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By Reviewed By Thomas Dahlberg

Topaz Buying Guide - What Factors to Look Out For When Shopping

Buy Topaz Gems
Topaz Gemstones in all Sizes and Colors

In the world of gemstones, topaz stands out for its striking beauty and wide range of uses, making it a favorite among those who appreciate fine jewelry. It comes in an impressive variety of colors, from the popular blue and yellow shades to many others, giving buyers plenty of choices for a lively and distinctive stone. This topaz buying guide breaks down the essential elements to consider, like color, clarity, cut, and carat weight. Whether you're a seasoned gem enthusiast or just starting out, we'll equip you with the knowledge and advice needed to pick the ideal topaz with confidence. Take a look at our selection of loose topaz gemstones available for purchase.

Color

When it comes to colored gemstones, color takes center stage in determining value, and topaz is no exception. In its natural form, topaz often appears colorless, pale yellow, or brown, but it occurs in a broad spectrum of hues. The blue varieties - think London Blue, Swiss Blue, and Sky Blue - are the most widespread and beloved, thanks to enhancement processes. On the pricier side, the warm golden tones of Imperial Topaz stand out as the premium option. And hey, if you're after a budget-friendly alternative to diamonds, clear topaz fits the bill nicely.

London Blue Topaz
London Blue Topaz
Swiss Blue Topaz
Swiss Blue Topaz
Sky Blue Topaz
Sky Blue Topaz
Imperial Topaz
Imperial Topaz
Clear/White Topaz
Clear Topaz

Clarity

Most cut and polished topaz gems achieve at least eye-clean status, meaning no obvious inclusions or flaws show up to the naked eye. Given its abundance and low cost, there's really no reason to settle for anything less than top-notch clarity. That said, untreated Imperial Topaz might have some internal features, but its scarcity keeps it highly prized regardless.

Blue Topaz Gemstones
Topaz Gemstones in all Clarities - See our clarity scale here

Carat

Topaz ranks among the largest gemstones commonly available, with pieces exceeding 5 or 10 carats being standard and surprisingly affordable. Aside from the elusive Imperial Topaz, the cost per carat stays fairly consistent, even as sizes increase.

Buy Blue Topaz Gemstones
Understanding Carat Weight

Cut and Shape

No matter the color, topaz appears in every standard gem shape imaginable - from ovals, rounds, and pears to intricate carvings. Steady supplies and generous sizes allow cutters to experiment freely, often prioritizing the desired form over material conservation.

Gemstones by Shape
Gemstones by Shape

Jewelry Uses

Topaz checks nearly every box for jewelry applications: vibrant hues, diverse cuts and shapes, strong durability, and plentiful large sizes. It's especially suited for standout pieces like bold pendants or eye-catching brooches, though it works well in rings, earrings, and more.

Treatments

Techniques like heating and irradiation have propelled blue topaz varieties - Sky Blue, London Blue, and Swiss Blue - into global popularity. These methods ensure a reliable supply and uniform colors that jewelers can count on.

Price

Even with its impressive appearance, topaz remains one of the most budget-friendly gemstones out there. High-quality blue, pink, and white specimens come at modest prices, while Imperial Topaz commands a higher premium due to its rarity.

Topaz Price Examples

Color Weight Range Price Range / ct
Sky Blue 1 - 5ct $6 - $7
Sky Blue 5ct + $6.5 - $9
Swiss Blue 1 - 5ct $6 - $7
Swiss Blue 5ct + $7 - $15
London Blue 1 - 5ct $6 - $10
London Blue 5ct + $7 - $20
Imperial 1ct + $500 - $800
White 1ct + $7 - $10

Birthstone

Topaz serves as the official birthstone for November, with blue topaz also acting as an alternate for December birthdays.

Wedding Gemstone

Tradition calls for topaz as a gift on the 4th wedding anniversary, while Imperial Topaz marks the 23rd milestone.

Durability

With a rating of 8 on the Mohs hardness scale, topaz offers excellent resistance to scratches and wear, making it a solid pick for daily jewelry.

Summary

Overall, topaz delivers great value as a widely available and cost-effective gem. For the best bang for your buck, go for a vivid blue stone with flawless clarity, weighing at least 4 or 5 carats, in shapes like oval, round, or pear. If you're aiming for something truly showstopping, consider a massive 20- or 30-carat piece - or larger - for an unforgettable pendant.

Quick Guide to Buying Topaz

Color Most Common: Blue/Clear; Rare: Golden
Clarity High / Mostly Eye-Clean
Carat Weight Available in Large Weights / Sizes
Cut All cuts
Price Inexpensive except for Imperial Topaz
Treatments Common / Heating, irradiation
Birthstone November / December
Wedding Stone 4th, 23rd
Jewelry All Types - Pendants/Brooches especially effective
Durability Rated 8 on Mohs Hardness Scale

Frequently Asked Questions

What is topaz?

Topaz is a mineral gemstone known for its hardness and variety of colors, often used in jewelry for its brilliance and affordability.

What are the most popular colors of topaz?

Blue shades like London Blue, Swiss Blue, and Sky Blue are the most sought after, followed by clear and golden Imperial varieties.

Is topaz usually treated?

Yes, many topaz gems, especially blues, undergo heating or irradiation to enhance color, but this is standard and disclosed in the industry.

Can topaz be used in engagement rings?

Absolutely, its durability makes it suitable for rings, though softer than diamonds, so it's great for those wanting color without high costs.

How much does topaz cost?

Most types range from $6 to $20 per carat, but rare Imperial Topaz can go up to $800 per carat or more.

Enlarged Gemstone Image