how much is john saul ruby worth per carat

The going rate for a John Saul ruby is highly variable, but current listings suggest rough or lower-commercial-quality stones can be around $10 to about $75 per carat , while larger or certified star-ruby examples may list much higher depending on quality and setting. For jewelry pieces, the price is usually quoted as the whole item rather than per carat, so a ring listing at $394.90 for 2.27 ctw works out to roughly $174 per carat for the piece as sold.

What drives the price

Ruby value depends on color, clarity, treatment, origin, cut, and carat weight, and the highest-quality stones can reach thousands to tens of thousands of dollars per carat. For John Saul–origin material specifically, marketplace listings show a wide spread because some stones are sold as rough gems or star rubies, while others are mounted in finished jewelry.

Practical reading

If you mean a loose John Saul ruby , a reasonable public-market ballpark is:

• Rough / lower-grade material: about $10 per carat.

• Better listed star-ruby material: around $75 per carat in at least one public listing.

• Set jewelry: the apparent per-carat value can be much higher or lower because the price includes metal, design, and brand markup.

Context

That means there is no single fixed “John Saul ruby” price per carat. The safest answer is that public listings place it in a broad range from about $10 to $75+ per carat for loose stones , with finished jewelry priced separately.

Mini take

If you’re trying to value one stone, the most important missing details are whether it is loose or mounted, certified or not, heated or untreated, and star ruby or standard ruby.

TL;DR: A John Saul ruby is not priced at one standard rate; recent public listings suggest roughly $10–$75+ per carat for loose stones , while jewelry pieces should be evaluated as complete items.