Round Diamond


Only in Store 15% Off on Wedding Rings this June Only in Store

Use coupon code WELCOME10 for 10% off your first order.

Cart 0

Congratulations! Your order qualifies for free shipping You are $100 away from free shipping.
Sorry, looks like we don't have enough of this product.

Pair with
Is this a gift?
Subtotal Free
Shipping, taxes, and discount codes are calculated at checkout

Your Cart is Empty

About Us
Natural Diamonds
Engagement Rings
Wedding Rings
Jewelry Services
Custom Jewelry
Pittsburgh Showroom
Guides
Book My Free Consultation

1.5 Carat Diamond

A 1.5 Carat Diamond provides a luxurious and impressive presence.

It offers more size and sparkle, making it perfect for those who want to make a statement with their jewelry.

Ideal for engagement rings and special occasions, a 1.5 carat diamond exudes opulence and elegance.

Filters

Shape
More options
Weight
Price
 
 
 
$
-
$
Clarity
Color
More options
Cut Grade
Collection
Ideal Cut Certification
Product type
Jewelry material
View 866 items
1.5 Carat Natural Diamond - HEART - 1.7 - I - SI2 - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - HEART - 1.7 - I - SI2

$6,397.44
1.5 Carat Natural Diamond - HEART - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - HEART

$6,378.40
Slide image
 

1.5 Carat Emerald - Natural Diamond - 1.5 - I - VS2 - VG - EX - EX

$6,350.40
Slide image
 

1.5 Carat Emerald - Natural Diamond - 1.5 - I - VS2 - VG - VG - VG

$6,350.40
Slide image
 

1.5 Carat Emerald - Natural Diamond - 1.5 - I - VS2 - EX - EX

$6,350.40
1.5 Carat Cushion Modified - Natural Diamond - 1.5 - H - VVS2 - EX - VG - Diamonds By Rothschild
 

1.5 Carat Cushion Modified - Natural Diamond - 1.5 - H - VVS2 - EX - VG

$6,350.40
1.5 Carat Natural Diamond - CUSHION - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - CUSHION

$6,350.40
Slide image
 

1.5 Carat Asscher - Natural Diamond - 1.51 - H - VS1 - EX - EX

$6,346.23
1.5 Carat Natural Diamond - ASSCHER - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - ASSCHER

$6,340.32
1.5 Carat Natural Diamond - CUSHION MODIFIED - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - CUSHION MODIFIED

$6,333.60
Slide image
 

1.5 Carat Cushion - Natural Diamond - 1.51 - F - VS2 - VG - EX - EX

$6,325.09
1.5 Carat Cushion - Natural Diamond - 1.51 - F - VS2 - VG - EX - VG - Diamonds By Rothschild
 

1.5 Carat Cushion - Natural Diamond - 1.51 - F - VS2 - VG - EX - VG

$6,325.09
1.5 Carat Natural Diamond - CUSHION - 1.51 - F - VS2 - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - CUSHION - 1.51 - F - VS2

$6,325.09
1.5 Carat Natural Diamond - ROUND - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - ROUND

$6,320.16
1.5 Carat Heart Shape Cut Natural Diamond - I VS1 - 1.7ct - EX Cut Grade - Diamonds By Rothschild
 

1.5 Carat Heart Shape Cut Natural Diamond - I VS1 - 1.7ct - EX Cut Grade

$6,311.76
Slide image
 
New

1.5 Carat Asscher - Natural Diamond - 1.5 - H - VS1 - EX - VG

$6,304.20
1.5 Carat Emerald Cut Natural Diamond - I VVS1 - 1.5ct - VG Cut Grade
 

1.5 Carat Emerald Cut Natural Diamond - I VVS1 - 1.5ct - VG Cut Grade

$6,300.00
1.5 Carat Radiant - Natural Diamond - 1.7 - J - SI1 - VG - EX - VG - Diamonds By Rothschild
 

1.5 Carat Radiant - Natural Diamond - 1.7 - J - SI1 - VG - EX - VG

$6,283.20
Slide image
 
New

1.5 Carat Princess - Natural Diamond - 1.52 - G - VS2 - VG - EX - VG

$6,281.86
1.5 Carat Natural Diamond - PRINCESS - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - PRINCESS

$6,255.52
1.5 Carat Round - Natural Diamond - 1.7 - J - VS2 - EX - EX - EX - Diamonds By Rothschild
 

1.5 Carat Round - Natural Diamond - 1.7 - J - VS2 - EX - EX - EX

$6,247.50
1.5 Carat Round - Natural Diamond - 1.78 - E - SI2 - VG - VG - G - Diamonds By Rothschild
 

1.5 Carat Round - Natural Diamond - 1.78 - E - SI2 - VG - VG - G

$6,237.48
Slide image
 

1.5 Carat Round - Natural Diamond - 1.5 - D - I1 - EX - EX - VG

$6,224.40
1.5 Carat Natural Diamond - Round - 1.52 - E - SI2 - Diamonds By Rothschild
 

1.5 Carat Natural Diamond - Round - 1.52 - E - SI2

$6,224.40
Variety of loose diamonds shapes for sale online

Explore More Natural Diamonds

Our hand-selected collection of natural diamonds are sustainable, and ethically sourced.

View All Diamonds

The Rothschild Letter

Quiet dispatches on craft, stones, and ceremony.

Occasional notes from our workshop — new arrivals, private previews, and the stories behind the pieces. Never more than twice a month.