Diamonds · Milford, Ohio
Diamonds at Kirk & Company, chosen with care.
A diamond is rarely just a purchase. It marks a moment, a milestone, or a memory you intend to keep. Whether you are choosing an engagement ring, designing a custom piece, or comparing natural and lab grown diamonds for the first time, we will help you understand exactly what you are looking at.
- Natural and lab grown
- Family-owned since 1991
- No pressure, ever
Why Kirk & Company
Diamonds, guided by people who know them.
Our team includes designers, a gemologist, and goldsmiths. When you choose a diamond with us, the person guiding you also understands how it will set, how it will wear, and how it will pair with the design you have in mind. That is the difference between picking a stone from a tray and choosing a stone for a piece you will love for a lifetime.
We have been helping families choose, design, and care for diamond jewelry since 1991, and we have called Milford, Ohio home since 2007. We are a third-generation, family-owned jewelry store serving Milford, Madeira, Indian Hill, Mason, Loveland, and the greater Cincinnati area.
Natural and lab grown
Both are real diamonds. You choose what matters.
We offer both, and either can be set into an engagement ring, a wedding band, or fine jewelry of any kind. The difference is in how they are formed and how that lines up with what matters to you.
Natural diamonds
Formed by the earth.
Natural diamonds formed deep beneath the earth’s surface over one to three billion years. They are valued for their origin, their rarity, and their long place in fine jewelry. Clients who choose natural diamonds often care most about tradition and a piece meant to be passed down.
Lab grown diamonds
Grown with precision.
Lab grown diamonds are created in a controlled environment using technology that recreates the conditions in which diamonds form. They are chemically and physically identical to natural diamonds. Clients who choose lab grown diamonds often care most about size, budget flexibility, or modern sourcing.
The 4Cs of diamond quality
Four qualities. Explained in person.
Every diamond, natural or lab grown, has measurable qualities that affect how it looks. We educate to inform, not to sell, so we walk every client through the 4Cs with real diamonds in hand.
- Cut
How it handles light
Cut has the greatest impact on how a diamond looks. A well-cut diamond returns light beautifully. A poorly cut one can look dull at any size.
- Color
How white it appears
Graded from colorless to light yellow. The right grade depends on the shape, the setting, and the metal you choose.
- Clarity
What’s inside
Natural characteristics within the stone. Many are invisible to the eye, which leaves room in your budget for what matters more.
- Carat
How much it weighs
Carat measures weight, not size. Two diamonds of the same weight can look different depending on cut and shape.
Loose diamonds and settings
Find the stone. Then make it yours.
We carry a range of loose diamonds in our showroom and have access to thousands more through trusted suppliers. When you find a stone you love, we can set it into:
- A ready-to-customize setting from our Build Your Own Ring collection
- A fully custom design developed with you from concept to finished piece
Our selection process
It starts with a conversation.
You are not expected to come in with a final idea. Most clients do not. Many return for a follow-up visit or two before deciding on something significant, and that is welcome.
- 01
We ask about you
What you are celebrating, who it is for, and what matters most to you.
- 02
We show you options
Natural, lab grown, or both, within your budget.
- 03
We compare diamonds side by side
See the 4Cs in real time, with real diamonds in hand.
- 04
We talk through settings and timing
From a ready-to-customize setting to a fully custom design.
- 05
You decide what’s next
Even if that next step is to go home and think about it. There is no obligation.
Beyond engagement rings
Diamonds for every milestone.
- Diamond engagement rings
- Women’s wedding bands and anniversary bands
- Men’s wedding bands
- Diamond stud earrings and hoops
- Tennis bracelets and bangles
- Necklaces, pendants, and lockets
- Fashion, stacking, and right-hand rings
- Heirloom redesigns using diamonds you already own
- Gifts for anniversaries and milestones
Considering a piece for a meaningful occasion? An appointment is a good place to start.
Caring for your diamonds
Durable stones. Settings that need attention.
Diamonds are durable, but the prongs and settings that hold them wear over time. We recommend bringing your diamond jewelry in every six months for a complimentary cleaning and inspection.
When something needs attention, our jewelers handle prong repair, retipping, resizing, and stone setting in-house at our Milford store.
Frequently asked questions
Good questions. Honest answers.
Still wondering about something? Call or text us at (513) 575-5475.
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically and physically identical to natural diamonds. The difference is where they were formed: natural diamonds formed in the earth over billions of years, while lab grown diamonds are created in a controlled environment.
How do I choose between a natural and a lab grown diamond?
It comes down to what matters most to you. Clients who choose natural diamonds often value tradition, rarity, and heirloom meaning. Clients who choose lab grown diamonds often value size and budget flexibility. We are happy to show you both side by side.
Which of the 4Cs matters most?
Cut has the greatest impact on how a diamond looks, because it determines how the stone returns light. We will walk you through all four in person so you can see how each one affects the diamond you are considering.
Does your team include a gemologist?
Yes. Our team includes designers, a gemologist, and goldsmiths, so the person helping you choose a diamond also understands how it will be set and how it will wear.
Can you set a diamond I already own?
Yes. We regularly reset family diamonds into new designs, from a simple new setting to a fully custom piece. Bring your diamond in and we will talk through your options.
Do I need an appointment to look at diamonds?
Walk-ins are always welcome, but an appointment gives you dedicated time with a member of our team to compare diamonds without feeling rushed. We recommend booking ahead for engagement ring and custom design conversations. You can make an appointment online or call us.
How do I know I am getting a quality diamond?
Every diamond we sell comes with documentation appropriate to its type. Natural diamonds typically include a GIA grading report or equivalent. Lab grown diamonds include a GIA Laboratory-Grown Diamond Quality Assessment or equivalent documentation. Our gemologist is happy to walk you through any report during your appointment.
Do you offer financing?
Yes. We offer financing through Wells Fargo Jewelry Advantage and Affirm, subject to credit approval. See our financing options for details.
Next step
See your diamond in person.
The clearest way to choose a diamond is to see it side by side with another, against your skin tone, on your hand, in your style.
117 Main St · Historic Downtown Milford, Ohio