This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.
Vintage & Antique Engagement Rings Platt Boutique Jewelry Los Angeles

Unique Engagement Rings

Our Unique Engagement Rings collection is curated for those seeking something truly distinctive — rings that break from convention while honoring exceptional craftsmanship, history, and individuality. At Platt Boutique Jewelry, we believe an engagement ring should feel as personal as the love it represents, which is why this collection highlights rare designs, unexpected gemstones, and one-of-a-kind antique and vintage pieces.

Filters

Availability

Price

 
 
 
$
-
$

Period

Category

Ring Size

More options

Primary Lab Report Exists

Diamond Clarity Grade

Metal & Finish

Product type

Primary Stone Cut

View 53 items
Victorian 1.25 Ctw. Old Mine Cut Diamond Cluster Ring
 
Victorian 1.25 Ctw. Old Mine Cut Diamond Cluster Ring

Victorian 1.25 Ctw. Old Mine Cut Diamond Cluster Ring

Sold Out
Victorian 4.39 Ct. Oval Sapphire & Diamond Cluster Engagement Ring
 
Victorian 4.39 Ct. Oval Sapphire & Diamond Cluster Engagement Ring

Victorian 4.39 Ct. Oval Sapphire & Diamond Cluster Engagement Ring

Sold Out
1.53 Ct. Step Cut Diamond ‘Robyn Ring’ from Bespoke by Platt
 
1.53 Ct. Step Cut Diamond ‘Robyn Ring’ from Bespoke by Platt

1.53 Ct. Step Cut Diamond ‘Robyn Ring’ from Bespoke by Platt

Sold Out
 

1.51 Ct. Rose Cut Diamond & Black Enamel Engagement Ring from Bespoke by Platt

$13,800.00 USD
Edwardian 1.52 Ct. Sapphire & Diamond Ring
 
Edwardian 1.52 Ct. Sapphire & Diamond Ring

Edwardian 1.52 Ct. Sapphire & Diamond Ring

$5,700.00 USD
Victorian 0.61 Ct. Old European Cut Diamond Tiara Ring
 
Victorian 0.61 Ct. Old European Cut Diamond Tiara Ring

Victorian 0.61 Ct. Old European Cut Diamond Tiara Ring

$4,900.00 USD
Art Deco 0.80 Ct. Old European Cut Diamond Ornate Domed Ring
 
Art Deco 0.80 Ct. Old European Cut Diamond Ornate Domed Ring

Art Deco 0.80 Ct. Old European Cut Diamond Ornate Domed Ring

$6,300.00 USD
Art Deco 1.25 Ct. Sapphire & Diamond Round Dinner Ring
 
Art Deco 1.25 Ct. Sapphire & Diamond Round Dinner Ring

Art Deco 1.25 Ct. Sapphire & Diamond Round Dinner Ring

$5,500.00 USD
Edwardian 0.91 Ct. & 0.65 Ct. Old Mine Cut Diamond Toi et Moi Ring
 
Edwardian 0.91 Ct. & 0.65 Ct. Old Mine Cut Diamond Toi et Moi Ring

Edwardian 0.91 Ct. & 0.65 Ct. Old Mine Cut Diamond Toi et Moi Ring

$7,200.00 USD
Art Deco 2.25 Ct. Color Change Sapphire & Diamond Cluster Ring
 
Art Deco 2.25 Ct. Color Change Sapphire & Diamond Cluster Ring

Art Deco 2.25 Ct. Color Change Sapphire & Diamond Cluster Ring

$7,500.00 USD
Victorian 1.60 Ct. Lozenge Cut Diamond Solitaire Engagement Ring
 
Victorian 1.60 Ct. Lozenge Cut Diamond Solitaire Engagement Ring

Victorian 1.60 Ct. Lozenge Cut Diamond Solitaire Engagement Ring

Sold Out
Art Deco 1.38 Ct. Old European Cut Diamond 3-Stone Ring
 
Art Deco 1.38 Ct. Old European Cut Diamond 3-Stone Ring

Art Deco 1.38 Ct. Old European Cut Diamond 3-Stone Ring

$13,300.00 USD
Victorian 0.77 Ct. Old Mine Cut Diamond Solitaire Engagement Ring
 
Victorian 0.77 Ct. Old Mine Cut Diamond Solitaire Engagement Ring

Victorian 0.77 Ct. Old Mine Cut Diamond Solitaire Engagement Ring

Sold Out
Vintage Art Deco 0.70 Ctw. Old European Cut Diamond Toi et Moi Engagement Ring
 
Vintage Art Deco 0.70 Ctw. Old European Cut Diamond Toi et Moi Engagement Ring

Art Deco 0.70 Ctw. Old European Cut Diamond Toi et Moi Engagement Ring

$1,800.00 USD
Art Deco 0.50 Ctw. Old European Cut Diamond Navette Ring
 
Art Deco 0.50 Ctw. Old European Cut Diamond Navette Ring

Art Deco 0.50 Ctw. Old European Cut Diamond Navette Ring

$2,400.00 USD
3.53 Ct Marquise Cut Orangish Brown Diamond Solitaire Ring from Bespoke by Platt
 
3.53 Ct Marquise Cut Orangish Brown Diamond Solitaire Ring from Bespoke by Platt

3.53 Ct Marquise Cut Orangish Brown Diamond Solitaire Ring from Bespoke by Platt

$28,000.00 USD
2.62 Ct. Old Mine Cut Diamond & Onyx Engagement Ring from Bespoke by Platt
 
2.62 Ct. Old Mine Cut Diamond & Onyx Engagement Ring from Bespoke by Platt

2.62 Ct. Old Mine Cut Diamond & Onyx Engagement Ring from Bespoke by Platt

$18,400.00 USD
Victorian 0.91 Ct. Old European Cut Diamond Swirling Domed Gypsy Ring
 
Victorian 0.91 Ct. Old European Cut Diamond Swirling Domed Gypsy Ring

Victorian 0.91 Ct. Old European Cut Diamond Swirling Domed Gypsy Ring

$5,500.00 USD
Victorian 0.96 Ct. Old European Cut Diamond Ornate 3-Stone Ring
 
Victorian 0.96 Ct. Old European Cut Diamond Ornate 3-Stone Ring

Victorian 0.96 Ct. Old European Cut Diamond Ornate 3-Stone Ring

$7,300.00 USD
Victorian 0.83 Ct. Old European Cut Diamond Ornate 3-Stone Ring
 
Victorian 0.83 Ct. Old European Cut Diamond Ornate 3-Stone Ring

Victorian 0.83 Ct. Old European Cut Diamond Ornate 3-Stone Ring

$7,500.00 USD
Art Deco 1.24 Ctw. Transitional Cut Diamond & Sapphire 2-Stone Ring
 
Art Deco 1.24 Ctw. Transitional Cut Diamond & Sapphire 2-Stone Ring

Art Deco 1.24 Ctw. Transitional Cut Diamond & Sapphire 2-Stone Ring

$3,800.00 USD
 

Art Deco 1.80 Ct. Palin Sapphire & Diamond Ring

$6,800.00 USD
Gold ring with a large brown gemstone and smaller clear stones on a white background
 
Gold ring with a large brown gemstone and smaller clear stones on a white background

5.21 Ct. Fancy Yellowish Brown Emerald Cut Diamond Ring from Bespoke by Platt

$57,500.00 USD
Diamond ring with three large gemstones on a white background
 
Diamond ring with a white background

Art Deco 0.98 Ct. Old European Cut Diamond 3-Stone Engagement Ring

$13,600.00 USD
 

Art Nouveau 1.12 Ct. Old European Cut Diamond & Pearl Blue Enamel Ring

$7,900.00 USD
 

2.80 Ct. Old Mine Cut Diamond Solitaire Ring from Bespoke by Platt

$16,800.00 USD
 

1.31 Ct. Old European Cut Diamond 3-Stone Ring from Bespoke by Platt

Sold Out
 

Mid-Century 1.00 Ctw. Old European Cut Diamond Cluster Toi et Moi Ring

$5,800.00 USD
 

1.81 Ct. Triangular Step Cut Diamond Solitaire from Bespoke by Platt

Sold Out
 

1.35 Ct. Old European Cut Diamond 3-Stone Ring from Bespoke by Platt

Sold Out
 

Mid-Century 1.00 Ctw. Rose Cut Diamond 3-Stone Ring

$2,900.00 USD
 

2.17 Ct. Radiant Cut Fancy Intense Yellow Diamond Engagement Ring

$21,000.00 USD
 

Art Deco 1.10 Ct. Emerald & Diamond Square Ring

$5,400.00 USD
 

Mid-Century 3.41 Ct. Sapphire & Diamond Ring

$7,200.00 USD
 

Mid-Century 5.92 Ct. Yellow Sapphire & Diamond Ring

$5,800.00 USD
 

Art Deco 1.79 Ctw. Old European Cut Diamond Navette Dinner Ring

$6,500.00 USD

Can we store cookies?

Broadcast uses cookies to improve your browsing experience.

Cart

No more products available for purchase

Your Cart is Empty

NEW ARRIVALS
ENGAGEMENT RINGS & BRIDAL
COLLECTIONS
JEWELRY
BESPOKE BY PLATT
PLATT FAMILY
PRESS & MEDIA
CONTACT