Choosing a Band

We want your ring to last forever. Which is why we follow strict tolerances that keep slim bands narrow, but not wimpy, and we carefully hand-finish all bands to a depth of at least 1.6mm. (See this design’s width specs below in Description & Details.)

Customize Your Band

Don’t see the perfect band? We can customize any design so it’s perfect for you. Just reach out to get started.

Pro Tip

Keep your band safe and looking its best: remove before working out, don’t sleep in your rings, and take advantage of Plum’s free annual maintenance that’s included with purchase.

Style

There’s no right or wrong answer here. We only offer classic options, and you can’t go wrong. If you don’t see exactly what you want, reach out to customize.

Band Design

We want your wedding ring to be treasured forever, which is why our bands are crafted with the best alloys and why we follow strict tolerances for beauty and durability. (See this design’s diamond and width specs below in Description & Details.)

Pro Tip

Keep your band safe and looking its best: remove before working out, don’t sleep in your rings, and take advantage of Plum’s free annual maintenance that’s included with purchase.

Showing Off Your Diamond

Our centers are designed for security and aesthetics, to hold your diamond safely in place while letting it sparkle like crazy.

East-West Orientation

(Available with elongated diamond shapes.) A great way to personalize your ring for a unique, modern look is to modify your center diamond so it’s set east-to-west.

Pro Tip

When choosing your metal, opt for a white center setting to keep your diamond bright. Platinum is a great choice, or you can select a two-tone setting. This is where the band is yellow or rose gold and the center is platinum. Choose 18k Yellow & Platinum or 14k Rose & Platinum when selecting your Metal Type for a two-tone setting.

The Center Setting

We design each setting from scratch, to precisely fit your center diamond. Plum center settings are crafted for security and sparkle, to hold your diamond safely in place while letting it shine like crazy.

Securing Your Diamond

Our claw prongs are the opposite of chunky or square and hold your diamond with a graceful point, while Plum bezels are slim yet secure.

Cathedral or No Cathedral

Cathedral settings feature graceful arches that rise from the band, creating a flowing, integrated look that connects beautifully with the center stone.

In contrast, non-cathedral settings allow the center stone to sit more prominently above the band, almost appearing to float—perfect for showcasing your diamond as the star of the show.

A Flush Fit

Many of our settings are thoughtfully designed so that a straight wedding band stacks closely with your engagement ring.

However, low basket and low bezel settings are exceptions—when your diamond sits lower on your finger, a small gap between the rings is natural.

If you’re looking for the perfect wedding band to pair with a low-profile ring, we’re happy to help! Options like contour bands, open bands, or even a custom design can create a beautiful fit. (That said, we don’t mind a little gap—it adds character!)

Your Center Diamond Shape

We couldn’t pick a favorite shape any more than we could pick a favorite child! There’s no right or wrong when choosing the one that’s perfect for you, and if you’d like help, we’re here to assist.

Here’s a handy graphic with Plum’s lineup of diamond shapes—you can see that certain shapes look larger than others for their carat weight.

Choosing a Halo Shape

This comes down to whether you want to gaze at your hand and see a round halo or a slightly squared off halo shape. If you like the idea of having some angles, a Soft Square halo is a great choice because you still get the maximum brilliance of a timeless round diamond, with a little added geometric interest.

Precious Metals

We use recycled gold and responsibly-sourced platinum. Our casters have been turning out the best quality metal alloys for decades and are certified by the Responsible Jewellery Council for sustainability. Plum rings come in high karat gold, platinum, and gold with platinum center prongs (“two tone”).

Gold

We craft yellow and white gold rings in 18k because it has a higher gold content than 14k. If you’d prefer 14k gold instead, we’re happy to accommodate you.

Rose gold rings are crafted in 14k; our gold alloy is a beautiful, rich rose color and it is alloyed to be more durable than alternatives.

Platinum vs. White Gold

Platinum is a pure metal and very rare; it’s hypoallergenic and naturally white, so it does not require plating. A great choice if you’re looking for a low maintenance metal.

Pro Tip

When selecting a rose or yellow gold engagement ring, keep in mind that diamonds reflect the colors around them. To amplify the whiteness and brightness of your diamond — and for an elevated look — consider choosing platinum prongs.

The Side View

Securing Your Diamond

Our claw prongs are the opposite of chunky or square and hold your diamond with a graceful point, while Plum bezels are slim yet secure.

Cathedral or No Cathedral

Cathedral settings feature graceful arches that rise from the band, creating a flowing, integrated look that connects beautifully with the center stone.

In contrast, non-cathedral settings allow the center stone to sit more prominently above the band, almost appearing to float—perfect for showcasing your diamond as the star of the show.

A Flush Fit

Many Plum settings are thoughtfully designed so that a straight wedding band stacks closely with your engagement ring.

However, low basket and low bezel settings are exceptions—when your diamond sits lower on your finger, a small gap between the rings is natural.

Choosing Your Side Shape

All are classic choices, and you can’t go wrong. All of our Three Stone customizations were carefully chosen to be universally flattering with your lab diamond center.

Side Setting Size

This comes down to personal preference. Some like smaller diamonds on the side to help the center look larger by contrast, while other people prefer a look with larger diamonds and more coverage across the finger.

All of our Three Stone customizations were carefully chosen to be universally flattering with a round diamond center.

Approximate carat weights:

Round: (Small) 2 x 4mm. .50ctw. (Large) 2 x 5mm. 1.00cttw.

Pear: (Small) 2 x 4mm. .25ctw. (Large) 2 x 5mm. .50ctw.

Tapered Baguettes: (Small) 2 x 4.5mm. .24ctw. (Large) 2 x 5mm. .50ctw.

Getting Ring Size Right

Not 100% certain? Place your order and choose “SEND ME A FREE SIZER” when prompted to enter your ring size. We’ll reserve your diamond and put your free sizer in the mail. We won’t start your order until you’re able to confirm the finger size.

If you receive your sizer and need help accurately assessing your size, we’re more than happy to assist over phone, with video, text—whatever is most convenient for you. The right-sized ring will be snug but not impossible to remove, and we do offer half and quarter sizes.

If you need to make changes to your Plum ring down the road, we’ve got you covered with our free lifetime resizing. Read more about Plum’s free sizing.

Personalization & Engraving

Engraving

Choose engraving for a personal touch—or secret message! Our engraving is in block letters so your sentiment is easy-to-read, and we can accommodate up to 15 characters (including spaces).

3/4 Diamond Band

(Available on diamond bands) Choose this modification for additional diamonds on your band that wrap three quarters of the way around your finger. Standard diamond bands wrap halfway around your finger.

Hidden Halo

Most rings can accommodate a sparkling hidden halo, a special extra touch that you’ll only see from the side of your center diamond.

East-West Orientation

(Available with elongated diamond shapes.) A great way to personalize your ring for a unique, modern look is to modify your center diamond so it’s set east-to-west.

Band Width

Our standard, sparkling diamond bands measure 1.8mm, 2.5mm, and 3mm. If one of these doesn’t feel quite right, we’re happy to customize your band to your favorite width. Just ask—customization at Plum is simple.

Length

Choose your length, and if you need it a little longer or shorter, just let us know and we can customize your order.

Carat Weight

Total carat weight is the sum of both diamond weights added together. This is how stud earrings are usually described.

If you’re looking for a larger or smaller total carat weights, please contact us for a quote.

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Antique Cut Oval Three Stone

Antique Cut Oval Three Stone

Specialty Cut Oval Diamond Ring

Antique Cut Oval Three Stone

Add Color: Select

Pink Diamond Hidden Halo
Pink Diamond Band
Hidden Birthstones
- Garnet - Jan
- Amethyst - Feb
- Aquamarine - Mar
- Diamond - Apr
- Emerald - May
- Alexandrite - Jun
- Ruby - Jul
- Peridot - Aug
- Sapphire - Sep
- Tourmaline - Oct
- Citrine - Nov
- Topaz - Dec

Engraving & Personalization:

select your ring size:

order a try-on kit

$3,190

ADD TO BAG

Want it Customized? Email Now

Free resizing and polishing for life.

Responsibly made with lab grown diamonds.

Made to order, ships in 15 business days.

Description & Details

A Plum original, the Antique Cut Oval Three Stone lab diamond ring is accented with the most special details: delicate milgrain beading, double prongs, and of course, 3 unique step-cut lab grown diamonds weighing approximately 1.70ct total. This exclusive ring takes the classic three stone design to the next level; we searched high and low for fresh diamond designs and these are the coolest cuts out there.

Hard to find, and in limited supply, the Antique Oval Step Cut represents Family and Individuality.

More about this lab grown diamond ring, which is lovely as an engagement ring or on any finger:

This Plum band is crafted just for you in 18K solid gold, 14k rose gold, or platinum.

Measures approximately 1.8mm wide at the back.

Hand-set with approximately .1.70ctw of sparkling lab grown diamonds.

The lab-grown diamonds are graded in the E-F color and VS+ clarity ranges.

Don't see exactly what you're looking for? Contact us for adjustments! We can customize any ring. Send an email.

Free Shipping & Returns

Made-to-order because each specialty cut lab diamond is unique; your jewelry will start with a one-of-a-kind CAD created just for you and be shipped after. Rings take about 17 business days to craft from start to finish, and we will always contact you before shipping to coordinate your insured, overnight FedEx delivery. Your ring will arrive in an unmarked brown box.

In a rush? We do our best to meet special dates, and we can often expedite your order. Rush charges may apply. Please contact us to arrange.

Resizing & Care

We offer a free resize within one year of your purchase and free sizing every year after that. We even cover shipping! If you're not sure what size you need, you can still place your order and we'll send you a sizer. Learn more here.

Made in our own facility that’s certified for ethics and sustainability.

Recent Client Rings

Round Low Basket with Wide Band

Oval Sleek Cathedral

Radiant Cut Cathedral Bezel

Oval Bypass Ring

Marquise Cut Tall V

Modified Mini Cathedral: Double Prongs

Customized Split Shank

Pink Lab Diamond Ring

East-West Tall V

Art Deco 5 Stone Ring

Skinny Cathedral

Low Basket with Slim Band

Custom Signet Ring

Low Basket Setting with Open Band

Tall V Setting: Stacks Flush with Bands

2 Carats in All Shapes

Packaged & Shipped with Care

Each piece is carefully secured in fine jewelry packaging designed for perfect presentation. Rings and fine jewelry are shipped via insured, overnight FedEx, in a discreet brown box. We'll personally coordinate delivery with you before shipping.

Easily Customize
Your Jewelry

Found a style you love, but want to change it and make it your own? Or, do you want to create a piece from scratch? Your dream ring can be a reality in as little as 4 weeks. Our roots are in custom jewelry, and we'd love to help create your perfect custom design.

see how

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Plum is Different. Here’s Why.

Plum Diamonds icon of two plum interlinked rings

OUR RINGS ARE CRAFTED FOR FOREVER

We’re our own manufacturer and craft each ring from start to finish–free lifetime care included.

Plum Diamonds icon of two purple interlinked rings

WE’RE OBSESSED WITH EXCEPTIONAL SERVICE

Founded and led by women, we’re here to help and won’t steer you wrong.

Plum Diamonds icon of two mauve interlinked rings

ETHICS & SUSTAINABILITY ARE NON-NEGOTIABLE

Plum rings are made in our own certified-responsible facilities and only with lab grown diamonds.

Choosing a Band

Customize Your Band

Don’t see the perfect band? We can customize any design so it’s perfect for you. Just reach out to get started.

Pro Tip

Keep your band safe and looking its best: remove before working out, don’t sleep in your rings, and take advantage of Plum’s free annual maintenance that’s included with purchase.

Style

There’s no right or wrong answer here. We only offer classic options, and you can’t go wrong. If you don’t see exactly what you want, reach out to customize.

Band Design

Pro Tip

Keep your band safe and looking its best: remove before working out, don’t sleep in your rings, and take advantage of Plum’s free annual maintenance that’s included with purchase.

Showing Off Your Diamond

Our centers are designed for security and aesthetics, to hold your diamond safely in place while letting it sparkle like crazy.

East-West Orientation

(Available with elongated diamond shapes.) A great way to personalize your ring for a unique, modern look is to modify your center diamond so it’s set east-to-west.

Pro Tip

The Center Setting

Securing Your Diamond

Our claw prongs are the opposite of chunky or square and hold your diamond with a graceful point, while Plum bezels are slim yet secure.

Cathedral or No Cathedral

Cathedral settings feature graceful arches that rise from the band, creating a flowing, integrated look that connects beautifully with the center stone.

In contrast, non-cathedral settings allow the center stone to sit more prominently above the band, almost appearing to float—perfect for showcasing your diamond as the star of the show.

A Flush Fit

Many of our settings are thoughtfully designed so that a straight wedding band stacks closely with your engagement ring.

However, low basket and low bezel settings are exceptions—when your diamond sits lower on your finger, a small gap between the rings is natural.

Your Center Diamond Shape

Here’s a handy graphic with Plum’s lineup of diamond shapes—you can see that certain shapes look larger than others for their carat weight.

Choosing a Halo Shape

Precious Metals

Gold

We craft yellow and white gold rings in 18k because it has a higher gold content than 14k. If you’d prefer 14k gold instead, we’re happy to accommodate you.

Rose gold rings are crafted in 14k; our gold alloy is a beautiful, rich rose color and it is alloyed to be more durable than alternatives.

Platinum vs. White Gold

Platinum is a pure metal and very rare; it’s hypoallergenic and naturally white, so it does not require plating. A great choice if you’re looking for a low maintenance metal.

Pro Tip

The Side View

Securing Your Diamond

Our claw prongs are the opposite of chunky or square and hold your diamond with a graceful point, while Plum bezels are slim yet secure.

Cathedral or No Cathedral

Cathedral settings feature graceful arches that rise from the band, creating a flowing, integrated look that connects beautifully with the center stone.

In contrast, non-cathedral settings allow the center stone to sit more prominently above the band, almost appearing to float—perfect for showcasing your diamond as the star of the show.

A Flush Fit

Many Plum settings are thoughtfully designed so that a straight wedding band stacks closely with your engagement ring.

However, low basket and low bezel settings are exceptions—when your diamond sits lower on your finger, a small gap between the rings is natural.

Choosing Your Side Shape

All are classic choices, and you can’t go wrong. All of our Three Stone customizations were carefully chosen to be universally flattering with your lab diamond center.

Side Setting Size

All of our Three Stone customizations were carefully chosen to be universally flattering with a round diamond center.

Approximate carat weights:

Round: (Small) 2 x 4mm. .50ctw. (Large) 2 x 5mm. 1.00cttw.

Pear: (Small) 2 x 4mm. .25ctw. (Large) 2 x 5mm. .50ctw.

Tapered Baguettes: (Small) 2 x 4.5mm. .24ctw. (Large) 2 x 5mm. .50ctw.

Getting Ring Size Right

If you need to make changes to your Plum ring down the road, we’ve got you covered with our free lifetime resizing. Read more about Plum’s free sizing.

Personalization & Engraving

Engraving

Choose engraving for a personal touch—or secret message! Our engraving is in block letters so your sentiment is easy-to-read, and we can accommodate up to 15 characters (including spaces).

3/4 Diamond Band

Hidden Halo

Most rings can accommodate a sparkling hidden halo, a special extra touch that you’ll only see from the side of your center diamond.

East-West Orientation

(Available with elongated diamond shapes.) A great way to personalize your ring for a unique, modern look is to modify your center diamond so it’s set east-to-west.

Band Width

Length

Choose your length, and if you need it a little longer or shorter, just let us know and we can customize your order.

Carat Weight

Total carat weight is the sum of both diamond weights added together. This is how stud earrings are usually described.

If you’re looking for a larger or smaller total carat weights, please contact us for a quote.

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Customize Your Band

Pro Tip

Pro Tip

East-West Orientation

Pro Tip

Securing Your Diamond

Cathedral or No Cathedral

A Flush Fit

Gold

Platinum vs. White Gold

Pro Tip

Securing Your Diamond

Cathedral or No Cathedral

A Flush Fit

Engraving

3/4 Diamond Band

Hidden Halo

East-West Orientation

Antique Cut Oval Three Stone

Specialty Cut Oval Diamond Ring

Antique Cut Oval Three Stone

Description & Details

Free Shipping & Returns

Resizing & Care

Recent Client Rings

Packaged & Shipped with Care

Easily Customize Your Jewelry

Plum is Different. Here’s Why.

OUR RINGS ARE CRAFTED FOR FOREVER

WE’RE OBSESSED WITH EXCEPTIONAL SERVICE

ETHICS & SUSTAINABILITY ARE NON-NEGOTIABLE

Customize Your Band

Pro Tip

Pro Tip

East-West Orientation

Easily Customize
Your Jewelry