Flag of US $ USD


Click here to close

Cosmos Pendant Necklace


Availability: In stock

Showcasing one of our most iconic symbols, this demi-fine Cosmos Pendant necklace features an infinity of white sapphires set in sterling silver and brings simple elegance and personalisation to your everyday necklace stack.

  • Engravable on either side of the pendant
  • This necklace is adjustable by three alternate lengths
  • Finished by the signature Astley Clarke star-set white sapphire tag


* Required Fields

This Piece is Only Available On


Thank you for your interest in this beautiful piece; unfortunately it is currently unavailable but will be back shortly.

It is available for pre-order to be dispatched on the although we will endeavour to get it to you sooner.

Please click below to acknowledge this notice and continue shopping.

Got It
Collection Biography
Gemstone Cultured White Sapphire
Metal Sterling Silver
Metal Type Sterling Silver 925
Dimensions 10 x 1.5mm Cosmos pendant
Necklace Length Adjustable: 16"-18"
Engravable Front of Pendant


UK Size US Size EU Size Diameter
F 3 44 14.1mm
G 3 1/2 45 14.5mm
H 4 46 14.7mm
I 4 1/2 48 15.2mm
J 5 49 15.6mm
K 5 1/2 50 16.0mm
L 6 51 16.4mm
M 6 1/2 53 16.8mm
N 7 54 17.2mm
O 7 1/2 55 17.6mm
P 8 56 18.0mm

To download the ring size guide or order your free ring sizer, visit our size guide.


Use our photograph guide to personalise your locket.



Free shipping on all United States orders.

  • Sent by Express Courier (Air)
  • Up to 3 working days delivery time

Free returns available on all items.

  • All items including earrings are returnable within 14 days of receipt.
Metal: Rose Gold (Vermeil) | Gemstone: Cultured White Sapphire | Verified purchase


I bought this for my mother for Mothers Day. She loves it! The perfect gift, classic and simple.

Metal: Sterling Silver | Gemstone: Cultured White Sapphire | Verified purchase


Beautiful, classy pendant. I had it personalised with my initial and it looks great. Have had many compliments on it already

Metal: Sterling Silver | Gemstone: Cultured White Sapphire | Verified purchase


Bought for my Sister's 18th Birthday! She loved it. It’s very dainty and pretty - the perfect gift :)

Metal: Yellow Gold (Vermeil) | Gemstone: Cultured White Sapphire | Verified purchase


This is a beautiful item. Bought as a gift for my wife, she loves it.

Metal: Sterling Silver | Gemstone: Cultured White Sapphire | Verified purchase


It was engraved for a 16th birthday and was very well received, my go-to gifting brand

Drop a Hint To…

We will only use their e-mail address for this hint. Read more.


Anything Else?



Drop a Hint


We have it on good authority that the   from Astley Clarke is sitting right at the top of  's jewellery wish list. That strikes us as information worth having…

Go Back and Edit

Thank You

Let's face it, if they don’t get the hint now…

…they never will.