Custom engagement rings · Miami
Custom Engagement Rings
Design your own engagement ring with a Miami jeweler. Pick the stone, the shape and the setting, approve a render, and we make it in 10K, 14K or 18K gold.
- Lab-grown or natural diamonds · moissanite
- 10K · 14K · 18K
- Render before we make it
GOLDZENN designs custom engagement rings with you in Miami, in 10K, 14K or 18K yellow, white or rose gold, with a lab-grown diamond, natural diamond or moissanite center stone. You share an idea, a photo or a sketch; we draw it in CAD, show you a realistic render, and make it only after you approve every detail. Custom engagement rings start at around $1,200, and we confirm the details and the cost with you before anything is made. To start, fill out the form below, call or text 321-521-4651, or visit us at 1056 SW 67th Ave, Miami.
Choose the setting
Start from a style you like, or bring a photo of a ring you saw.
Lab-grown diamond, natural diamond or moissanite?
Lab-grown diamonds are real diamonds. Moissanite is a different stone that looks close to a diamond and costs less.
| Lab-grown diamond | Natural diamond | Moissanite | |
|---|---|---|---|
| What it is | Diamond (carbon), grown in a lab | Diamond (carbon), mined | Silicon carbide, a different gem |
| Hardness (Mohs) | 10 | 10 | 9.25 |
| Look | Same as natural to the eye | The classic diamond look | More rainbow-colored sparkle, most visible in larger stones |
| Price for the same size | Far below natural | Highest | Lowest |
| Report | IGI report with the rings in our collection; confirmed with you for a custom ring | Confirmed with you before production | Stone details confirmed with you before production |
Shape. Compare them in engagement ring shapes on the hand, or browse oval, round, pear, emerald, radiant, cushion, marquise and princess engagement rings.
Setting. Start from a solitaire, a hidden halo, a pavé band or a three-stone ring, then change the prongs, band width, side stones or details.
Report. The lab-grown center stones in our collection come with an IGI report. Read IGI vs GIA for lab-grown diamonds and moissanite vs lab-grown vs natural diamonds.
Pick your gold
10K, 14K or 18K, in yellow, white or rose.
10K vs 14K vs 18K gold for an engagement ring
Karat tells you how much of the metal is pure gold. Lower karat is a harder alloy and resists scratches better; higher karat has a richer yellow, is softer and costs more per gram.
| 10K | 14K | 18K | |
|---|---|---|---|
| Gold content | 41.7% | 58.3% | 75% |
| Yellow color | Lighter, softer yellow | Warm, classic yellow | Richest, deepest yellow |
| Durability | Hardest, most scratch-resistant | A balance of hardness and color | Softest; shows wear sooner |
| Price | Lowest per gram | Middle | Highest per gram |
All three come in yellow, white, rose or two-tone. White gold is often rhodium plated for a bright white finish. More: 10K vs 14K vs 18K gold.
What drives the cost of a custom engagement ring
| Factor | Why it moves the price |
|---|---|
| Center stone | Type (lab-grown, natural or moissanite), shape, carat, color and clarity. With diamonds, this is often the largest share. |
| Gold weight × karat × live gold price | A wider or heavier band uses more gold, and 18K holds more pure gold than 14K or 10K. |
| Side stones and pavé | Every accent stone adds material and setting time. |
| Design complexity | Hidden halos, three-stone layouts, twists and fine details take more labor. |
Because gold prices move every day, the price is set when you place and pay for your order. See how gold prices work and what a lab-grown diamond engagement ring really costs.
From sketch to ring
You approve every detail before we make it.
How to design your own engagement ring with us
- Get in touch. Fill out the form, or call or text us at 321-521-4651, and book a free consultation in our Miami store or by phone, text or email.
- Quote and details. Tell us your budget, the stone, the shape and the style you love. We confirm the details and the cost with you before anything is made.
- CAD and render. We draw your ring in CAD, with exact measurements and stone layout, and present a realistic digital render.
- Your approval. You approve the final specs: ring size, karat and gold color, center stone and its report, side stones and any engraving.
- Crafting. Once you approve the design, our craftsmen make your ring in gold and set the stones.
- Ready to wear. We hand deliver it or ship it fully insured.
Timeline: Custom pieces take approximately 4–6 weeks to make before they ship. Times vary with the complexity of the piece and are estimates, not guarantees. Planning a proposal? Reach out early so there is time for the design and your approval.
Custom ring or a ring from our collection?
Two ways to get your ring, with different rules:
| Ring from our collection | Custom ring designed with you | |
|---|---|---|
| Where you start | The ring builder: pick a design, shape and carat | Your idea, a photo or a sketch, through the form or a consultation |
| Price | Shown online for every design, shape and carat | From around $1,200, quoted with you before anything is made |
| Center stone report | IGI report for the lab-grown center stone | Stone, grading and report confirmed with you before production |
| Returns | 30-day return (Section 3A), unworn, unresized and unengraved | Final sale once production begins (Section 4) |
| Resizing | One free resize within 60 days of delivery | Quoted separately |
| Best for | A design you like as it is | A ring that doesn't exist yet |
Good to know: under Section 3A, engraved rings and any change not offered on our site are final sale. Full terms: Return & Refund Policy.
From our workshop
Videos from our Instagram.
From our studio
Rings from our studio. Yours can be next.
From idea to CAD to finished ring
Every custom ring is drawn in CAD before any gold is used. Two real examples from our design files (approx., from the CAD):
- Six-prong solitaire: 18K yellow gold, approx. 5 g, with an 8.7 mm round center stone held by six prongs.
- Infinity solitaire: 18K yellow gold, approx. 3 g, a 2.50 ct round lab-grown center in four prongs, an infinity motif and a 2.0 mm band.
A spec sheet like these lists the metal, approximate weight, stone size, prongs and band width. The videos above, from our Instagram, show a diamond being set, a pear-cut ring, a marquise ring with diamond leaves and an emerald and pear toi-et-moi.
Your stone, your way
Choose a lab-grown diamond, a natural diamond or moissanite. Lab-grown diamonds are ethically sourced, and the rings in our collection come with an IGI report. For a custom ring, we confirm the center stone and its grading with you before anything is made.
- IGIReport with our collection rings
- 10K–18KYellow, white or rose gold
- 50+ yearsCombined workshop experience
- Miami, FL 331441056 SW 67th Ave · Mon–Fri 10–7, Sat 10–4
Lab-grown or natural: certified either way
We can make any design on this page with a lab-grown or a natural diamond, and we have access to over 2 million diamonds (lab or natural). Your center stone comes with an independent grading report, so you know exactly what you are getting before we set it.
- Lab-grown diamond: IGI report. Every center stone in our engagement ring collection comes with one. It lists the shape, carat weight, color, clarity, measurements and how the diamond was grown, and you can look up the report number on igi.org.
- Natural diamond: GIA report on request. Prefer a natural diamond? Tell us, and we source a GIA-graded stone for your ring and show you the report before anything is made.
Below, on the left, is a real IGI report from one of our diamonds, a 3.50-carat F VS1 lab-grown oval. On the right is an example of a GIA natural diamond report. We blurred the report numbers, barcodes and QR codes. IGI and GIA are independent labs and are not affiliated with GOLDZENN.
What to bring to your free consultation
Bring what you have. Even one photo is enough to start.
- Your budget, so we can suggest the right stone size and quality
- Stone: lab-grown diamond, natural diamond or moissanite
- Shape and setting you like, or photos of rings you saved
- Gold karat and color
- Ring size, if you know it
- Engraving and your proposal date
Rated 4.8 out of 5 across our store reviews on Judge.me. Our workshop team has over 50 years of combined experience, and we have access to over 2 million diamonds, lab-grown or natural.
Caring for your engagement ring
- Take it off for the gym, cleaning products and the pool.
- Clean it with warm, soapy water and a soft brush (see how to clean gold jewelry).
- Have the prongs checked from time to time, and insure your ring.
- Polishing and rhodium re-plating on white gold are maintenance services, quoted separately.
Choosing the band too? See how to match a wedding band to your engagement ring.
Before you send the form
- Price: custom engagement rings start at around $1,200. We confirm the details and the cost with you before anything is made. Because gold prices move every day, the price is set when you place and pay for your order.
- Timeline: approximately 4–6 weeks to make before it ships; an estimate, not a guarantee.
- After you submit: we contact you by call, text or email to talk through your idea and set up your free consultation. Sending the form doesn't commit you to anything.
- Approval first: nothing is made until you approve the render and the final specs.
- Payment: Pay over time with Affirm, Klarna or Afterpay: 0% APR plans for those who qualify, subject to approval. See financing. You can also ask us about layaway (layaway terms).
- Final sale: custom pieces are made to your exact specifications, so once production begins they can't be returned, exchanged, refunded or cancelled (Section 4).
START CUSTOMIZING
Please fill the form below in order to receive a quote for your custom piece.
Please note that custom engagement rings start at around $1,200.
HOW IT WORKS
Custom engagement ring FAQ
How much does a custom engagement ring cost?
Custom engagement rings start at around $1,200. The price depends on the center stone (type, shape, carat and quality), the gold karat and weight, and the setting. We confirm the details and the cost with you before anything is made. Because gold prices move every day, the price is set when you place and pay for your order. Our ring builder shows the price of every collection design.
Can I design my own engagement ring?
Yes. Start from a shape and setting you like, a photo of a ring you saw or a sketch. We draw it in CAD, show you a realistic render, and you approve the center stone, metal, size and any engraving before we make it. You can work with us in our Miami store or by phone, text or email.
How long does a custom engagement ring take?
Custom pieces take approximately 4–6 weeks to make before they ship. Times vary with the complexity of the piece and are estimates, not guarantees. The design and approval stage comes before that, so if you have a proposal date in mind, contact us early and tell us the date.
Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds have the same chemistry, hardness and optics as natural diamonds; the difference is that they are grown in a lab instead of mined. They score 10 on the Mohs hardness scale, like natural diamonds, and cost far less for the same size. Lab-grown diamonds are ethically sourced.
Should I choose a lab-grown diamond or moissanite?
Choose a lab-grown diamond if you want a real diamond; choose moissanite if you want the largest look for the lowest price. Moissanite rates 9.25 on the Mohs scale, so it is durable for daily wear, and it shows more rainbow-colored sparkle. Compare them in our stone guide.
Does my ring come with a certificate?
The rings in our engagement ring collection come with an IGI report for the lab-grown center stone. For a custom ring, we confirm the center stone, its grading and its report with you before production, so you know exactly what you are getting. Learn how the labs differ in IGI vs GIA for lab-grown diamonds.
Which gold karat is best for an engagement ring?
14K is a balance of color and durability: 58.3% gold, warm yellow and harder than 18K. 18K (75% gold) has the richest color but is softer and costs more per gram. 10K (41.7% gold) is the hardest and most affordable, with a lighter yellow. All three come in yellow, white or rose gold.
Can I return a custom engagement ring?
Rings we design or make to your request are custom pieces, so they are final sale once production begins. Rings from our engagement ring collection have a 30-day return (Section 3A) if they are unworn, unresized and unengraved. That's why we confirm every detail with you before production. Full terms: Return & Refund Policy.
What if I don't know her ring size?
Borrow a ring she wears on the same finger and measure it with our printable ring size guide, or bring it to your consultation and we measure it. Confirm the size before production, especially for eternity and full-pavé bands, which are remade rather than resized.
Can my ring be resized later?
Yes, most rings can be resized by our workshop, quoted separately for custom rings. Rings from our collection include one free resize within 60 days of delivery. Eternity and full-pavé bands are remade, not resized, so we confirm your size before production.
Is a custom engagement ring covered by a warranty?
Yes. Custom designs and diamond-set pieces are covered for one year against manufacturing defects, and repairs from normal wear are honored. Each case is assessed by our workshop upon inspection. Resizing, polishing and rhodium re-plating are maintenance services, quoted separately.
Do you offer layaway or financing on engagement rings?
Pay over time with Affirm, Klarna or Afterpay: 0% APR plans for those who qualify, subject to approval. See financing. You can also ask us about layaway. Under its published terms, it must be completed within 12 months, the remaining balance follows metal prices, and payments are not refunded in cash. Read the layaway terms.
Can I meet you in Miami?
Yes. Our store is at 1056 SW 67th Ave, Miami, FL 33144, open Monday to Friday 10 am–7 pm and Saturday 10 am–4 pm (ET). Call or text 321-521-4651 to set up your free consultation. Not in Miami? We work with clients by phone, text and email, and ship fully insured. See also our engagement rings in Miami page.
