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Diamonds

  • Diamond Search
  • Vivo Signature Diamonds


  • Diamond Education
  • Diamond Certification


Design Your Own Ring

  • Classic Solitaire Rings
  • Settings with Sidestones
  • Pave Set Rings
  • Three Stone Rings
  • Coloured Stone Settings


  • Design your own Ring
  • How to choose a Ring


Wedding & Anniversary

  • Couple Wedding Rings
  • Diamond Wedding Bands
  • Men Wedding Bands
  • Three Stone Settings
  • Eternity Rings


  • Design your own Ring
  • How to choose a Ring
  • 30 Days Return


Bracelets

  • Diamond Bracelet
  • Pearl Bracelet
  • Tennis Bracelet


  • Metal Guide
  • Why buy from us?


Earrings

  • Diamond Studs
  • Diamond Hoops
  • Gemstone Earrings
  • Pearl Earrings


  • 30 Days Return
  • Why buy from us?


Pendants

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  • Three Stone Pendants


  • Metal Guide
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Education

  • WHAT IS A SUPER IDEAL DIAMOND?
    • Hearts and Arrows
  • FINDING THE RIGHT DIAMOND
    • Choosing a Shape
    • The Four C's
      • Cut
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  • WHY SHOP FOR A LOOSE DIAMOND?
  • ABOUT DIAMONDS
    • What is a Diamond?
    • What makes a Diamond Special?
    • Manufacturing the Diamond
  • DIAMOND GLOSSARY
  • DIAMOND CARE
    • Cleaning Precious Metals
    • Gold & Metals Guide
  • ENGAGEMENT RING GUIDE
  • Ring Size


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Testimonials
Customer Service Hours:
11am - 6pm Mon - Tues
11am - 8pm Wednesday
11am - 6pm Thurs - Fri
11am - 4pm Saturday
Off - Sunday

Questions? Contact Us
call 6836-3789
for international orders call
+65-6836-3789
service@vivodiamonds.com

For phone orders,
please mention:
097FTJ


Carat Weight

Carat is a term that refers to the weight of a diamond. Before the twentieth century, diamonds were measured by using the carob seed that is small and uniform and served as a perfect counter weight to the diamond. It is those original carob seeds which are the origin of the word carat we use today. The majority of diamonds used in jewelry and sold loose in the United States are one carat or less in weight. The average engagement ring diamond sold in the US is less than 1/2ct in weight.

When rough diamonds are cut and polished into finished diamonds, as much as 2/3rd of the total carat weight is lost. Because larger gem quality rough is found less frequently than smaller rough, a two carat diamond will be far more expensive than two one carat diamonds of the same quality.

A diamond will increase in weight much faster than it increases in actual "face-up" diameter. While an ideal cut one-carat diamond measures approximately 6.5mm in width, a diamond of twice its weight is only 8.2mm wide - less than a 30% increase. The graphic to the righ helps demonstrate:

Which Carat Weight is Right for you?

When deciding on which carat size is best for you, there are many things to consider. First and foremost, however, are her expectations. Which of the Four C's does she value most? Is her heart set on a full "one-carat", "vvs" clarity or perhaps "D" colour? If you're not sure, ask a close friend or relative for advice. When determining carat it's also helpful to consider things such as her own personal style, her finger size, and the limitations of the engagement ring.

Learn about Diamond Symmetry >>
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