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Commins & Co Jewellers, Powerscourt Townhouse, Dublin 2. Tel: 01 4422472.   Google Places (129 reviews)

The four C’s for diamonds

Important information when viewing diamonds – The Four C’s

When buying your engagement ring or diamond ring, you need to know the basics. All reputable jewellers in Ireland and across the world, use the four C’s to describe diamond quality.

1. Diamond Cut

  • The first and most important point of the four C’s is diamond cut.
  • Cut refers to the reflective quality of a diamond and not its shape.
  • If a diamond is cut properly, it will reflect the light up through the centre of the stone.  It will also have an amazing sparkle on your engagement ring.
  • A poorly cut diamond will leak the light, resulting in less light being reflected and less sparkle.

 

When viewing engagement rings or diamond rings, please ask your jeweller to explain the 4C’s or four C’s to you.

 

2. Diamond Clarity

  • Most diamonds contain tiny natural marks called inclusions (or blemishes).
  • Many of these cannot be seen with the naked eye.
  • The number of inclusions, their size and location all affect the diamond’s clarity grade.

The fewer inclusions on the diamond, the more valuable the diamond.

 

diamond clarity

When viewing engagement rings or diamond rings, please Ask your jeweller to explain the 4C’s or the four C’s to you.

 

3. Diamond Carat

The carat-weight of a diamond measures the weight of a diamond and not the actual “size”: 1ct = 0.2 gram
(Note: Images not to scale, pictures shown are for comparison purposes only).

 

 

diamond carat

When viewing engagement rings or diamond rings, please ask your jeweller to explain the 4C’s or four C’s to you.

 

4. Diamond Colour

  • The closer a diamond is to being colourless, the rarer and more valuable the stone.
  • Diamonds can be measured on a colour scale which ranges from D (the best and colourless) to Z (light yellow).
  • The further down the alphabet the diamond is, the more yellow appears in the stone.

Diamonds that are high up the colour grading scale, such as D, E, & F, are considered to be most valuable.

 

diamond colour scale

When viewing engagement rings or diamond rings, please Ask your jeweller to explain the 4C’s to you.

Availability and Convenience

Availability and Convenience

Open 7 days a week, Monday to Sunday. No appointment necessary and located 1 minute walk from Grafton Street.
Customer Service

Customer Service

Free sonic cleaning with all rings along with having a in house goldsmith available for all amendments.
Cost

Cost

Up to 50% below high street prices due to our network with diamond dealers and low overheads.
Free independent valuation

Free independent valuation

All our engagement rings come with free independent valuations worth over €100 from Irelands leading gemmologist.
Selection

Selection

Over 400 diamond rings in stock – all available to be amended to suit your style and budget. Access to over 1 million certified diamonds.