18K Gold Eternity Lab-Grown Diamond Engagement Ring Set, 4.09 ct Cushion cut center, size 6
The store's own photos of item 68942. Tap a picture to zoom.
Which size?
Find your ring size in a minute
Your screen becomes the sizer. On most phones it is already true size, and a quarter lets you check. Then measure the finger you will wear the ring on, with a ring that already fits that finger or with a strip of paper.
1. Check the screen with a quarter
Lay a quarter flat on the screen, over the coin, and move the slider until the coin on the screen is exactly the size of yours. No quarter? Then the circle and the ruler are not to scale: measure your paper strip with a real ruler and set that number in millimeters on the strip slider, then send it to the desk.

2. Measure
Take a ring that fits the same finger of the same hand the new ring will live on; every finger is its own size. Set it on the screen over the circle and move the slider until the circle just fills the inside of the ring.
Size 7, 17.3 mm inside
Wrap a strip of paper snug around the base of the finger, where the ring sits, and mark where it meets. If your knuckle is bigger, wrap it there too and take a size between the two, nearer the knuckle. Lay the strip along the ruler's right edge from the 0. Move the slider until the gold line sits on your mark.
54.5 mm around is size 7
Size 7: 17.3 mm across, 54.4 mm around. 189 of the 210 rings here list size 7.
The engagement ring size chart, 4 to 16
| US size | Inside diameter | Around the finger | Rings here listing it |
|---|---|---|---|
| 4 | 14.9 mm | 46.8 mm | 93 |
| 4.5 | 15.3 mm | 48.0 mm | 98 |
| 5 | 15.7 mm | 49.3 mm | 190 |
| 5.5 | 16.1 mm | 50.6 mm | 190 |
| 6 | 16.5 mm | 51.9 mm | 196 |
| 6.5 | 16.9 mm | 53.1 mm | 197 |
| 7 | 17.3 mm | 54.4 mm | 189 |
| 7.5 | 17.7 mm | 55.7 mm | 182 |
| 8 | 18.1 mm | 57.0 mm | 180 |
| 8.5 | 18.5 mm | 58.2 mm | 138 |
| 9 | 18.9 mm | 59.5 mm | 127 |
| 9.5 | 19.4 mm | 60.8 mm | 18 |
| 10 | 19.8 mm | 62.1 mm | 16 |
| 10.5 | 20.2 mm | 63.3 mm | 1 |
| 11 | 20.6 mm | 64.6 mm | 1 |
| 11.5 | 21.0 mm | 65.9 mm | 0 |
| 12 | 21.4 mm | 67.2 mm | 0 |
| 12.5 | 21.8 mm | 68.5 mm | 0 |
| 13 | 22.2 mm | 69.7 mm | 0 |
| 13.5 | 22.6 mm | 71.0 mm | 0 |
| 14 | 23.0 mm | 72.3 mm | 0 |
| 14.5 | 23.4 mm | 73.6 mm | 0 |
| 15 | 23.8 mm | 74.8 mm | 0 |
| 15.5 | 24.2 mm | 76.1 mm | 0 |
| 16 | 24.6 mm | 77.4 mm | 0 |
A screen measurement checked with a quarter is a guide, good to about a half size; the desk sizes you right the first time. "Rings here listing it" counts the live listings.
Description
A cushion-cut lab-grown diamond of 4.09 carats, G color and VS1 clarity, prong set, sits at the center of this 18K gold eternity engagement set. The side diamonds are natural and round in F color and VS clarity, a grade whiter than the center. The set weighs 8.30 grams in all. It is made in size 6 only, so check the finger size first; yellow, rose or white gold. Shipped within the US, it comes with a TraxNYC appraisal of its weights and stones. A jeweler at our store on 47th Street can walk you through this piece by phone at 212-TRAXNYC (212-872-9692) during business hours.
The center stone, life size
Drawn to scale with the quarter.
Hold a real quarter flat on your screen, over the coin. Tap Smaller or Bigger until the coin on the screen matches it.
- Carat
- Cut
- Length
- Width
Add the wedding band
Pick a size above to add both
Buying from TraxNYC
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Questions & answers
Is this your best price?
What is the center stone?
Can I get it in another metal, with an engraving or another change?
What if the size is wrong? Can I return it?
Does it come with a lab report?
What if it is lost or stolen in the mail?
What metal is it?
Does it come with an appraisal or a certificate?
How fast does it ship, and can I return it?
Have another question? Ask in the chat on this page, or call or text 212-872-9692 (a person answers from 10 AM ET).










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