5 Pieces Natural Ruby 0.53ct Heated Round Cabochons
€10.20 EURSKU: ru170-2-6
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A lot of five natural Thai ruby round cabochons, totaling 0.53ct, individual stones ranging 2.5 to 2.7mm in diameter. A step up in size from the smaller lots - the smooth domed cabochons show the deep semi-transparent red of heated Thai material, consistent across all five pieces.
Thai ruby from Chanthaburi and Kanchanaburi is known for its deep red character, with heat treatment applied as standard to enhance color. At 2.5-2.7mm per stone, this lot gives a bit more visual presence than the smaller lots and suits medium-small pavé or prong settings, cluster designs, and jewelry calling for slightly more substantial small ruby cabochons. Natural ruby, loose gemstones, July birthstone.
Natural Thai ruby cabochons, heat treated - sold as a lot of 5 stones.
We ship worldwide from Sofia, Bulgaria. Every order is packed in a protective box with bubble wrap. Orders within Bulgaria are dispatched within 1-2 business days and international orders within 2-3 business days. Free shipping is applied automatically at checkout, and the threshold applies to the order value after any discounts.
Delivery within Bulgaria
- Delivered by Speedy, Econt or Box Now, to a courier office, a locker or your address.
- Fixed prices: Box Now locker €1.60 (free on orders from €25), Speedy office €3.20, Econt office or locker €4.00, Speedy to your address €4.50.
- Free shipping on orders over €50, with any courier and at any weight.
- Cash on delivery is available.
- Delivery normally takes 1-2 business days after dispatch.
- Hardness
- 9
- Cleavage
- None
- Durability
- Excellent
- Soapy water
- Safe
- Ultrasonic
- Avoid
- Steam
- Avoid
About ruby
Ruby is the red variety of the mineral corundum. At 9 on the Mohs scale it is second only to diamond, and it is also very tough with no cleavage, so it rarely chips or splits when knocked. Together that makes it one of the most durable gemstones for everyday wear, rings included.
Cleaning
Warm water, a drop of mild dish soap and a soft brush, then rinse and dry with a soft cloth. Skip ultrasonic and steam cleaners: cabochons usually contain fine inclusions or fissures that vibration and heat can open.
Wear and storage
Ruby is very hard, so it can scratch softer gemstones stored with it. Only diamond can scratch it, so keep it apart from diamonds and store it on its own in a gem jar or a soft pouch.
For your jeweler
These stones are heated, and the color from heating is stable. Ruby handles normal setting, re-tipping and polishing well. If the stone has fissures that reach the surface, keep it out of direct torch flame and acid pickle.
Scale
True to scale: 2.5 – 2.7 mm
Shown next to a €1 coin (23.25 mm) in the exact ratio, so you can picture the real size.
