Prima Ring

Sale price$79.00 Regular price$190.00
Stone Size: 1 Carat
Ring Size: 4
Ring Size Guide

Step 1. Pick a ring you already own that fits the finger you have in mind.

Step 2. Measure the inside diameter in millimetres, edge to edge.

Step 3. Find that diameter in the table below. If you land between two sizes, take the larger one.

Measure at the end of the day, when fingers are at their largest. Cold hands measure small.

US UK Diameter
(mm)
Circumference
(mm)
3 F 14.0 44.1
3.5 G 14.4 45.4
4 H 14.8 46.6
4.5 I 15.2 47.9
5 J 15.7 49.3
5.5 K 16.1 50.5
6 L 16.5 51.9
6.5 M 16.9 53.1
7 N 17.3 54.5
7.5 O 17.7 55.7
8 P 18.1 57.1
8.5 Q 18.5 58.2
9 R 18.8 59.3
9.5 S 19.4 60.9
10 T 19.8 62.3
10.5 U 20.2 63.4
11 V 20.6 64.9
11.5 W 21.0 66.2
12 X 21.4 67.5

Still unsure? Order the size you think is closest. If it does not fit, send it back within 30 days and we will exchange it.

Free shipping to your country
Ships by —
  • 1% of a diamond’s price
  • No one can tell by looking
  • Will not cloud or scratch
  • 30 days to change your mind

Complete the set

Same design, made to be worn together.

This item Prima Ring $79.00
Prima Necklace $98.00
Prima Stud Earrings $88.00
Total $0.00

One carat, colourless, brilliant cut

The same ring. Two prices.

Colour

Both colourless

Sparkle

2.4x a diamond's fire

Everyday

Both last a lifetime

Mined diamond $10,000
Moissa $79

That sliver is the whole bar. Less than one percent.

Why it holds up.

Macro of a six-prong silver setting holding a brilliant-cut moissanite

Checked before it is set

Colourless, and clean enough that you would need a loupe. There is no cheaper version of this piece.

Extreme macro of moissanite crown facets showing rainbow dispersion

It passes a diamond tester

A jeweller's tester reads it as a diamond. It still isn't one — and that is the only thing it isn't.

Covered for life

Harder than sapphire or emerald. If the stone ever clouds or dulls, we replace it.

Before you decide

Everything else.