Skip to content
By Appointment Only
(602) 445-6113
Call Schedule

Diamond Buyer in Phoenix & Chandler

Sell Diamonds & Diamond Jewelry in Phoenix & Chandler, AZ

Bring loose diamonds, engagement rings, wedding sets, estate diamond jewelry and other diamond pieces to Valley Goldmine for a private, in-person evaluation.

Loose or mounted Grading report optional No obligation to sell
Diamond jewelry prepared for a professional evaluation
A diamond is more than its carat weight. Cut, color, clarity, size, documentation and current market demand can all matter.
Bring It As-Is Loose or mounted, with or without paperwork.
Understand the Factors Learn what influences the value of your diamond.
Jewelry Matters Too The setting and precious metal can have separate value.
Your Decision Review the offer without pressure to sell.

What We Evaluate

Loose diamonds, diamond jewelry and estate pieces.

You do not need to remove a diamond from its setting before your appointment. Bring the piece in the condition you have it.

Loose Diamonds

Unmounted diamonds with or without a grading report or other documentation.

Engagement Rings

Solitaire, halo, three-stone and other engagement-ring styles in gold or platinum settings.

Wedding Sets

Engagement rings and matching bands, anniversary bands and other diamond wedding jewelry.

Estate Diamond Jewelry

Inherited, vintage and estate pieces where both the stones and finished jewelry may deserve consideration.

••

Diamond Earrings

Studs, drops, hoops and other diamond earrings, including single earrings when a pair is incomplete.

Pendants & Other Jewelry

Diamond pendants, necklaces, bracelets and other pieces set in precious metal.

Customer Experience

Understand the value before you decide.

A diamond evaluation should leave you with a clearer understanding of what you have, not more questions.

“Thank you, Mary for being patient and willing to explain how precious metals and diamonds are valued on the open market. Your broad knowledge and expertise in the areas of estate and gold jewelry made my visit most educational.”

Larry Broxton

Diamond Value

What determines what a diamond may be worth?

There is no single price based on size alone. Diamond value is influenced by the characteristics of the stone and by what buyers are willing to pay for comparable diamonds in the current market.

Carat Weight

Carat measures a diamond’s weight. Larger diamonds can command more per carat, but size is only one part of the evaluation.

Cut

For many diamonds, proportions and craftsmanship affect how the stone handles light and how desirable it may be in the market.

Color

Color grading describes the degree of color visible in a diamond and can materially affect market value.

Clarity

Clarity considers internal and external characteristics and how noticeable they are under standardized examination.

Shape & Marketability

Round, oval, cushion, emerald and other shapes can have different levels of demand depending on the market.

Documentation

A recognized grading report can provide useful independent information about a stone’s characteristics, though paperwork is not required for every evaluation.

Understanding Your Diamond

The 4Cs are a starting point, not the whole resale market.

Carat, cut, color and clarity are widely used to describe diamond quality. Those characteristics can help explain why two diamonds of similar size may have very different values.

For a seller, however, the important question is not simply what the stone was appraised for when purchased. A resale offer reflects the characteristics of the diamond and the market for that stone today.

Do you need a grading report?

No. If you have a laboratory grading report, appraisal, receipt or other paperwork, bring it with you because it may provide useful context. If you do not have documentation, you can still schedule an evaluation.

Diamond jewelry has two components

When a diamond is mounted in gold or estate jewelry, the diamond and the setting should not automatically be treated as one undifferentiated item. The stone can have value, and the precious-metal setting can have value as well.

Have a diamond you’re considering selling?

Schedule a private evaluation and get a clearer understanding of your stone before making a decision.

Grading Reports & Appraisals

Bring your paperwork if you have it — but don’t worry if you don’t.

Documentation can help identify what you have, particularly with larger or higher-quality stones. It should be treated as supporting information rather than a guarantee of what the diamond will sell for today.

Bring laboratory grading reports when available. Appraisals and original receipts can provide useful background. You can still schedule an evaluation without paperwork.

What to Expect

A private diamond evaluation without the pressure.

Some diamonds can be evaluated during the appointment, while others may require additional market research or specialist input before a final offer is available.

1

Schedule

Choose a Phoenix or Chandler appointment.

2

Bring the Diamond

Bring it loose or mounted, plus a government-issued photo ID and any paperwork you have.

3

Review the Stone

Relevant characteristics, the setting and available documentation are considered.

4

Consider the Offer

Review the offer and decide whether selling makes sense for you.

Diamond Jewelry

The diamond and the setting may each have value.

An engagement ring or estate piece can contain multiple sources of value. Evaluating the stone separately from the precious-metal setting helps create a clearer picture of the piece as a whole.

The Diamond

Consider carat, cut, color, clarity, shape, documentation and current marketability.

The Setting

Gold or platinum content can contribute additional value, while some estate or distinctive settings may warrant broader consideration.

Side Stones

Accent diamonds and other stones should not automatically be ignored simply because the center stone is the largest.

The Complete Piece

Some jewelry may be more appropriate to consider as finished jewelry rather than only as a collection of raw materials.

Local Diamond Buyer

Private appointments in Phoenix & Chandler

Choose the Arizona office that is most convenient for you. Both locations use the same private appointment process.

View all Valley Goldmine location information →

Phoenix

4600 E. Washington St. Ste 300

Phoenix, AZ 85034

Phoenix location details →
Chandler

1820 E. Ray Rd.

Chandler, AZ 85225

Chandler location details →

Diamond Buyer FAQ

Questions about selling diamonds

Do I need a grading report to sell a diamond?
No. Bring a grading report if you have one, but a diamond can still be evaluated without paperwork.
Can I sell a diamond that is still in a ring?
Yes. You do not need to remove the stone before your appointment. The diamond and the setting can be considered separately during the evaluation.
Is an insurance appraisal the same as resale value?
Not necessarily. An insurance or replacement appraisal may serve a different purpose from a resale offer. The current market for the actual diamond is an important part of determining what a buyer can offer.
What if I inherited the diamond and know nothing about it?
That is fine. Bring the diamond or jewelry as-is along with any paperwork you happen to have. You do not need to identify the stone before scheduling.
Will I receive an offer during the appointment?
Some diamonds may be straightforward to evaluate during the appointment. Others may require additional market research or specialist input before a final offer is available.
Do I have to sell after the evaluation?
No. You can review the offer and decide whether selling makes sense for you.

Ready to find out what your diamond may be worth?

Schedule a private diamond evaluation at Valley Goldmine in Phoenix or Chandler.