What Is Marine Insurance in Granite Shipping — Do You Need It and How Much Does It Cost
You have received a FOB quotation from an Indian granite supplier. The price looks right, the sample is approved, and the container is almost ready to load. Then someone asks: what happens if the vessel runs aground? What if the container goes overboard in a storm? Under FOB terms, the cargo becomes your responsibility the moment it is loaded onto the vessel at the Indian port. The supplier’s liability ends there. Marine insurance for granite shipping is what stands between you and the full replacement cost of that container — and for a UK importer buying direct from India for the first time, understanding what it covers, what it does not, and what it actually costs is essential before you commit.
Quick Answer
Marine cargo insurance covers physical loss or damage to your granite during ocean transit — sinking, fire, collision, theft, overboard loss. When buying on FOB terms, the buyer arranges it independently. Cost is typically 0.3–0.8% of the insured cargo value. On a container with a CIF value of £17,000, that is roughly £50–£135. The premium is negligible relative to the risk of an uninsured container loss.
What FOB Terms Actually Mean for Your Risk
FOB — Free On Board — is the standard shipping term used by most Indian granite exporters, including StoneCrest International. It means the supplier covers all costs and risks up to the point the cargo is loaded onto the nominated vessel at the port of origin. From that moment, the risk transfers entirely to the buyer.
In practice: if the container is damaged at Mundra port before loading, that is the supplier’s problem. If it is damaged one hour after loading, it is yours. This is not a legal technicality buried in the fine print. It is the commercial reality of FOB trade, and it applies whether or not you have read the Incoterms documentation.
The voyage from India to a UK port — Felixstowe, Southampton, Tilbury — takes 25 to 35 days. That is five weeks on the water, through the Arabian Sea, the Red Sea or the Cape of Good Hope route, and the North Atlantic approaches. Storms, collisions, vessel groundings, and container losses are statistically rare but not theoretical. The Allianz Safety and Shipping Review documents hundreds of cargo losses annually across global shipping lanes. A polished granite container weighing 18–22 tonnes represents a real financial exposure if it goes wrong.
Who arranges freight under FOB
Under FOB terms, the buyer nominates the freight forwarder and arranges ocean freight from the Indian port to the UK destination port. Your freight forwarder handles the booking with the shipping line, the Bill of Lading, and the arrival logistics at the UK end. Marine cargo insurance sits alongside this — it is a separate arrangement from the freight booking, though many freight forwarders can arrange it on your behalf as part of their service.
What Marine Cargo Insurance Covers
Standard marine cargo insurance — typically written on Institute Cargo Clauses (A) terms, which is the broadest available cover — covers physical loss or damage to your goods during transit. For a granite container, the covered events include:
Total loss of the vessel — sinking, grounding, or capsizing. If the vessel goes down with your container, the insured value of the cargo is paid out.
Collision damage — if the vessel is involved in a collision and your container or its contents are damaged as a result.
Fire or explosion — on board the vessel or at a port facility during the voyage.
Container overboard — containers are lost overboard in heavy weather more often than the industry likes to discuss. The World Shipping Council estimates an average of over 1,000 containers are lost at sea each year. Under a standard marine policy, this is a covered loss.
Theft — cargo theft at ports or during transhipment is a covered peril under most standard policies.
What marine insurance does not cover
Understanding the exclusions is as important as understanding the cover. Three exclusions are particularly relevant for granite importers.
Inherent vice. If the stone breaks because it was packed inadequately — without sufficient foam protection, without proper timber crating, without edge protection on polished faces — that is classified as inherent vice or a packing defect. It is not covered under a marine policy. This is why pre-shipment packing standards matter. The export process at StoneCrest includes a logistics check and pre-shipment photographs specifically so the buyer can confirm packing before the container is sealed. A well-packed container of granite is not going to break in transit from the voyage itself — breakage almost always traces back to inadequate packing, and that sits with the supplier.
Delay. Marine cargo insurance does not compensate for late arrival. If your container is delayed by port congestion, a vessel schedule change, or transhipment delays, and that delay costs you business, there is no insurance payout for that loss. Lead time planning — not insurance — is the answer to transit delay risk.
Market loss. If your granite arrives in perfect condition but the market price for that stone has fallen while it was at sea, that is not an insured loss. Insurance covers physical damage and physical loss — not commercial risk.
How to Arrange Marine Cargo Insurance
There are two standard ways to arrange marine cargo insurance as a UK importer. Your freight forwarder is usually the simplest starting point — most established freight forwarders either offer marine insurance directly or can connect you with a specialist cargo insurer.
Open cover policies
An open cover policy is a standing arrangement that covers all shipments made during a defined period — typically a year — under one policy. Each shipment is declared against the policy as it is booked. For a mason who plans to import two or three containers per year, an open cover policy is administratively straightforward and often slightly cheaper per shipment than voyage-specific cover. The British Insurance Brokers’ Association (BIBA) maintains a directory of specialist cargo insurance brokers if you are arranging this independently.
Voyage-specific cover
For a first import — a single container, one voyage — voyage-specific cover is the practical choice. You insure one container for one journey from the named Indian port to the named UK port. The premium is calculated, paid, and the certificate is issued before the vessel departs. There is no ongoing commitment. If you do not import again for two years, there is nothing to manage. Most freight forwarders can arrange voyage-specific cover at the point of booking the freight.
What Marine Insurance Actually Costs
The premium calculation is straightforward. Marine cargo insurance is priced as a percentage of the CIF value of the cargo — that is the FOB value plus freight plus the cost of the insurance itself (a small circular calculation that insurers handle automatically).
Standard rates for polished granite in a container typically fall between 0.3% and 0.8% of insured value, depending on the insurer, the routing, and the cover terms. Take a realistic first container scenario:
FOB value of granite: £15,000. Ocean freight from India to Felixstowe: £2,000. CIF value: approximately £17,000. Insurance at 0.5%: £85.
That is the cost of insuring £17,000 of polished granite across a five-week ocean voyage. At the high end of the rate range — 0.8% — the premium reaches £136. At the low end — 0.3% — it is £51. In every scenario, the premium is negligible relative to the cargo value and the cost of an uninsured loss.
There is no commercially rational argument for skipping marine cargo insurance on a container import. The premium is a rounding error on the total landed cost of the shipment.
What if the supplier offers CIF terms instead
CIF — Cost, Insurance, Freight — means the supplier arranges and pays for ocean freight and marine insurance on your behalf, and the quoted price includes both. On the surface, this sounds convenient. In practice, there are two things to check before accepting CIF terms.
First, what policy has the supplier arranged? CIF insurance is typically the minimum required under the Incoterms rules — Institute Cargo Clauses (C), which is the most restrictive cover available. It covers far fewer perils than the (A) clauses. A buyer who thinks they are insured under CIF terms and then suffers a loss that falls outside the (C) clauses has a problem.
Second, who is the beneficiary and how is a claim made? Under CIF, the insurance is arranged by the supplier in the country of export. Making a claim from the UK against an Indian insurer is administratively complex. Arranging your own policy — even when buying CIF — gives you a policy in your name, with a UK-accessible insurer, and a claims process you control.
For most first-time importers buying on FOB terms, the recommendation is simple: arrange independent marine cargo insurance through your freight forwarder or a specialist broker before the vessel departs.
Frequently Asked Questions
Does my freight forwarder automatically insure my cargo?
No. Freight forwarders carry their own liability insurance — but this covers their errors and omissions, not the physical loss or damage of your cargo in transit. These are completely separate policies. Unless you have explicitly arranged marine cargo insurance and received a certificate, your cargo is not insured during the ocean voyage. Always confirm this in writing with your freight forwarder before the vessel departs.
What happens if my granite arrives damaged — how do I make a claim?
Note the damage on the delivery receipt at the UK port before signing. Photograph everything — the container exterior, the packing condition, and each damaged piece — before moving anything. Notify your insurer or broker immediately, as most policies require notification within a specified number of days of discovery. Keep all original documentation: the Bill of Lading, the Commercial Invoice, the Packing List, and the pre-shipment photographs if your supplier provided them. A supplier who sends pre-shipment photographs before container departure — as StoneCrest does as part of the standard export process — gives you a clear baseline to demonstrate the cargo condition at origin, which strengthens a claim significantly.
Is the insured value the FOB price or the retail value of the finished headstones?
Marine cargo insurance covers the commercial value of the goods as shipped — typically the CIF invoice value plus a percentage uplift (usually 10%) to account for any additional costs you would incur replacing the cargo. It does not cover the retail margin you would have made selling the finished headstones. If you want cover that reflects the full commercial consequence of a loss — including lost profit — that requires a separate trade credit or business interruption policy, which is a different product entirely. For most importers, insuring the CIF value plus 10% is the standard and sufficient approach.
StoneCrest advises first-time importers on the standard marine insurance arrangements that work alongside a granite container order from India — including what to ask your freight forwarder and what documentation to keep. Bring the question when you get in touch. It is a straightforward conversation and one worth having before your first container departs.