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The Diamond Search
The Curated Edit
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Gold Bands

3mm 18K Comfort-Fit Half Round Band (Standard Weight)

SKU | AA-BAND-3MM-STD-18KY-4

Regular Price: $883.70

Sale Price: $883.70
Regular Price

Sale Sold Out

Unit price: ( per )

Metal | Yellow Gold

Ring Size | 4

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💎 About the Diamonds

What are lab-grown diamonds?

Lab-grown diamonds are real diamonds created in controlled environments using advanced technology. They share the same physical, chemical, and optical properties as mined diamonds.

Are lab-grown diamonds real diamonds?

Yes. They are not simulants—they are genuine diamonds, identical to mined diamonds in every measurable way.

Why choose lab-grown over mined diamonds?

Lab-grown diamonds allow you to prioritize what truly matters—cut, clarity, and overall presence—without the traditional retail markup.

🔍 Selection & Quality

How do you select your diamonds?

Every diamond is chosen for how it performs in real life—not just how it reads on paper. We prioritize light performance, balance, and overall presence so each stone feels exceptional.

Do all diamonds come with certification?

Every diamond that is sold loose is certified with the corresponding number engraved, and comes with a detailed grading report. Accent diamonds on fine jewelry are lab-grown and manufacturer graded.

Availability

All diamonds are subject to prior sale. Availability is confirmed at the time of order fulfillment. If a stone becomes unavailable, we'll notify you promptly and issue a full refund or help you find a comparable diamond.

🛠️ Our Process

Why do you sell diamonds before finished jewelry?

We believe the diamond is the foundation. Starting with the stone allows you to create something more intentional—built around quality, not compromise.

What if I don’t know where to start?

That’s exactly where we come in. We simplify the process so you can focus on selecting a diamond that already stands on its own.

📦 Ordering & Shipping

How long does shipping take?

Orders are processed within 2 business days. Once dispatched, all orders are shipped via fully insured express delivery with signature confirmation.

Most orders are delivered within approximately 4–5 business days from the time of purchase.

The flat rate cost is $20.00 for all orders.

What about for the Curated Edit?

In-hand diamonds typically ship within 1 business day via insured FedEx signature required. Most orders arrive within 2–3 business days of purchase, depending on order timing and destination.

🔁 Returns & Policies

What is your return policy?

We offer a 14–day return window on eligible purchases. Items must be returned in their original, unused condition with all accompanying documentation.

All returns are subject to inspection and verification to ensure the original item is returned.

Can I return a diamond after it’s been set?

No. Once a diamond has been set, mounted, or altered in any way, it is no longer eligible for return.

💳 Pricing & Value

Why are your prices lower than traditional retailers?

We remove the traditional retail structure and focus directly on the diamond—allowing for better quality at a more transparent price.

Am I sacrificing quality for price?

Not at all. Our model is designed to prioritize quality first—without the inflated markup.

💎 About the Diamonds

What are lab-grown diamonds?

Lab-grown diamonds are real diamonds created in controlled environments using advanced technology. They share the same physical, chemical, and optical properties as mined diamonds.

Are lab-grown diamonds real diamonds?

Yes. They are not simulants—they are genuine diamonds, identical to mined diamonds in every measurable way.

Why choose lab-grown over mined diamonds?

Lab-grown diamonds allow you to prioritize what truly matters—cut, clarity, and overall presence—without the traditional retail markup.

🔍 Selection & Quality

How do you select your diamonds?

Every diamond is chosen for how it performs in real life—not just how it reads on paper. We prioritize light performance, balance, and overall presence so each stone feels exceptional.

Do all diamonds come with certification?

Every diamond that is sold loose is certified with the corresponding number engraved, and comes with a detailed grading report. Accent diamonds on fine jewelry are lab-grown and manufacturer graded.

Availability

🛠️ Our Process

Why do you sell diamonds before finished jewelry?

We believe the diamond is the foundation. Starting with the stone allows you to create something more intentional—built around quality, not compromise.

What if I don’t know where to start?

That’s exactly where we come in. We simplify the process so you can focus on selecting a diamond that already stands on its own.

📦 Ordering & Shipping

How long does shipping take?

Orders are processed within 2 business days. Once dispatched, all orders are shipped via fully insured express delivery with signature confirmation.

Most orders are delivered within approximately 4–5 business days from the time of purchase.

The flat rate cost is $20.00 for all orders.

What about for the Curated Edit?

In-hand diamonds typically ship within 1 business day via insured FedEx signature required. Most orders arrive within 2–3 business days of purchase, depending on order timing and destination.

🔁 Returns & Policies

What is your return policy?

We offer a 14–day return window on eligible purchases. Items must be returned in their original, unused condition with all accompanying documentation.

All returns are subject to inspection and verification to ensure the original item is returned.

Can I return a diamond after it’s been set?

No. Once a diamond has been set, mounted, or altered in any way, it is no longer eligible for return.

💳 Pricing & Value

Why are your prices lower than traditional retailers?

We remove the traditional retail structure and focus directly on the diamond—allowing for better quality at a more transparent price.

Am I sacrificing quality for price?

Not at all. Our model is designed to prioritize quality first—without the inflated markup.

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Product Info

A timeless 3mm comfort-fit wedding band in solid 18K gold, available in yellow or white. This standard-weight version offers substantial heft and durability, with a gently rounded half-round profile and smooth comfort-fit interior.
- Metal: 18K Gold (Yellow or White)
- Width: 3mm
- Profile: Half Round, Comfort-Fit
- Weight: Standard Weight
- Finish: High Polish
- Made in the USA
Select sizes are made to order, with additional availability upon request.
Product Type:

Wedding Band
Brand:

Adamas Aion

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Lookbook
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FAQ
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The Science of Diamonds
The Diamond Search
The Curated Edit
Fine Jewelry
Gold Bands

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3mm 18K Comfort-Fit Half Round Band (Standard Weight)

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3mm 18K Comfort-Fit Half Round Band (Standard Weight)

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