is made. Following the evaluation, we contact you with our offer and discuss your options. If you choose not to sell, we return your diamonds using equally secure shipping methods at our expense. This process ensures peace of mind for out-of-state sellers while maintaining the integrity and security of your valuable diamonds.
How We Determine Your Diamond’s Value
Diamond valuation is a precise science that requires both technical knowledge and market awareness. At Diamond Source Jewelers, we employ a comprehensive approach to determine the fair market value of your diamonds. This process goes beyond simple formulas, taking into account all factors that influence a diamond’s worth in today’s market.
Our valuation begins with a thorough assessment of your diamond’s physical characteristics using professional gemological equipment. We examine each stone under magnification, measure its dimensions precisely, and determine its weight to the hundredth of a carat. For diamonds with GIA or other reputable laboratory certificates, we verify that the stone matches the documentation provided.
Beyond the physical examination, we consider current market conditions, which can significantly impact diamond values. The diamond market fluctuates based on supply and demand, economic conditions, and consumer trends. Our continuous involvement in the diamond market allows us to offer values that reflect true current market prices rather than outdated formulas or arbitrary percentages of retail price.
We also evaluate the marketability of each specific diamond. Some combinations of characteristics are more desirable and liquid in the current market, affecting the price we can offer. Throughout this process, we maintain complete transparency, explaining how each factor contributes to our final offer.
The 4Cs: The Foundation of Diamond Valuation
The 4Cs—carat weight, cut, color, and clarity—form the fundamental framework for diamond evaluation. Each of these characteristics significantly impacts a diamond’s value, though not always in equal measure.
Carat weight is the most straightforward measure, referring to the diamond’s physical weight (1 carat = 0.2 grams). Generally, larger diamonds command higher prices per carat, with price jumps at key weight thresholds like 0.50ct, 0.75ct, 1.00ct, and so on.
Cut quality affects how the diamond interacts with light, determining its brilliance, sparkle, and overall visual appeal. A well-cut diamond can appear more valuable than a poorly cut stone of the same weight. We assess cut quality by examining proportions, symmetry, and polish, which collectively determine how effectively the diamond returns light to the eye.
Color grading for traditional white diamonds runs from D (completely colorless) to Z (light yellow or brown), with colorless stones typically commanding higher prices. However, fancy colored diamonds follow different valuation criteria based on the intensity and rarity of their natural color.
Clarity measures the presence of internal characteristics (inclusions) and surface features (blemishes). The clarity scale ranges from Flawless (no inclusions or blemishes visible under 10x magnification) to Included (inclusions visible to the naked eye). Cleaner stones generally command higher prices, though the visibility and location of inclusions matter more than their mere presence.
Additional Factors That Affect Diamond Price
While the 4Cs provide the foundation for diamond valuation, numerous other factors influence the final value of your loose diamonds. Diamond fluorescence—the glow some diamonds exhibit under ultraviolet light—can either enhance or detract from value depending on its intensity and the diamond’s color grade. For some near-colorless diamonds, mild fluorescence can actually improve apparent color, while strong fluorescence might affect transparency.
Diamond shape also plays a significant role in valuation. Round brilliant cut diamonds typically command the highest prices due to their optimal light performance and consistent demand. Fancy shapes like princess, emerald, oval, and cushion cuts are generally priced lower than rounds of equivalent quality, though market trends can occasionally shift this balance for certain shapes.
The presence of professional laboratory certification, particularly from GIA, adds confidence and value. Certified diamonds typically sell for higher prices than non-certified stones of similar quality due to the certainty they provide to buyers. The quality of the cut specifically—beyond the basic cut grade—can significantly impact value, with precision-cut diamonds commanding premium prices due to their superior visual performance.
Why Sell Your Loose Diamonds to Diamond Source Jewelers
Choosing Diamond Source Jewelers for selling your loose diamonds offers several distinct advantages over other buying options. Our combination of expertise, fair pricing, and personalized service creates a selling experience that prioritizes your interests and maximizes your return.
- Expert Evaluation by a GIA Graduate Gemologist: Your diamonds are assessed by Bruce Chase, who brings 40+ years of experience and formal GIA education to every evaluation
- Transparent Valuation Process: We explain exactly how we determine your diamond’s value, educating you throughout the process
- No Middleman: As direct buyers, we eliminate intermediaries who would otherwise reduce your payout
- Immediate Payment: Receive payment on the spot when you accept our offer, with no waiting periods
- No Pressure Environment: Take all the time you need to consider our offer without sales tactics or urgency
Many sellers come to us after disappointing experiences with online buyers, pawn shops, or large chain jewelers who lack the expertise to properly value their diamonds or who offer substantially below-market prices. Our approach is fundamentally different—we build long-term relationships through fair dealing and transparency, not through maximizing profit on individual transactions.
Fair and Competitive Pricing
Our pricing philosophy centers on offering fair market value that reflects your diamond’s true worth in the current market. Unlike many buyers who apply arbitrary formulas or percentages to determine offers, we evaluate each diamond individually based on its specific characteristics and marketability.
This approach allows us to offer higher prices for exceptional diamonds with desirable qualities that formula-based buyers might overlook. For instance, a diamond with excellent proportions, minimal fluorescence, and optimal clarity characteristics often warrants a premium over standard market prices—a distinction that many buyers miss or ignore.
As an independent jeweler with lower overhead than large chains, we can often extend more competitive offers. We also maintain direct connections with diamond manufacturers and wholesalers, giving us multiple outlets for the diamonds we purchase and enabling us to offer better prices than buyers with limited resale channels. Our transparent pricing means we’ll explain exactly how we arrived at our offer, allowing you to make an informed decision without pressure or uncertainty.
Immediate Payment Options
When you accept our offer for your loose diamonds, you’ll receive payment immediately through your preferred method. We offer several convenient payment options, including cash for immediate transactions, business checks that can be deposited same-day, and bank transfers for larger purchases. This flexibility ensures you receive your funds in the manner most convenient for your needs.
Unlike some buyers who impose waiting periods or escrow arrangements, our straightforward process allows for immediate conclusion of the transaction. There are no hidden fees, processing charges, or unexpected deductions from the agreed price. The amount we offer is the amount you receive, with no surprises or delays. This immediate payment policy reflects our commitment to transparent, customer-friendly business practices and respects the value of your time as well as your diamonds.
Alternatives to Selling: Diamond Trade-In and Upgrades
Beyond outright selling, Diamond Source Jewelers offers alternative options that might better suit your needs, particularly if you’re considering acquiring new jewelry. Our diamond trade-in and upgrade programs provide flexibility and value that simple selling doesn’t offer.
Our diamond trade-in program allows you to apply the full assessed value of your diamond toward new jewelry purchases. This can be particularly advantageous as you might receive higher value for your diamond as trade-in credit than as a cash offer. This option is ideal for those looking to refresh their jewelry collection while retaining the investment value of their existing diamonds.
For clients interested in upgrading to a larger or higher-quality diamond, we offer specialized diamond upgrade options. This program allows you to trade your current diamond and pay only the difference for a more valuable stone. Many clients find this to be an excellent way to preserve the sentimental value of an important jewelry piece while enhancing its appearance and value.
We also offer custom design services that can transform your loose diamonds into new, personalized jewelry pieces. This option allows you to reimagine your diamonds in contemporary settings that better reflect your current style while preserving the diamonds that hold personal significance.
Common Questions About Selling Loose Diamonds
When considering selling loose diamonds, many clients share similar questions about the process, requirements, and expectations. Here are answers to the most frequently asked questions we receive:
Do I need a certificate to sell my diamond?
While having a GIA or other reputable laboratory certificate can increase your diamond’s value and streamline the evaluation process, it’s not required. We routinely purchase non-certified diamonds, using our expertise and equipment to accurately determine their characteristics and value. If you do have certification, please bring it along as it provides valuable information that can help us offer the best possible price.
What size diamonds do you purchase?
We buy diamonds of all sizes, from small melee diamonds (under 0.18 carats) to large center stones. While larger diamonds (over 0.50 carats) typically command higher per-carat prices, we also purchase smaller stones, particularly when they’re of good quality or part of a collection. There’s no minimum size requirement for our buying service.
How long does the evaluation process take?
For in-store evaluations, we typically complete the assessment within 30-45 minutes, depending on the number and complexity of diamonds being evaluated. This includes thorough examination, grading, market analysis, and offer preparation. We believe in taking the necessary time to properly evaluate your diamonds rather than rushing through a cursory examination.
What if my diamond is still in a setting?
We can evaluate diamonds while still in settings, though this may limit the precision of some measurements. For the most accurate valuation, particularly for larger or higher-value stones, we recommend having the diamond removed from its setting. If you prefer, we can refer you to our jewelry technicians who can professionally remove the stone for evaluation and reset it if you decide not to sell.
How is payment handled?
Upon accepting our offer, you can receive immediate payment through your preferred method: cash (up to certain limits), business check, or bank transfer for larger amounts. There are no waiting periods or processing delays—the transaction is completed during your visit.
Contact Us to Sell Your Loose Diamonds Today
Ready to discover what your loose diamonds are truly worth? Diamond Source Jewelers makes selling diamonds a straightforward, rewarding experience. Contact us today to schedule a no-obligation evaluation with our GIA Graduate Gemologist, Bruce Chase.
Visit our comfortable, secure showroom in Greenwood Village, conveniently located at 5910 South University Blvd, Unit C-14, Greenwood Village, CO 80121. We’re open Tuesday through Saturday from 11:00 AM to 5:00 PM.
For immediate assistance or to schedule an appointment, call us at (720) 706-0021 or email Info@diamondsourcejewelers.com. Whether you’re looking to sell a single diamond or an entire collection, we’re here to provide expert evaluation, fair offers, and immediate payment in a pressure-free environment.
Diamond Source Jewelers—where your diamonds are valued by true experts who understand their worth.
Summary
Selling loose diamonds requires trust, expertise, and transparency—qualities that define the Diamond Source Jewelers experience. With evaluation by a GIA Graduate Gemologist with over 40 years of industry experience, you can be confident your diamonds will be accurately assessed and fairly valued. Our straightforward process, immediate payment options, and pressure-free environment make selling diamonds simple and rewarding. Whether you choose to sell outright, trade in, or upgrade, Diamond Source Jewelers provides options that respect both your diamonds’ value and your personal needs. Contact us today to experience the difference that true diamond expertise makes.

