Three-stone half-moon engagement ring in 14K gold, diamond center, front view
Three-stone half-moon engagement ring in 14K gold, diamond center, three-quarter angle
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
Three-stone half-moon engagement ring in 14K gold, diamond center, on hand
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
Three-stone half-moon engagement ring in 14K gold, diamond center, overhead
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 6 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 6 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 6 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 6 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 7 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 7 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 7 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 7 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 8 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 8 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 8 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 8 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 9 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 9 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 9 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 9 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 10 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 10 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 10 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 10 mm Cushion Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 7x5 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 7x5 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 7x5 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 7x5 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 8x6 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 8x6 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 8x6 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 8x6 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 9x7 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 9x7 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 9x7 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 9x7 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 10x8 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 10x8 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 10x8 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 10x8 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 11x9 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 11x9 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 11x9 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 11x9 mm Emerald Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 8x6 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 8x6 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 8x6 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 8x6 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 10x8 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 10x8 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 10x8 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 10x8 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 11x9 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 11x9 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 11x9 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 11x9 mm Oval Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K Rose 6.5 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 6.5 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K White 6.5 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 6.5 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 8 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 8 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 8 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 8 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 9.4 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 9.4 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Yellow & White 9.4 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K White 10 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K Rose 9.4 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 10 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Yellow & White 10 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K White 11 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K Rose 10 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 11 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 11 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 11 mm Round Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 5.5 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 5.5 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 5.5 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 5.5 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 7 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 7 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 7 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 7 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 8 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 8 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 8 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 8 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 9 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 9 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 9 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 9 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, in packaging
14K White 10 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, front view
14K Yellow 10 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, side profile
14K Rose 10 mm Square Engagement Ring Mounting
Three-stone half-moon engagement ring in 14K gold, diamond center, close-up of half-moon stones
14K Yellow & White 10 mm Square Engagement Ring Mounting

Three-Stone Halfmoon Engagement Ring

$1,655.00
Metal: 14K white gold
Details

Three-stone half-moon engagement ring setting with 1/2 CT half-moon diamond side stones in 14K gold.

  • Side stones: 1/2 CT half-moon lab diamonds (F, VS)
  • Metal: 14K gold
  • Handmade in the US
View details

Gift-Ready Packaging

Each piece arrives ready to give. No extra wrapping, no last-minute errands, all eco-friendly.

What's Included:

  • Signature jewelry box
  • Soft travel pouch for safekeeping
  • Gift bag + coordinating tissue
  • Blank notecard for your message
  • Polishing cloth for everyday care
Shipping & Returns
Quality Guarantee

1-year warranty and lifetime repair service.
(because we're that certain our jewelry's got staying power.)
100% Hand-made in the US

We handcraft each and every element of our pieces in the United States of America.
Responsibly Sourced & Manufactured

We are committed to sustainably sourcing our precious metals + stones.

METALS

Every piece is handcrafted with 100% recycled 14-18ct gold and solid sterling silver, reducing CO2 emissions by over 60%

GEMS

Our gemstones are sourced from all over the world by erin gallagher personally. Our suppliers are certified by the Responsible Jewelry Council and work to stringent social, ethical and environmental standards.

DIAMONDS

Each diamond is assessed for cut, clarity, color and carat and is hand set. Our diamonds are conflict-free and adhere to the
Kimberley Process and the World Diamond Council's System of Warranties.
Carbon-neutral shipping on all orders
159kg
shipping emissions removed
That's like...
406
miles driven by an average gasoline-powered car
We fund innovations in...
Direct Air Capture
Bio Oil
Mineralization

Three-Stone Half Moon Engagement Ring Setting

A setting with architectural elegance. This three-stone engagement ring features two perfectly matched half-moon diamond side stones (1/2 CT total) that nestle flush against the center stone, creating a seamless, geometric frame. The half-moon shape is one of the most sophisticated side stone cuts available, producing clean lines and a modern, Art Deco-inspired quality.

Select your center stone shape and type to complete the ring. Available with lab-created diamonds (F, VS) in 14K gold. Handmade in the US with recycled metals.

Why You'll Love It

  • Half-moon side stones create a seamless, architectural frame around the center stone.
  • 1/2 CT of perfectly matched lab-created diamonds (F, VS).
  • A sophisticated, Art Deco-inspired alternative to traditional three-stone settings.
  • Handmade in the US with 14K recycled gold.

Product Details

  • Side stones: 1/2 CT half-moon lab diamonds (F, VS)
  • Metal: 14K gold
  • Center stone: Select separately
  • Handmade in the US

Frequently Asked Questions

What are half-moon diamonds?

Half-moon (or demi-lune) diamonds are cut in a semicircular shape designed to sit flush against a center stone, creating a seamless, geometric frame.

Does this come with a center stone?

No. This is the ring setting. Select your center stone to complete the ring.

How long will it take to receive my order?

Each piece is custom made for you. Please allow 10 business days for production unless the listing notes the item is already in stock.

Explore the Diamond Jewelry Collection >
198