Watermelon Maine Tourmaline & Diamond Necklace - Cross Jewelers
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Necklace Details

Name: Watermelon Maine Tourmaline & Diamond Necklace

Style#: G5817

Precious Metal: 14K Yellow & White Gold

Gem: Watermelon Maine Tourmaline slice = 21.03 carats (23.8×25.5mm)

Gems: 3 Diamonds = .23 carat total weight

Measurement: 30.7mm (1  3/16″) from top of diamond to bottom of tourmaline

Chain: 18″ 14K Yellow Gold

Price: $3,985

AU 40


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$3,985

Watermelon Maine Tourmaline & Diamond Necklace

Style #: G5817

I could say this about a hundred things on our website: this is rare, this 1-inch watermelon crystal is choice, and highly desirable.

The fact that we have this Watermelon Maine tourmaline necklace today is almost impossible. This is a watermelon slice of Maine tourmaline from the 1972 discovery on Plumbago Mountain in Newry, Maine. The crystal this was cut from was probably 5 inches long and 1 inch wide. The core is pink. The perimeter has a rim of green.

I wish we had 50 slices this size and as fine as this. I’m happy to have this one. The size is perfect for a necklace.

Maine Tourmaline, A Maine Story
An American Gem

First discovered in 1820 and in subsequent finds over the years, these early discoveries put Maine on the world map as a source for high-quality tourmaline gems. A major discovery in 1972 on Plumbago Mountain in Newry, Maine established Maine as a significant world source of fine tourmaline gemstones.

Cross recognized the historical significance of this find and began working closely with the miners of these magnificent gems. The close partnership continues today with the ongoing discoveries in Maine’s western mountains.

100% Natural

We go to Maine’s gem mines. We know the miners. We know the gem cutters. We guarantee our tourmaline to be from Maine and is 100% natural. Cross maintains the largest collection of fine Maine tourmaline jewelry in the world.

Window of Opportunity

Fifty years have passed since the major 1972 tourmaline find in Newry, Maine where they found 3.5 million carats of tourmaline crystals. Over the years we bought more than we sold knowing that gem finds don’t last forever. There are now colors, sizes, and shapes that are extremely rare and, in some cases, no longer available. If you see something you love it’s best to act quickly. There’s no guarantee another gem like this one exists.

Case in point: In 2007 there was a find of tourmaline in Newry, Maine called Eureka Blue. People loved the color. The gems sold quickly, but the find was small and the mining only lasted a few seasons. Within three years of the discovery, all the large Eureka gems had sold. We still get calls from people who are now ready to buy. What they want, however, simply no longer exists from that find in 2007.

Gem finds are rare, especially in North America. Maine tourmaline is a piece of Maine and American history, it’s a connection to a place we all love, an exquisite creation of nature. Today, there is a rare opportunity to own a bit of Maine/American pride and heritage, and history in choosing a piece of Maine tourmaline jewelry.

Necklace Details

Name: Watermelon Maine Tourmaline & Diamond Necklace

Style#: G5817

Precious Metal: 14K Yellow & White Gold

Gem: Watermelon Maine Tourmaline slice = 21.03 carats (23.8×25.5mm)

Gems: 3 Diamonds = .23 carat total weight

Measurement: 30.7mm (1  3/16″) from top of diamond to bottom of tourmaline

Chain: 18″ 14K Yellow Gold

Price: $3,985

AU 40

  1-800-433-2988  |  Monday - Friday 9:30 am to 5:00 pm, EST

Shipping Details

Orders under $2000 are shipped via FedEx Standard or US Priority Mail. Orders over $2000 are shipped via FedEx Priority Overnight or US Express Mail, and are delivered as Signature Required packages. To arrange to have a package held at a convenient pick-up location, please call to place your order (800-433-2988).

Returns & Exchanges

Valentine’s 2026 Return & Exchange Extension

Our year-round return period is 30 days.

Anything you purchase January 1 – February 14, 2026 comes with full return/exchange privileges through March 15, 2026. Our goal is to make it easy with a full 30 days for exchanges or returns following Valentine’s Day.

Jewelry must be returned to us in original condition, unused and unworn. Special orders made to a customer’s specifications are not returnable.

Returns are refunded in the form of the original payment: credit card to credit card, check to check. You may also choose to have the refund put on a Cross gift card for future jewelry shopping.

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