07 · JulyLab-Created Ruby Ring 7 mm
Laboratory-grown ruby, 7 mm, in a silver bezel. Grown, not found.
- Lab-created (synthetic)
- Untreated
- Mohs
- Wear
- 9
- Daily
£115incl. VAT
Section: July
July — Ruby
Ruby — red corundum, Mohs 9
Mohs 9 with no cleavage. One of the few stones here rated for daily wear.
3 pieces in this month, ordered by how often they can sensibly be worn — the most forgiving first.
Mineralogy
Ruby is corundum, aluminium oxide, coloured red by chromium. Any other colour of gem corundum is called sapphire; the line between a pale ruby and a pink sapphire is a trade convention, not a mineralogical one. Mohs 9, no cleavage.
What the trade does to it
Heating is standard and long-established for ruby. Lead-glass filling is also widespread in low-grade material and produces a stone that looks far better than it is; this site does not stock glass-filled ruby. Natural rubies here are declared heated, and lab-created rubies are labelled as such.
Documented history
Ruby has held July since 1912. Verneuil flame-fusion synthesis, first commercialised in 1902, made ruby the first gemstone to be manufactured at scale — which is exactly why disclosure matters on this species.
July pieces
From £115 · all prices include VAT
07 · July
Wear grades in this month
Suitable for daily wear
3 pieces in July
- Remove before contact sports and heavy manual work
- Remove before swimming pools and hot tubs — chlorine attacks the metal, not the stone
Occasional wear — avoid knocks
0 pieces in July
- Remove before gym equipment, gardening, DIY and washing up
- Do not stack against harder stones, which will abrade this one
- Avoid sudden temperature change
Delicate — special occasions only
0 pieces in July
- Remove before any physical activity — knocks will chip this stone
- Keep away from perfume, hairspray, cosmetics and hand sanitiser
- Avoid sudden temperature change and prolonged dry heat
- No ultrasonic tank, no steam, no soaking