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Round Lab-Grown Diamond Three-Stone Engagement Ring

$1,609.0014K Yellow Gold / 0.50 ct Lab-Grown Diamond
One lab-grown diamond in the middle, one round to each side, and a band that tapers so the three stones sit in a single unbroken line of light across the finger.
Read the full description ↓
Metal14K Yellow Gold
Center Carat Weight0.50 ct Lab-Grown Diamond
In stock · ships in 2–3 business days
  • Free insured shipping on every order
  • Free 2-day express over $250
  • 30-day returns
  • Free lifetime warranty
Details

One lab-grown diamond in the middle, one round to each side, and a band that tapers so the three stones sit in a single unbroken line of light across the finger.

Three-stone rings carry a story people already know without being told, and the geometry does real work: the side rounds widen the ring's footprint, so the whole thing looks larger on the hand than its center weight alone. It is a design that photographs well and wears flat under a band.

Gifting this one is straightforward. The three-stone silhouette is recognizable across a table, which matters if you are proposing somewhere with an audience. Sized before it leaves the bench, and we will ship to you or direct to her.

The trade-off worth naming: side stones mean side prongs, and prongs on the shoulders sit closer to the world than a solitaire's do. We check and re-tip them under the lifetime warranty, and we ask for six-month prong checks rather than pretending that is unnecessary.

Pick the metal and the center below. Every ring is set and sized to order.

Stone mix, stated plainly: the center is a lab-grown diamond. The accents are natural diamonds, two round side stones, 0.54 ct tw. This ring is not entirely lab-grown, and we would rather you knew that here than found it out later.

Center options, each set to order:

  • 0.50 ct lab-grown round diamond, D color, VVS1 clarity, Ideal cut, IGI-graded (report LG776670022), 5.18 mm
  • 0.75 ct lab-grown round diamond, D color, VVS1 clarity, Ideal cut, IGI-graded (report LG777616554), 5.82 mm
  • 1.00 ct lab-grown round diamond, D color, VVS1 clarity, Ideal cut, IGI-graded (report LG772644326), 6.37 mm
  • 1.25 ct lab-grown round diamond, D color, VVS2 clarity, Ideal cut, IGI-graded (report LG625407469), 6.84 mm

Prices shown are the complete ring: mounting, center and any accents, in the metal you choose. Want a different center? Contact our concierge and we will hand-select one and quote the whole ring honestly.

  • Free fully insured shipping
  • 30-day returns
  • Free first-year resizing
  • Lifetime warranty on the setting
  • Set and sized at our bench
Specifications
StoneLab-Grown Diamond
ShapeRound
Center Carat0.50 - 1.25 ct
Center Carat Options0.50 ct, 0.75 ct, 1.00 ct, 1.25 ct
ColorD
ClarityVVS1/VVS2
QualityD color, VVS1/VVS2 clarity, Ideal cut, IGI-graded
Measurements0.50 ct = 5.18 mm, 0.75 ct = 5.82 mm, 1.00 ct = 6.37 mm, 1.25 ct = 6.84 mm
Accent Diamond Weight0.54 ct tw
Accent StonesNatural diamond, two round side stones, 0.54 ct tw, matched and eye-clean
SettingThree-Stone
MetalPlatinum, 14K White Gold, 14K Yellow Gold, 14K Rose Gold
CertificationIGI-graded lab-grown center; report supplied with every ring
Selection14K Yellow Gold / 0.50 ct Lab-Grown Diamond
Shipping & Returns

Every order ships via complimentary insured UPS Express, signature required on delivery. Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10. Returns accepted within 30 days, and every piece carries our free lifetime warranty.

Answers, before you ask

Your Questions

Is the center diamond lab-grown?

Yes. Every center in this ring is a lab-grown diamond, grown in a known facility and graded by IGI, with the report supplied. It is chemically and optically diamond. We call it lab-grown everywhere, including on your invoice, because that is what it is.

Are the accent diamonds lab-grown too?

No, and this is the part most sites leave out. The center is lab-grown; the two round side stones are natural diamonds from our setter's stock, 0.54 ct tw, matched and eye-clean. Mixed like this is normal in the trade. Saying so is not.

Is the price the whole ring?

Yes. The price you see is the mounting, the center and any accents, finished and sized. There is no setting fee waiting at checkout.

What ring size, and can it be resized later?

You tell us the size after you order and we finish it to that size at no extra cost. First-year resizing is free. A plain shank sizes easily in both directions.

What can go wrong, honestly?

Prongs wear. We ask for a prong check every six months and we re-tip them under the lifetime warranty for as long as you own the ring. Pave and halo melee can also be knocked loose over a lifetime; when that happens we re-set it under the same warranty.

Does the white gold change color?

White gold is rhodium-plated, and plating is a wear item. It gradually warms over a few years and wants re-plating. Platinum does not do this. If that matters to you, choose platinum.

Can you ship it to her instead of me?

Yes. Tell us the address and we will ship it there, fully insured, in our packaging.

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