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Faelight Cut Natural Sky Blue Topaz Oval 6x8 mm Loose Gemstone, 1.8 ct

$195.00

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Gemstone: Sky Blue Topaz

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Size Chart

Find your ring size

Print at 100% / Actual Size — turn off "fit to page" or scaling.
Check the printed ruler measures exactly 80 mm.

Method A — Measure a ring

Lay a ring you own over the circles. The matching circle is your size.

Method B — Finger strip

Cut out the strip, wrap it around your finger, thread the end through the slit, and read your size.

Open the printable sizer (PDF)

1. Calibrate your screen — pick a reference object, hold it against the outline, and drag until the widths match exactly. On a phone, a coin is easiest — a card is often wider than the screen.

Bank card — hold vertically

2. Match a ring you own — drag until the circle fits just inside one of your rings.

US 6 · 16.5 mm · UK L½ · EU 52

This on-screen tool is a close guide, not a guaranteed exact fit. For certainty, order a ring sizer.

US	Diameter	Circumf.	UK/AU/IE	EU

UK, Australia & Ireland share the letter system. European sizes are approximate conversions.

In Stock Free Delivery Est. Oct 27

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Product Description

A loose natural sky blue topaz, oval 6 x 8 mm, about 1.8 carats, faceted in the Faelight™ Cut, Aquamarise’s concave fantasy cut. The color is a pale, watery sky blue, lighter than Swiss blue and far lighter than London blue. This is the exact stone in the photo and video, unset and ready to set.

Natural Sky Blue TopazOval 6 x 8 mm1.8 ct (approx.)Faelight™ CutMohs 8

The Faelight Cut

The Faelight Cut carves radiating curved grooves into the underside of the stone instead of flat facets. Light reflecting off those curves breaks into fine rays, so the stone reads as a starburst from across a room and as bright lines up close. The pattern is cut into the stone and does not wear off. More on the family in our guide to fantasy-inspired engagement rings.

The Natural Sky Blue Topaz

Topaz is a natural stone at Mohs 8, hard enough for daily wear. Like virtually all blue topaz, the sky blue color comes from irradiating and heating colorless natural topaz, a permanent treatment that is standard in the trade. Topaz is a November birthstone; see the topaz meaning guide.

This Stone

The outline is a oval: the classic rounded outline, the easiest shape to set. It measures 6 x 8 mm, about 1.8 carats by the cutter’s figure; the millimeters are what a setting is built to.

Same stone, other outlines: kite 7 x 10 mm, kite 6 x 9 mm, long hexagon 5 x 9 mm, marquise 5 x 10 mm, coffin 6 x 10 mm, rectangle 6 x 8 mm.

Same oval 6 x 8 mm in other stones: pink sapphire, blue sapphire, green sapphire, lavender sapphire, ametrine.

Setting It

Leave the back open: prongs, an open-backed bezel or a cathedral with an open gallery keep the starburst alive, while a closed back dims it. Aquamarise can set this stone into a design built around it; start at custom engagement rings or read how to build a custom engagement ring. The rest of our unset stones are in loose gemstones.

Specifications

Gemstone Natural Sky Blue Topaz
Origin Natural
Cut Faelight™ Cut, concave fantasy cut
Shape Oval
Dimensions 6 x 8 mm
Carat weight about 1.8 ct
Color sky blue
Hardness Mohs 8
Treatment Natural topaz; blue color from standard irradiation and heat treatment
Quantity One stone, as photographed
Certificate None included
SKU S-041

Care

Warm water, mild dish soap and a soft brush worked into the grooves on the underside, then rinse and dry on a lint-free cloth. Topaz has one direction of cleavage, so shield the points in the setting and skip the ultrasonic. Our guide to cleaning jewelry at home covers the routine.

Frequently Asked Questions

What is the Faelight Cut?

A concave fantasy cut. The underside of the stone is carved with radiating curved grooves instead of flat facets, so light reflects off the curves and breaks into fine starburst rays. The pattern is cut into the stone and does not wear off.

Is this natural topaz?

Yes. It is mined topaz, not a synthetic and not glass. Like virtually all blue topaz on the market, its sky blue color comes from irradiating and heating natural colorless topaz, a permanent treatment that is standard in the trade.

Is the photo the stone I will receive?

Yes. This listing is one individual stone, photographed and filmed on its own. If it sells and is cut again, the replacement is the same size and color but a different stone.

What happens if it shows as sold out?

It can usually be cut again to order in the same size and color; allow roughly three to five weeks. Contact us before ordering if timing matters.

Can Aquamarise set this stone into a ring or pendant?

Yes. Contact us with the setting you have in mind; we build the design around the stone's exact dimensions. Open-backed settings suit this cut best because the starburst lives in the pavilion.

Does it come with a certificate?

No. No independent laboratory report is included. The stone type, origin, dimensions and approximate carat weight are stated on this page; an independent appraisal can be arranged after purchase.

How durable is it for daily wear?

Topaz is 8 on the Mohs scale, hard enough for daily wear. It has one direction of cleavage, so protect the points and the girdle with the setting and avoid sharp knocks.

Properties of Topaz

Shipping & Delivery

Engraving

Free US shipping

Hassle-free returns

Lifetime warranty

Ethically sourced

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The latest additions to the collection — new stones, new settings, made in the same workshop as everything else here. See what is new in.

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What Makes Aquamarise® Different

Two rings with blue stones on a gray stone surface

Ethically Sourced, Always

Each gemstone is meticulously hand-selected for its brilliance and clarity, responsibly sourced from trusted partners around the world.

Built to Be Worn, Not Just Admired

Every piece is expertly crafted and finished to endure daily wear, combining lasting strength with enduring beauty beyond the display case.

Specifically Designed for You

Every Aquamarise® creation is thoughtfully designed for those who view jewelry as a personal expression. Never mass-produced, each piece carries a sense of meaning and individuality.

Crafted to Last. Not Just Sparkle.

While most jewellers focus on appearance, Aquamarise® focuses on craftsmanship, durability, and pieces you will treasure forever.

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Personalized Engraving
Craftsmanship Guarantee
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Frequently Asked Questions

The metal is named in the selector above. Across the collection we use three:

925 sterling silver, finished with rhodium — the same precious-metal finish used on white gold, and one of the hardest metals used in jewellery.
14K gold vermeil — real 14K gold over a solid sterling silver core, at the 2.5-micron minimum the US standard requires. No brass, no base metal.
Solid 10K, 14K and 18K gold and platinum, made to order in 3–6 weeks.

Our Precious Metal Guide compares them side by side.

For rings, measure at home with our Ring Size Chart, or use the Find my ring size link beside the Add to Cart button. If you are between sizes, size up. For necklaces, the chain length is listed in the description — 18" falls just below the collarbone and is the length most people choose.

If the fit is not right when it arrives, size exchanges on rings are free — send it back within 30 days unworn and we will send the correct size out. No fee, no forms. Engraved pieces are the one exception, as each is cut specifically for you.

On most designs, yes — where engraving is available, a text field appears with the options above. Standard laser engraving is complimentary: up to 16 characters on women’s rings and 25 on men’s, set in Arial, with a selection of symbols included at no extra cost. Custom fonts and symbols are $25 and are arranged before you order.

See the Engraving page for examples. Engraved pieces are final sale, so check your wording carefully — we engrave exactly what is entered.

Yes. Every stone we set is a real gemstone, hand-picked for its colour and clarity and responsibly sourced. You can see exactly which stone you are choosing in the selector above.

Some of our designs use lab-grown stones or moissanite — just as beautiful, harder wearing, and kinder on the budget. Whenever that is the case we say so right in the product description, so you always know exactly what you are getting.

Warm water, a drop of mild washing-up liquid and a soft toothbrush around the setting. Rinse well and dry thoroughly with a soft cloth — moisture left sitting on any finish is what dulls it fastest.

Skip the silver dips and abrasive polishing compounds sold for untreated metal; the rhodium finish is doing the work here, and those products strip it rather than clean it. Put your jewellery on last, after perfume and lotion, and take it off before swimming, cleaning or exercising. Our Jewelry Care Guide has the full routine.

Sterling silver and vermeil are kept in stock and leave our workshop in 1–4 business days; engraved orders sit at the longer end while each one is laser-cut, and solid gold and platinum are made to order in 3–6 weeks. The estimated delivery date shown above is calculated for your order.

US shipping is free and fully insured, in gift-ready packaging. Full timings are on our Shipping & Delivery page.

Return or exchange it within 30 days of delivery, unworn and in original condition. Size exchanges on rings are free. Engraved pieces are final sale, as each is cut specifically for you, and pierced earrings must be unworn and in their original sealed packaging.

Full terms are on our Returns & Refunds page, and every piece carries our lifetime warranty against manufacturing defects.

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