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Optimum Global health insurance for expats in Asia

Optimum Global sells the Gem-plan international private medical insurance (IPMI) product for individuals, families and groups living or working overseas. IPMIAsia explains how the plan is structured, which documents hold the limits, how claims work, and what to check before comparing it from Asia.

Last updated: 20 October 2026 · Reviewed by IPMIAsia
In short: Optimum Global's Gem plan is an international health insurance product for individuals, families and groups living or working overseas, issued by Optimum Global Insurance Company Limited in Guernsey and published as separate benefit guides in USD, GBP and EUR rather than a tier ladder. It suits expats in Asia who want a sterling or euro plan and the full range of underwriting routes; it is not VUMI's Optimum VIP.
Key takeaways
  • Numeric limits come from the currency-specific Gem benefit guide supplied with your quote; no universal limit table is published.
  • Deductible, coinsurance and copayment are all defined on the schedule, so the combination decides what a year of claims costs.
  • Planned inpatient or day-case treatment requires contact in advance; in an emergency, contact Optimum ideally within 24 hours of admission.
  • Published underwriting documents are a medical questionnaire, a CPME form and a moratorium guide, so all three main routes are represented.
  • Optimum says it aims to assess claims within 14 working days, a stated target rather than an observed average.
Product documentsGem Plan benefit guides in USD, GBP and EUR
CustomersIndividuals, families and groups living or working overseas
CoverInpatient and outpatient options; cancer and evacuation within the selected benefit table
Cost sharingDeductible, coinsurance and copayment defined on the schedule
Underwriting documentsIndividual medical questionnaire · CPME · moratorium guide
IssuerOptimum Global Insurance Company Limited (Guernsey), with AXA PPP healthcare reinsurance

What the Gem plan is

Optimum Global's international product is sold as the Gem plan, and the first thing to get clear is that it is not VUMI's similarly named Optimum VIP. The two come from different insurers and are built differently; VUMI's page covers the other one.

The Gem plan is aimed at individuals, families and groups living or working overseas. Optimum Global publishes its specification as a set of benefit guides rather than a single marketing table, so the honest way to summarise it is by feature:

FeaturePublished position
Hospital coverInpatient and outpatient options; planned inpatient or day-case treatment requires contact in advance
CancerAvailable within the selected benefit table
Evacuation and repatriationAvailable within the selected benefit table
Cost sharingDeductible, coinsurance and copayment are defined on the schedule or benefit table
CurrencySeparate Gem benefit guides published in USD, GBP and EUR

The current download library does not expose one universal limit table in page text. Numeric limits therefore have to be taken from the currency-specific guide supplied with your quote, and that is the document to read before comparing Optimum Global with any other insurer.

How to read a benefit-guide product

Many international insurers publish a tier ladder with a headline annual maximum per tier. Optimum Global's approach is different: you choose a benefit table in your currency, and the schedule issued with the policy defines the limits and the cost sharing that apply to you. Three practical consequences follow.

Claims and pre-authorisation

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Underwriting documents and who issues the cover

Optimum Global publishes an individual medical questionnaire, a CPME form and a moratorium guide among its underwriting documents. In plain terms that means the market's main routes are all represented: full medical underwriting through the questionnaire, continued personal medical exclusions when switching from another insurer, and a moratorium basis where recent conditions are excluded until a symptom-free period has passed. Which route you are offered, and on what terms, depends on the current schedule. Our pre-existing conditions guide explains the differences.

On the entities involved: the policy documentation identifies Optimum Global Insurance Company Limited, a Guernsey insurer, as the issuer, and describes AXA PPP healthcare reinsurance. Optimum Global Limited is FCA-regulated for insurance mediation. Exact eligibility, area, limits, exclusions and underwriting depend on the current schedule and the chosen Gem guide.

Optimum Global for expats in Asia

The published material IPMIAsia works from does not set out a fixed area-of-cover menu, so the area that applies to you is a matter for the schedule issued with your quote. When you ask for one, ask two questions that matter for life in Asia: whether the USA can be excluded to reduce the premium, and whether the area covers the countries you actually travel between, for example a home in Vietnam and regular trips to Singapore or Hong Kong. Our guide to regional versus worldwide cover in Asia explains why the area is usually the biggest lever after the cover level.

Currency is a genuine choice here. Most expats in Asia will find the USD guide the easiest to compare against the rest of the market, but a British family paid in sterling or a European family paid in euros can hold the plan in their own currency and avoid exchange friction on claims. IPMIAsia includes Optimum Global in its whole-market comparison through Nomi, so the Gem plan's terms can be set against price alongside 20+ other insurers.

Relevant country pages: Thailand, Singapore, Hong Kong, Malaysia, Vietnam, Indonesia, the Philippines and Japan.

Who Optimum Global suits

A strong fit if you want a plan in sterling or euros rather than US dollars, you are comfortable reading a benefit guide rather than a tier ladder, and you want the full range of underwriting routes (questionnaire, CPME and moratorium) available in principle.

Worth comparing alternatives if you prefer a published tier table with headline limits you can compare at a glance, or you want a published regional area for Asia. Browse all insurers to see the alternatives side by side.

Frequently asked questions

What is the Optimum Global Gem plan?
The Gem plan is Optimum Global's international medical product for individuals, families and groups living or working overseas. It offers inpatient and outpatient options, with cancer and evacuation available within the selected benefit table, and is published as separate benefit guides in USD, GBP and EUR.
Where do I find the plan's limits?
In the currency-specific Gem benefit guide supplied with your quote. The public download library does not expose a single universal limit table, so the guide and the policy schedule are the documents that define your limits and cost sharing.
Is Optimum Global the same as VUMI's Optimum VIP?
No. Optimum Global is a separate insurer whose product is the Gem plan, issued by Optimum Global Insurance Company Limited in Guernsey. Optimum VIP is a VUMI plan for specified chronic conditions. IPMIAsia covers each on its own page.
Do I need to pre-authorise treatment?
Yes for planned inpatient or day-case treatment, where you must contact Optimum Global in advance. In an emergency, contact them as soon as possible and ideally within 24 hours of admission. A Guarantee of Payment can allow settlement directly with the provider.
How does Optimum Global underwrite?
Its published underwriting documents are an individual medical questionnaire, a CPME form and a moratorium guide, so full medical underwriting, continued personal medical exclusions and moratorium routes are all represented. The current schedule confirms which applies to you and on what terms.
Who issues and regulates the cover?
The policy documentation names Optimum Global Insurance Company Limited, a Guernsey insurer, as issuer and describes AXA PPP healthcare reinsurance. Optimum Global Limited is FCA-regulated for insurance mediation.

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This page is general information, not personal or medical advice, and is based on Optimum Global's official document library and membership guide dated 1 December 2024; exact eligibility, area, limits, exclusions and underwriting depend on the current schedule and chosen Gem guide and are confirmed by the insurer at quote. Prices are indicative. Optimum Global and the Optimum Global logo are trademarks of their respective owners. No network total, named hospital partnership or average approval time is asserted.