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0.35ct Ruby, Cushion

0.35ct Ruby, Cushion

$675 inc VAT

Gemstone
Ruby
Colour
Intense
Shape
Cushion
Carat weight
0.35ct
Measurements
4.38 x 3.83 mm
Origin
Mozambique
Treatment
None known
Certificate
GSI
Reference
CTD-G20643

  • Natural gemstone, sold with its measurements and any known treatment
  • Free delivery in the UK and Ireland, free returns within 30 days
  • Set it in a ring or pendant with Add jewellery, made to order and hallmarked

See more like this · Ask us about this stone

Similar rubies

See all rubies

About ruby

Ruby is red corundum, the same mineral as sapphire, and just as hard (9 on the Mohs scale), so it wears beautifully in an everyday ring. It is the birthstone for July. Most rubies are heated to improve their colour; the treatment is always shown on the stone's page.

Have it set in a ring

We can set this stone in any of our engagement ring designs, from a classic claw solitaire to a diamond halo, or design a ring around it. Every ring is made to order in our Cotswolds workshop and hallmarked. Try the shapes and settings in Ring Maker, then send us this stone on WhatsApp for a quote.

Coloured gemstone questions

Can I have a loose gemstone set in a ring?

Yes. Every stone here can be set in any of our ring designs, or in a ring designed for you. We make each ring to order in our Cotswolds workshop, usually in 3 to 4 weeks, and every ring is hallmarked.

Are your gemstones natural?

Yes, every gemstone listed is natural. Many coloured stones are heated to improve their colour, which is normal and permanent. Any treatment we know of is shown on the stone's page.

Which gemstones are best for an everyday ring?

Sapphire and ruby are the hardest gemstones after diamond, so they suit rings worn every day. Emerald, tanzanite, aquamarine and morganite are softer, so we suggest a protective setting such as a halo or rub-over.

What does the certificate tell me?

A gemstone certificate from a laboratory such as GRS, Gübelin, SSEF or GIA confirms the stone is natural, names it and records any treatment. Use the certificate filter to see only certified stones.

Why do coloured gemstones cost less than diamonds of the same size?

Many coloured stones are more plentiful than fine diamonds, and they are priced mostly on colour rather than on a fixed grading scale. The finest rubies, sapphires and emeralds can cost more than a diamond, but most good stones cost far less, so you can choose a larger stone for your budget.

What is the difference between heated and unheated?

Most sapphires and rubies are heated, which improves their colour and is permanent. Unheated stones of the same quality are rarer and cost more. Both are natural gemstones; the stone's page shows which it is.

Can I see the stone before I buy?

Every stone has its own photo, and many have a video. If you would like more pictures, a video call or a stone held for you to see, ask us on WhatsApp and we will help.

How long does delivery take?

Loose gemstones are usually delivered in 7 to 10 days, with free delivery in the UK and Ireland and free returns within 30 days.