16.5 Ct Natural Swiss Blue Topaz | Step Cut | VVS–Eye Clean | Heated | Brazil

16.5 Ct Natural Swiss Blue Topaz | Step Cut | VVS–Eye Clean | Heated | Brazil

$250.00 USD
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16.5 Ct Natural Swiss Blue Topaz | Step Cut | VVS–Eye Clean | Heated | Brazil

16.5 Ct Natural Swiss Blue Topaz | Step Cut | VVS–Eye Clean | Heated | Brazil

$250.00 USD
  • Brand: Gemstone Insider
  • SKU: TOP-100
  • Type: Loose Gemstones
1 left
Return policy

Return and Refund

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@gemstoneinsider.com. 

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@gemstoneinsider.com. 

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. 

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at info@gemstoneinsider.com. 

Shipping

Shipping and Delivery

SHIPPING & DELIVERY – GEMSTONE INSIDER

Order Processing Time

  • Verification: Orders are verified within 24–48 hours for your security.

  • Certificates: Certification takes 2–3 business days. If sent to labs post-order, add 2–3 more days.

  • Retail Shipping: Ships after verification or certification (for orders over $1000).

  • Wholesale / Pre-orders: Ship within 7–15 days, depending on stone availability.

Shipping Locations
Orders ship from: 

  • Dubai

  • Bangkok, Thailand

  • Pakistan

Courier Services

  • Small Orders: Sent via DHL, FedEx, or similar.

  • Bulk Orders (100kg+): Sent via air cargo or sea freight (economical for large international orders).

Shipping Rates

  • Free Shipping:

    • Orders $300+ (under 500g)

    • Orders $1000+ (up to 1kg)

  • Standard Shipping: Starts at $15 USD and varies by weight & location.

  • High-Cost Zones: Russia, Australia, South Africa may have different charges.

Delivery Time

  • Most orders arrive within 7–15 business days after dispatch.

  • Remote areas may take longer; include a nearby landmark for faster delivery.

  • Delays may occur due to customs, holidays, or weather.

Tracking Your Order

  • Tracking is emailed once shipped. Allow 1 day after dispatch for activation.

  • Need help? Email: info@gemstoneinsider.com

Customs & Import Duties

  • Buyers are responsible for customs clearance.

  • We assist by providing required documentation.
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Key Product Features

SpecificationDetails

Stone Name

Topaz

Gems Type

Semi- Precious Stones

Total Weight

16.5 carats

Carat Weight

1 to 2 Carat, 2 to 3 Carat, 3 to 4 Carat, 4 to 6 Carat, 6 to 8 Carat, 8 to 10 Carat, 10 to 15 Carat, and 15 to 20 Carat

Dimension (w × h × t)

16*11*10mm

Shapes / Cut

Step Cut

Color of Gems

Blue

Clarity

VVS and Eye Clean

Origin

Brazil

Treatments

Heated

Birthstones

November

Category Types

Loose Stones

Deal Type

Single
SpecificationDetails

Stone Name

Topaz

Gems Type

Semi- Precious Stones

Total Weight

16.5 carats

Carat Weight

1 to 2 Carat, 2 to 3 Carat, 3 to 4 Carat, 4 to 6 Carat, 6 to 8 Carat, 8 to 10 Carat, 10 to 15 Carat, and 15 to 20 Carat

Dimension (w × h × t)

16*11*10mm

Shapes / Cut

Step Cut

Color of Gems

Blue
SpecificationDetails

Clarity

VVS and Eye Clean

Origin

Brazil

Treatments

Heated

Birthstones

November

Category Types

Loose Stones

Deal Type

Single

Product Description

Natural Swiss Blue Topaz – 16.5 Carats

This listing offers a single loose Swiss Blue Topaz weighing 16.5 carats, cut in a rectangular step cut. The stone measures 16×11×10mm and displays a medium aqua-blue color with strong clarity through its step-cut facets. Origin is Brazil, and the stone has been heat-treated — a standard and stable industry process used to produce the Swiss blue color from colorless or pale natural topaz.

Stone Details

  • Stone Name: Topaz – Swiss Blue
  • Total Weight: 16.5 carats
  • Carat Range: 1–20 carats (filter range)
  • Dimensions: 16 × 11 × 10 mm
  • Cut / Shape: Step Cut (Rectangular)
  • Color: Aqua Blue (Swiss Blue)
  • Clarity: VVS – Eye Clean
  • Treatment: Heated
  • Origin: Brazil
  • Deal Type: Single Stone
  • Stone Type: Loose / Unmounted
  • Gem Classification: Semi-Precious Stone
  • Birthstone: November
  • Intended Use: Jewelry / Ornament Setting

About Swiss Blue Topaz

Swiss Blue is a specific color grade within the blue topaz category, distinguished by its medium-intensity aqua tone — lighter than London Blue but deeper than Sky Blue. The color is produced through a combination of irradiation and heat treatment applied to natural colorless or pale topaz from Brazil. This treatment is permanent and industry-standard. The step cut used here emphasizes the stone’s transparency and depth of color by reflecting light through its large flat table and parallel facets.

Frequently Asked Questions

What is the difference between Swiss Blue, Sky Blue, and London Blue topaz?
Sky Blue is the lightest shade, Swiss Blue is a medium vivid aqua, and London Blue is the darkest and most saturated. The difference comes from the intensity of treatment applied during production.

Is heat-treated topaz less valuable than untreated topaz?
Heat treatment is the accepted standard for all blue topaz on the market — natural blue topaz is extremely rare. Treated stones are stable, widely used in fine jewelry, and priced based on size, cut quality, and clarity.

What jewelry settings work best for a large step-cut topaz?
Step-cut stones pair well with bezel and four-prong settings that expose the stone’s table. For a 16×11mm size, a cocktail ring, pendant, or brooch setting is most practical.

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