Ralph Jacobs

What is Moissanite?

Moissanite is truly a unique stone and so is the story of Henri Moissan who discovered the crystal in 1893 while examining rock samples from a meteor crater in Canyon Diablo Arizona. He initially mistaken the crystal as a diamond, he later identified the crystals as silicon carbide, the mineral form of silicon carbide was named moissanite in honour of Moissan later in his life.

Moissanite as we know it today is laboratory-created as moissanite in its natural form, is extremely rare. Ralph Jacobs successfully synthesized their own collection of Moissanite that mimics the characteristics of a Natural Moissanite, known as Evermore Radiant Evermore Brilliance and Evermore Classic. Evermore Radiant which is the highest quality of moissanite (E-F colour) can be compared to a E colour GIA-certified diamond.

While diamonds are graded on the 4 C’s scale (Cut, Clarity, Color, Carat), moissanites are graded solely on color. The cut and clarity is similar across different qualities of moissanites.

Why choose the Ralph Jacobs created Moissanite

Ralph Jacobs created Moissanite is The Brightest Alternative to a Diamond, On the Mohs Scale (Hardness) moissanite is 9.25 compared to a diamond which is 10. The difference of only .75 is not enough to discount the high durability of the moissanite. However, Moissanite Refraction Index (RI) and Fire Dispersion out ways that of a diamond, making the moissanite more brilliant (shine) compared to a diamond.

  • Evermore Radiant : E-F Colour - Colourless

  • Evermore Brilliance : G-H Colour – Near Colourless

  • Evermore Classic : I-J Colour – Faint Yellow


Natural diamonds prices vary based on shape, carat, cut, color, and clarity. Moissanite gems vary in price only based on size and colour.

Moissanite is are more affordable than natural diamonds.

Ralph Jacobs offer 3 colours namely Evermore Radiant (E-F colour), Evermore Brilliance (G-H colour) and Evermore Classic (I-J colour). Evermore Radiant being the supreme colour and most expensive in the range.

The Ralph Jacobs created Moissanite Lifetime Warranty

Ralph Jacobs provides a Lifetime Warranty that applies to your purchase of authentic RALPH JACOBS CREATED MOISSANITE gem(s) that are 4mm in size or larger.  The terms of the Lifetime Warranty include a warranty against defects in material and workmanship in the moissanite gem(s). read more at www.ralphjacobs.co.za/moissanite

Authenticity Certificate

All Ralph Jacobs Evermore Moissanites come with an authenticity certificate.

Remember to Register your Warranty on our Moissanite Website: www.ralphjacobs.co.za/moissanite

Shipment and Delivery

We now offer FREE shipping within South Africa. Delivery of your Ralph Jacobs created Moissanite will take 15- working days from date of order.

For more information visit our webiste www.ralphjacobs.co.za/moissanite , email us at moissanite@ralphjacobs.co.za or conatct us on +27875510695