




Collette Ring 1.50ct 18K White Gold Ruby
Product Code: GR18KW-COLL-RU1.50OV-5.5
100% conflict free
A more sustainable choice
Made With Love &
Gentle Diamonds
Model shown wearing 1.50ct centre stone.
Item will ship with 10 working days of purchase.
style | Four Prong Soitaire Ring |
---|---|
Stone Type | Lab Grown Ruby |
Ring Size Chart
Not sure of your ring size? Read our concise chart for measuring women’s ring sizes below.
Our top tips
For the most accurate result make sure that you take finger measurements in the evening when the hands are warm, as this is when finger diameter is largest. In colder weather, fingers are slimmer – sometimes up to half a size! You want to make sure that your ring will fit whether the wearer is warm or cool and that it’s never too tight.
While our ring size chart offers a good reference, we recommend you get your ring sized professionally in one of our boutiques. If you can’t visit, simply follow our ring size chart.
Inside Diameter |
||||
---|---|---|---|---|
Inches | MM | USA | UK | HK |
0.554 | 14.07 | 3 | F | 6 |
0.562 | 14.27 | 3.25 | F½ | 6.5 |
0.57 | 14.48 | 3.50 | G | 7.25 |
0.578 | 14.68 | 3.75 | G½ | 8 |
0.586 | 14.88 | 4 | H | 8.5 |
0.594 | 15.09 | 4.25 | H½ | 9 |
0.602 | 15.29 | 4.50 | I | 9.5 |
0.61 | 15.49 | 4.75 | I½ | 10 |
0.618 | 15.7 | 5 | J | 11 |
0.626 | 15.9 | 5.25 | J½ | 11.5 |
0.634 | 16.1 | 5.50 | K | 12 |
0.642 | 16.31 | 5.75 | K½ | 12.5 |
0.65 | 16.51 | 6 | L | 13 |
0.658 | 16.71 | 6.25 | L½ | 14 |
0.666 | 16.92 | 6.50 | M | 14.5 |
0.674 | 17.12 | 6.75 | M½ | 15 |
0.682 | 17.32 | 7 | N | 15.5 |
0.69 | 17.53 | 7.25 | N½ | 16 |
0.698 | 17.73 | 7.50 | O | 17 |
0.706 | 17.93 | 7.75 | O½ | 17.5 |
0.714 | 18.14 | 8 | P | 18 |
0.722 | 18.34 | 8.25 | P½ | 18.5 |
0.73 | 18.54 | 8.50 | Q | 19 |
0.738 | 18.75 | 8.75 | Q½ | 20 |
0.746 | 18.95 | 9 | R | 20.5 |
0.754 | 19.15 | 9.25 | R½ | 21 |
0.762 | 19.35 | 9.50 | S | 21.5 |
0.77 | 19.56 | 9.75 | S½ | 22 |
0.778 | 19.76 | 10 | T | 22.5 |



What are our
Ruby Gemstones?
Using the latest growing techniques, we cut and polish stunning lab grown Burmese colour Ruby. They are made of the same identical molecular properties as mined Ruby.
Each one is unique and has its own inclusions and imperfections as seen in mined Ruby. We call these natures fingerprints.
Note that since each stone is unique the small inclusions are part of their overall appeal and will look slightly different in each setting.