The Gem Vault

The Gem Vault For over 40 years, The Gem Vault is New Jersey's premiere location for fine custom jewelry, colored gemstones, and diamonds.

08/22/2026

A glimpse into our jewelry designer
re-sizing a ring 💍

One of the many services we offer at The Gem Vault ✨

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08/21/2026

We’re obsessed…isn’t this custom gemstone so cute? 🥰

08/20/2026

Why have 1 opal, when you can have 2 opals? 😍

If you could add an opal piece to your collection, comment if you would choose a ring, necklace, or earrings? ✨

Sapphire Sale 50% OFF While Supplies Last We appreciate how much our customers love sapphire jewelry!Today until August ...
08/19/2026

Sapphire Sale 50% OFF While Supplies Last

We appreciate how much our customers love sapphire jewelry!

Today until August 22nd, enjoy 50% OFF selected jewelry pieces while they are still available when shopping in-person.

This sale is running shorter than expected, so don’t miss the chance to add beautiful sapphire jewelry to your collection!

✨ Featured Piece of the week ✨Vibrant color with intricate details.This one of a kind 1.98 ct Opal & 0.08 ct Diamond pen...
08/19/2026

✨ Featured Piece of the week ✨

Vibrant color with intricate details.

This one of a kind 1.98 ct Opal & 0.08 ct Diamond pendant in gold is the perfect addition to your collection. It has not just one opal, but two opals paired with gold leaves with the touch of diamonds.

If you loved learning about opals yesterday, this piece will make you fall in love with the beauty of opals.

🩵 1.98 ct Opal
💎 0.08 ct Diamond
✨ 14k Yellow Gold
💲$2,400

If you’re looking for a pendant that’s as unique as this one, you won’t want to miss out on this one.

Visit The Gem Vault to see this beautiful pendant in-person before it’s gone. One of a kind means once it’s sold, it’s gone for good.

SWIPE through our options for sapphire pieces available now and tomorrow along with custom rings we can create for you! ...
08/18/2026

SWIPE through our options for sapphire pieces available now and tomorrow along with custom rings we can create for you!

08/18/2026

✨ Gem of the week ✨

This week’s spotlight focuses on a unique 6.59 cts Ethiopian Opal. This rare beauty is known for its vibrant flashes of color, which is found in central and northern Ethiopia.

✨ 6.59 cts Ethiopian Opal
💲$850.00

Visit us at The Gem Vault or send us a message to learn more about this colorful gem before it’s gone!

Sapphire comes in many colors beyond the typical blue sapphire 🌈Discover the beauty of sapphire jewelry at our store whe...
08/17/2026

Sapphire comes in many colors beyond the typical blue sapphire 🌈

Discover the beauty of sapphire jewelry at our store when shopping in-person while our sapphire jewelry collection is 50% OFF until August 22nd.

08/14/2026

Check out our selection of natural marquise diamonds available today 8/14 and tomorrow 8/15!

Shop in-person or call us if interested

Address

23 Turntable Junction
Flemington, NJ
08822

Opening Hours

Wednesday 10am - 5pm
Thursday 10am - 5pm
Friday 10am - 5pm
Saturday 10am - 5pm

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