Trustpilot

Up to 50% Off  |  Shop Sale

October Birthday?  |  Shop Opal

English

£ GBP
$ USD
$ AUD
$ CAD
$ NZD
kr NOK
kr SEK
CHF
€ EUR
My Basket

Diamond Jewellery

Diamond Jewellery

A stunning selection of diamond jewellery from Ruby & Oscar. Featuring an array of inspired R&O designs ranging from the elegant to the bold - and the classic to the contemporary. Showcasing a wide variety of cuts, set in gold, white gold, rose gold and sterling silver. Browse Ruby & Oscar's collection of diamond necklaces, rings, earrings and bracelets.

Diamond Jewellery
Sort By

Showing 1 - 24 of 133 styles

Page
per page
  1. Newest
  2. Most Popular
  3. Price (High to Low)
  4. Price (Low to High)
  5. Name
Filter by:
Clear All
Filter by:
Price
Sale
Filter by:
Sale
  1. Sale 3items
Next Day Delivery
Filter by:
Next Day Delivery
  1. Next Day Delivery 90items
Gender
Jewellery Type
Gemstone
Stone Colour
Filter by:
Stone Colour
  1. Clear 130items
Metal
Collection
Style
Filter by:
  1. Gemstone
    Diamond
Clear All
Ruby & Oscar 0.5ct Diamond Solitaire Stud Earrings in 9ct White Gold - R168179W
Illuminate Stud Earrings
£339
Rating:
93%
3 Reviews
Diamond, 9ct White Gold
  • Best Seller
Ruby & Oscar Men's Diamond Classic Ring 0.01 carat in 9ct White Gold - R166229W
Men's Fortitude Classic Ring
£345
As low as £300
Rating:
100%
2 Reviews
0.01 ctw Diamond, 9ct White Gold

Multiple ring sizes available

  • Sale
  • Next Day
Ruby & Oscar 0.75ct Diamond Solitaire Stud Earrings in 9ct White Gold - R168173W
Illuminate Stud Earrings
£549 £499
Diamond, 9ct White Gold

+1 metal available

  • Sale
Ruby & Oscar 1ct Diamond Eternity Ring in 9ct White Gold - R168153W
Devotion Dimensional Eternity Ring
£495
Rating:
100%
3 Reviews
1.0 ctw Diamond, 9ct White Gold

Multiple ring sizes available

  • Next Day
Ruby & Oscar 0.5ct Diamond Solitaire Stud Earrings in 9ct Rose Gold - R168183R
Illuminate Stud Earrings
£345
Diamond, 9ct Rose Gold
Ruby & Oscar Diamond Stud Earrings 0.2 carat in 9ct Gold - R151653Y
Illuminate Stud Earrings
£285
Diamond, 9ct Gold

+1 metal available

Ruby & Oscar Men's Diamond Brushed Matte Comfort Fit Ring 0.03 carat in Sterling Silver - R166245S
Men's Fortitude Cuatro Ring
£199
0.03 ctw Diamond, Sterling Silver

Multiple ring sizes available

  • Best Seller
Ruby & Oscar 0.75ct Diamond Solitaire Stud Earrings in 9ct Gold - R168175Y
Illuminate Stud Earrings
£555
Diamond, 9ct Gold
Ruby & Oscar Diamond Necklace 0.05 carat in Sterling Silver - R171347S
Stability Pendant Necklace
£235
Diamond, Sterling Silver

Multiple lengths available

Ruby & Oscar 1ct Diamond Solitaire Stud Earrings in 9ct Gold - R168169Y
Illuminate Stud Earrings
£755
Diamond, 9ct Gold
Ruby & Oscar 0.5ct Diamond Solitaire Stud Earrings in 9ct Gold - R168181Y
Illuminate Stud Earrings
£339
Rating:
100%
1 Review
Diamond, 9ct Gold
Ruby & Oscar Diamond Letter J Pendant Necklace 0.09 carat in 14k Gold Plated Sterling Silver - R181055Y
Initial Letter Pendant Necklace
£199
Diamond, 9ct Gold

Letters A-Z available

  • Next Day
  • New
Ruby & Oscar Diamond 5-Stone Band Stackable Ring 0.1 carat in 9ct Gold Plated Sterling Silver - R186207Y - Product Image #1
Stackable Delicacy Cinco Ring
£189
0.1 ctw Diamond, 9ct Gold Plated

Multiple ring sizes available

  • New
Ruby & Oscar Mens 0.1ct Diamond Stud Earring in 9ct White Gold - R168199W
Men's Illuminate Stud Earrings
£249
Diamond, 9ct White Gold
  • Next Day
Ruby & Oscar Diamond Letter C Pendant Necklace 0.13 carat in 14k Gold Plated Sterling Silver - R180355Y
Initial Letter Pendant Necklace
£229
Diamond, 9ct Gold

Letters A-Z available

  • Next Day
  • New
Ruby & Oscar Diamond Letter H Pendant Necklace 0.15 carat in 14k Gold Plated Sterling Silver - R180855Y
Initial Letter Pendant Necklace
£239
Diamond, 9ct Gold

Letters A-Z available

  • New
Ruby & Oscar Diamond Starlight Stackable Ring 0.1 carat in 9ct Gold Plated Sterling Silver - R186173Y - Product Image #1
Stackable Delicacy Starlight Ring
£199
0.1 ctw Diamond, 9ct Gold Plated

Multiple ring sizes available

  • Next Day
  • New
Ruby & Oscar Diamond 3-Stone Band Stackable Ring 0.024 carat in 9ct Gold Plated Sterling Silver - R186183Y - Product Image #1
Stackable Delicacy Trio Ring
£149
0.02 ctw Diamond, 9ct Gold Plated

Multiple ring sizes available

  • New
Ruby & Oscar Diamond Necklace 0.05 carat in Sterling Silver - R171351S
Stability Pendant Necklace
£235
Diamond, Sterling Silver

Multiple lengths available

Ruby & Oscar Mens 0.1ct Diamond Stud Earring in 9ct Gold - R168201Y
Men's Illuminate Stud Earrings
£249
Diamond, 9ct Gold
Ruby & Oscar Mens 0.5ct Diamond Stud Earring in 9ct White Gold - R168187W
Men's Illuminate Stud Earrings
£399
Diamond, 9ct White Gold
  • Next Day
Ruby & Oscar Diamond Letter A Pendant Necklace 0.15 carat in Sterling Silver - R180133S
Initial Letter Pendant Necklace
£239
Diamond, Sterling Silver

Letters A-Z available

  • Next Day
  • New
Ruby & Oscar Diamond Letter F Pendant Necklace 0.12 carat in Sterling Silver - R180633S
Initial Letter Pendant Necklace
£225
Diamond, Sterling Silver

Letters A-Z available

  • Next Day
  • New
Ruby & Oscar Diamond Letter I Pendant Necklace 0.06 carat in Sterling Silver - R180933S
Initial Letter Pendant Necklace
£179
Diamond, Sterling Silver

Letters A-Z available

  • New
Sort By

Showing 1 - 24 of 133 styles

Page
per page
  1. Newest
  2. Most Popular
  3. Price (High to Low)
  4. Price (Low to High)
  5. Name