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8.56 carats Natural Blue-purple Tanzanite | Oval Cabochon

This tanzanite is defined first by blue, then by the way its oval proportions let that quality breathe.

Gemstone $890.00

See this exact gemstone in compatible SARATTI settings.

This Natural Blue-purple Tanzanite presents a saturated blue-purple body colour with a strong blue presence and subtle violet undertones. As the cabochon moves in the light, gentle directional variation between blue and purple becomes visible, giving the stone a softly pleochroic appearance. Face-up, it shows a rich and luminous impression with natural tonal variation beneath the polished dome.

Fashioned as an oval cabochon, the gemstone has a smooth, rounded dome and a continuous polished surface rather than faceted planes. The cabochon cut encourages broad, even light movement across the stone, favouring the blue body colour while allowing purple undertones to emerge at changing angles. Visible natural internal characteristics contribute to the layered depth seen within the stone.

Weighing 8.56 carats and measuring 13.3 × 10.2 mm, this Tanzanite has a substantial face-up presence within a balanced oval outline. Its smoothly domed profile would suit a pendant, brooch or earrings, and it may also be used in a carefully protected bespoke ring design. A bezel, halo or guarded setting would offer appropriate support for this cabochon gemstone.

Characteristics
  • Shows a blue-purple colour with a blue-dominant face-up appearance and subtle violet undertones.
  • Directional variation between blue and purple is visible as the stone moves in light.
  • Weighing 8.56 carats, the gemstone offers a substantial yet balanced scale.
  • Measuring 13.3 × 10.2 mm, it presents a compact oval outline with good face-up presence.
  • The gemstone is fashioned in an oval shape.
  • Its cabochon cut creates a smooth domed surface and broad, even internal light movement.
  • Visible natural internal characteristics are present within the stone and contribute to its individual appearance.
  • Heat Treatment has been applied.
  • The gemstone originates from Tanzania.
  • Ranking 6 to 7 on the Mohs scale, Tanzanite should be protected from impact, abrasion and sudden temperature changes.
  • This stone is well suited to pendants, brooches, earrings or carefully protected bespoke ring settings.
  • It is accompanied by a SARATTI Gemstone Identification Report.
Gemstone Details

Gemstone Type: Natural Blue-purple Tanzanite
Species: Zoisite
Variety: Natural Tanzanite
Carat Weight: 8.56 carats
Shape: Oval
Cut: Cabochon
Colour: Blue-purple
Dimensions: 13.3 × 10.2 mm
Pleochroism: Visible directional blue-purple variation
Treatment: Heat Treatment
Origin: Tanzania
Certificate: SARATTI

December Birthstone

Tanzanite is recognised as a December birthstone and is associated with the 24th wedding anniversary. Its blue-violet appearance and single geographic source give it a distinct place within modern coloured gemstones.

Design Invitation

Its blue-purple colour, smoothly domed oval profile and 8.56-carat scale would suit a pendant, brooch or carefully protected centre-stone setting. The Tanzanite may be acquired loose or developed into a bespoke jewel through SARATTI’s atelier.

Availability

Please inquire about availability before checkout.

Your gemstone is set into the design you choose. Every pairing is reviewed by a specialist before production begins.

HANDPICKED

Chosen with judgement — looking beyond the certificate to colour, character, proportion and presence.

HANDCRAFTED

Each piece is considered around the stone, with proportion, setting, comfort and finish working together.

HEARTFELT

Personal guidance and thoughtful creation shaped around the person, the moment and what the piece is meant to become.

CARED FOR, AFTERWARDS

Secure delivery and ongoing care long after the piece leaves our hands.

This Natural Blue-purple Tanzanite presents a saturated blue-purple body colour with a strong blue presence and subtle violet undertones. As the cabochon moves in the light, gentle directional variation between blue and purple becomes visible, giving the stone a softly pleochroic appearance. Face-up, it shows a rich and luminous impression with natural tonal variation beneath the polished dome.

Fashioned as an oval cabochon, the gemstone has a smooth, rounded dome and a continuous polished surface rather than faceted planes. The cabochon cut encourages broad, even light movement across the stone, favouring the blue body colour while allowing purple undertones to emerge at changing angles. Visible natural internal characteristics contribute to the layered depth seen within the stone.

Weighing 8.56 carats and measuring 13.3 × 10.2 mm, this Tanzanite has a substantial face-up presence within a balanced oval outline. Its smoothly domed profile would suit a pendant, brooch or earrings, and it may also be used in a carefully protected bespoke ring design. A bezel, halo or guarded setting would offer appropriate support for this cabochon gemstone.

Why we chose this stone

Blue at 8.56-carat.

This tanzanite deserves consideration if your priority is blue. The added 8.56 ct gives it a second reason to stand apart. The oval proportions keep the overall impression balanced rather than busy.

  • BLUE
  • 8.56 CT
  • OVAL

Gemstone details

Gemstone Type
Natural Blue-purple Tanzanite
Species
Zoisite
Variety
Natural Tanzanite
Carat Weight
8.56 carats
Shape
Oval
Cut
Cabochon
Color
Blue-purple
Dimensions
13.3 × 10.2 mm
Pleochroism
Visible directional blue-purple variation
Treatment
Heat Treatment
Origin
Tanzania
Enquire about this stone
8.56 carats Natural Blue-purple Tanzanite | Oval Cabochon
Loose gemstone measured before anything is drawn, then hand-set | SARATTI Gemstone hand-set in fine jewellery, seat cut to its own outline | SARATTI

HANDCRAFTED

Measured first,
designed second.

Every gemstone is measured before anything is drawn. Seat cut to its own outline, claws closed by one setter, the finished piece checked under magnification. A ring, a pendant, a pair of earrings, or something not made before.

Discover our craftsmanship

Your next step

Two ways to continue, and no hurry to choose.

Have it set

Choose a setting and the atelier builds it around this stone's measurements. You see images of the finished piece before it travels to you.

Create with this stone

Take the stone as it is

The stone travels loose, with its report, insured and signed for. Set it with your own jeweller, or come back to us whenever you are ready.

Purchase the stone alone
SARATTI signature presentation SARATTI signature presentation
Signature Presentation

Every SARATTI piece is prepared in our signature presentation, carefully protected for a refined reveal and secure delivery.

Complimentary Insured Shipping

SARATTI offers complimentary insured express shipping on all orders. Each piece is carefully prepared, protected, and sent through trusted express couriers.

Learn More
Ask a SARATTI Advisor

Speak with a SARATTI concierge for help with gemstones, sizing, personalization, delivery, or bespoke adjustments before placing your order.

Responsibly Chosen Materials

Every SARATTI piece is created with considered materials, selected stones, and careful craftsmanship. We choose quality with intention, so each jewel feels meaningful from selection to final delivery.

Size Guide

Use the SARATTI size guide to choose the right fit for your ring, bracelet, necklace, or made-to-order piece.

Before you decide

Questions worth asking.

Is this the exact gemstone I will receive — and can I see more of it?

Yes. The gemstone shown on this page is the individual stone you are considering — not a representative image from a parcel.

We photograph and film the actual stone and do everything possible to show its color, proportions and character faithfully. Even so, gemstones can respond differently to daylight, warm interior light and different screens.

If you are uncertain, we can provide additional photographs or video and, where useful, reshoot the stone under different lighting or from another angle before you decide.

Can I confirm the gemstone is still available before I proceed?

Of course.

Send us the product link or reference and our concierge can confirm availability before you proceed.

For an important purchase, we would rather confirm first than have you make a decision around a stone that has already been spoken for.

How do I know which setting will suit this gemstone?

The builder presents settings intended to work with the gemstone you have selected.

Before production begins, the pairing is reviewed for proportion, security and suitability.

If we believe another setting, proportion or approach would serve the stone better, we will tell you before anything is made. The setting should serve the gemstone — not simply accommodate it.

What happens after I choose my gemstone and setting?

We confirm the important details with you before production begins.

That includes your gemstone, setting, metal, side stones where relevant, size, engraving and any personal details.

Nothing enters production until the final specification has been reviewed and approved.

Will I see the finished piece before it is sent?

Yes.

Once your piece is complete, it is photographed and filmed with your gemstone set into it.

Those images are sent to you before dispatch, so you can see the finished jewel before it leaves SARATTI.

How long will my piece take?

Made-to-order pieces generally require around three to four weeks from final approval to completion.

A loose gemstone purchased on its own can usually be prepared for dispatch much sooner.

If you are working towards a proposal, anniversary, birthday or travel date, tell us before ordering. We will let you know what is realistically possible rather than promise a date we cannot honour.

How will my order be delivered?

Your order is sent by insured courier with tracking and appropriate delivery security.

The route and carrier depend on destination and value.

Where duties or local taxes may apply, our concierge can explain the available delivery options before dispatch.

Can I return a loose gemstone?

A loose gemstone may be returned within fourteen days of delivery provided it remains unworn, unset and unaltered, with its packaging and documentation intact.

Please contact us before sending anything back so the return can be arranged securely.

What happens once the gemstone has been set?

A jewel created around your selected gemstone is made specifically for you.

Once the final specification has been approved and production has begun, the gemstone and materials are committed to your piece.

That is why we take time to confirm the details with you before making begins.

What if I am still unsure?

Then do not rush the decision.

We can help you compare this gemstone with another, look again at color or proportion, send additional imagery, discuss a setting or simply talk through what matters most to you.

The right stone should feel considered — not hurried.

What happens after I receive my piece?

Our relationship does not end at delivery.

SARATTI provides ongoing care for the jewelry we create, including inspection, cleaning and appropriate maintenance support as the piece is worn over time.

If anything ever concerns you, speak with us before attempting repair or alteration elsewhere.