John Saul Ruby: Kenya’s Rare Red Gemstone

Eric DawsonByEric Dawson Jewelry & Gemstones

For anyone asking what is a John Saul ruby, the answer is a ruby named for the John Saul mine in Tsavo West, Kenya. Ruby is the red variety of corundum, so the name identifies a mine association rather than a separate mineral species.

John Saul rubies range from pink to blood red, with discovery credited to American geologists John Saul and Elliot Miller in 1973 (Gemporia and Shop LC). Ruby is also the July birthstone and marks fifteenth and fortieth wedding anniversaries. Those traditions apply to ruby broadly, rather than being special properties of this Kenyan gemstone.

Who Discovered the Mine and Named the Gem?

The gemstone takes its trade name from the John Saul mine, rather than naming a separate mineral species. John Saul ruby is a mine-associated description for ruby sold under that name.

Other colors in the corundum family are called sapphires.

Saul’s gemstone work in Kenya included mining beryl east of Mount Kenya in the late 1960s. His beryl was stored in drums in his Nairobi yard, where a visitor noticed it, according to the Dallas Mineral Symposium biography.

Approximately six years separated that encounter from the ruby mine discovery in the symposium’s account. Beryl mining therefore forms part of the geologist’s history before the ruby deposit that carries his name.

Discovery accounts differ in how they assign credit, but they do not necessarily contradict each other. The Dallas Mineral Symposium biography singles out Saul, while Gemporia and Shop LC name both Saul and Miller. Time also identifies both men in its historical reporting on the deposit. Naming the mine after Saul should therefore not be read as evidence that Miller had no involvement.

Gemporia and Shop LC both use that 1973 date. Time places the discovery about a year before its report, using relative wording rather than an explicit calendar year. A straightforward account of the gemstone’s name keeps the jointly credited discovery and the retailers’ stated year together, without reconstructing a calendar date from Time’s relative description.

Where Are These Rubies Found in Kenya?

The mine lies in the Tsavo West area of southeast Kenya. A historical account places the ruby deposit associated with John M. Saul and Elliot “Tim” Miller specifically within Tsavo West National Park (Time).

Regional geography connects the mine with other East African gemstone deposits. Together, the tanzanite occurrence, the Umba River sapphire deposit in northeastern Tanzania, and the mine form a circle measuring 158 miles in diameter.

Saul worked beryl deposits east of Mount Kenya in the late 1960s as part of his mining career. His beryl was stored in drums in a Nairobi yard, separate from the ruby deposit.

Individual loose-stone listings from GemCollector identify Kenya as the country of origin. Product FIDS70 was offered with an average weight of 0.75 carats, while design QWDS32 carried an average weight of 0.7900 carats.

Country of origin and a specific mine attribution answer different questions. Kenya identifies the country claimed for a stone, while the John Saul name makes a more specific association. Neither GemCollector listing includes a documented chain of custody to the mine in its recorded description. Buyers should not treat a country field alone as proof of that narrower claim.

How Does the Color Range Compare with Pigeon Blood?

John Saul rubies have the broader color range described in Shop LC’s retail listing. “Pigeon Blood” is a narrower historical comparison concerning particular rough, rather than a color description applied to the entire range.

Good-quality rough encountered in the late 1970s had a Burma-like color in a dealer’s recollection. That comparison concerns appearance: the material discussed was rough from the John Saul mine.

Stones cut from that rough would receive a “Pigeon Blood” description today, in the retrospective assessment of Advanced Quality Gemstones. Here, the phrase expresses the dealer’s judgment about selected material, rather than an individual gemstone’s laboratory grade.

Labels such as “finest-quality” describe how these gems are marketed, rather than identifying a gemological grade.

Gemporia describes John Saul rubies as visually striking and credits their appeal with helping establish Kenya as a leading ruby supplier. Shop LC offers a similar promotional account of their color putting Kenya on the gemstone map. Those descriptions convey the retailers’ enthusiasm, but they provide neither production statistics nor a grade for a particular purchase.

When comparing stones, keep the broad color range separate from claims about exceptional historical material. A ruby marketed under the mine name does not automatically share the appearance of the rough the dealer remembered. Ask the seller to describe the actual gem rather than substituting the reputation of the mine for an individual description.

How Strong Is the Rarity Claim?

John Saul ruby rarity is a retailer’s characterization tied to mining described as “extremely difficult,” rather than an objective rarity ranking. Descriptions of exceptional quality and forecasts of lasting popularity and value are promotional assessments (Shop LC supplies the mining explanation; Gemporia makes the quality and future-value claims).

Shop LC does not pair its mining-difficulty account with annual production totals, confirmed reserves, or a mine-output history. Difficulty of extraction and the value of a particular retail stone remain separate issues.

Current mining activity is also unconfirmed here. An out-of-stock retail listing establishes only the recorded availability of that product, not that the mine has closed or that all John Saul rubies are unavailable. Gemporia’s forecast of lasting value is not accompanied by auction results or comparable-sales data that would support an investment conclusion.

For John Saul ruby rarity, I would ask for documented output and reserve information before accepting a scarcity pitch. In 2019, Columbus, I let a dealer add a $1,395 service contract to a used 2014 Honda Fit with 61,000 miles, then made no claim in six years, which is why I now read exclusions rather than mistaking one tidy story for proof.

What Do the Loose-Stone Listings Actually Offer?

GemCollector’s loose-stone listings offered individual gems described as “genuine gemstone,” with separate asking prices and weight details. Both entries are presented here as recorded listing details, rather than promises of current availability (GemCollector, as of September 2026).

Listing Detail FIDS70 QWDS32
Asking price £254.00 £279.00
Weight description Average weight: 0.75 carats Stated weight: 0.75ct; average weight: 0.7900 carats
Listed origin Kenya Kenya
Recorded stock status Out of stock Out of stock
Standard delivery £4.95 £4.95
Premium delivery £6.95 £6.95
Listed return policy 30-day money-back guarantee 30-day money-back guarantee

Payment options included interest-free installments on both entries. Those arrangements appeared alongside the individual stone descriptions and purchase terms. For additional comparisons, browse John Saul ruby loose gemstones on Amazon.

FIDS70’s payment plan specified 3 monthly payments of £84.66.

The installment option for QWDS32 offered 3 monthly payments of £93.00.

What Is a John Saul Ruby Worth?

John Saul ruby value cannot be established from retailer and resale asking prices alone. An appraisal must distinguish the individual gemstone from its mounting and account for weight, condition, quality, and support for the seller’s origin claim. Advertised amounts are asking prices, not completed-sale results or appraised values.

A resale ring was listed at $55 plus $6.49 shipping, with its ruby claimed to be mine-origin and weigh 1.10 ct. Described as platinum over sterling silver, the setting featured a halo of diamond accents. Because the listing offered finished jewelry rather than an unmounted gemstone, its price covered a materially different item.

Currency also separates the resale offer from the loose-stone retail listings: the ring was priced in dollars, while the loose gems were priced in pounds. Treating those amounts as a single price range would mix currencies as well as product formats. Shipping belongs to the purchase cost rather than the gemstone’s stated asking price.

Documentation quality and seller claims deserve separate consideration when comparing these offers. Weight, mounting, condition, and proof of origin differ between the listed items or have incomplete documentation. Dividing an advertised jewelry price by its claimed ruby weight would neither resolve those differences nor yield a defensible per-carat valuation.

Historical deposit estimates are no substitute for a gemstone appraisal either. Time reported an estimated value of at least $5 million for the Tsavo deposit, but that figure is not a current mine valuation or a price for finished rubies. Its valuation date and calculation method are not established here. Applying the amount to a modern purchase would confuse a historical deposit estimate with the value of an individual stone.

Which Details Should a Buyer Verify?

A buyer should check the listing’s weight information, treatment disclosures, laboratory documentation, mine-origin support, and purchase terms before ordering. Keep questions about the gemstone separate from questions about delivery and returns, so each receives a specific answer.

Descriptions such as “genuine gemstone” and a stated country of origin deserve separate attention from the other listing fields. Read the product description alongside any documents offered with the stone, keeping the seller’s wording intact when asking for clarification.

  1. Compare the weight fields. Ask which weight applies to the individual gemstone being offered, especially when the title and average-weight field use different figures. Request clarification before choosing the stone rather than selecting whichever entry seems preferable.
  2. Request a treatment disclosure for the specific gem. Frame the question directly: what treatments does the seller disclose for this stone? Keep that response separate from promotional descriptions of its appearance.
  3. Ask for any named gemological laboratory report and its report number. Request the complete document for review rather than relying on a reference to certification within the sales description.
  4. Question the specific mine-origin claim. Seek the documentation or chain-of-custody information supporting that attribution, and ask how the paperwork connects to the gemstone offered for sale.
  5. Confirm availability before placing an order. Check the delivery option and return conditions attached to the purchase, including how to arrange a return if the stone is unsuitable.

GemCollector’s listed purchase terms included a 30-day money-back guarantee, standard delivery at £4.95, and premium delivery at £6.95, according to its product listings. Review the terms presented at checkout before accepting the order.

Written answers give the purchase discussion a clear record. Save the product description, seller correspondence, accompanying documents, and order confirmation together before payment. During that final review, resolve contradictory wording directly with the seller rather than filling in an answer yourself. Proceed only when the purchase matches the description and conditions you intend to accept for that particular gemstone.

Frequently Asked Questions

Is a John Saul Ruby Natural or Laboratory-Created?

Shop LC describes the mine’s material as natural ruby, and the John Saul name refers to a Kenyan mine rather than a laboratory-created product. That general description does not authenticate every stone sold under the name. For an individual purchase, ask for documentation tied to the actual gem rather than relying only on the trade name or a seller’s use of “genuine gemstone.”

Does the Name Mean the Ruby Is Untreated?

No treatment status follows from the mine-associated name alone. Neither recorded GemCollector listing provides a treatment disclosure, named gemological laboratory, or report number. Request a specific written disclosure before treating either possibility as confirmed.

Are All John Saul Rubies Pigeon Blood Red?

John Saul rubies range from pink to blood red rather than having a single mandatory shade. A “Pigeon Blood” comparison concerns selected rough remembered from the late 1970s. Retrospective color judgments in that comparison apply to the selected rough, rather than every ruby from John Saul. Each individual stone still needs its own color description and supporting documentation.

Can the Retail Listings Establish a Price per Carat?

Asking prices alone do not provide a defensible current per-carat value range. The loose-stone listings and resale ring differ in product format, currency, weight descriptions, and documentation. Neither a completed-sale record nor an independent appraisal accompanies those examples here. Use them to understand what sellers advertised, not as a formula for pricing another ruby with the same mine name.

Is the John Saul Mine Still Operating?

Current production status is not established by the retailer descriptions or the historical accounts discussed here. Out-of-stock product notices likewise do not answer the operating-status question. A buyer should keep uncertainty about present mining activity separate from the documented details of a particular offered stone.

Does the Mine’s History Prove Ownership Today?

Time reported that Saul and Miller held a permit to develop their find and later pursued litigation to recover the mine. Its account also described Kenya’s stated smuggling allegations against Saul and the competing positions surrounding his expulsion. Those are attributed claims in a historical dispute, not a resolved account of present ownership. No current legal outcome is established here, so the history should not be used to authenticate a seller’s ownership or mine-origin claim.

References

Sources read in September 2026.

Eric Dawson

I'm Eric Dawson, and I write The Money Watch from north Columbus, Ohio. Most of what I cover comes from my own life: renting, a 2014 Honda Fit, parking, computers, food and the bills behind all of it. I spent four years in an apartment-property office and eleven on a distributor's operations desk, reading leases and invoices. Where you need real information, I research the maker's or agency's own page and independent sources and report what they publish. I don't give tax, investment, legal or medical advice.