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10.00 carats Natural Blue-Violet Tanzanite | Heart

A single gemstone, ready to become the piece you choose.

Gemstone $8,800.00

See this exact gemstone in compatible SARATTI settings.

This 10.00-carat Natural Tanzanite presents a concentrated blue-violet face-up appearance, with brighter blue flashes moving through the outer facets and deeper violet tones becoming visible toward the centre. The supplied views show noticeable directional variation between blue and violet as the stone changes orientation, giving the heart shape a layered and dimensional appearance without relying on an exaggerated colour designation.

Fashioned as a faceted heart, the gemstone has rounded upper lobes, a defined central cleft and a tapered lower point. A broad central table is surrounded by multiple reflective facets that produce alternating areas of bright blue light and deeper violet reflection. The arrangement gives the stone visible internal depth while preserving the recognisable proportions and symmetry of its heart-shaped outline.

Weighing exactly 10.00 carats and measuring 14.3 × 13.4 × 7.8 mm, the Tanzanite has substantial scale with a broad face-up presence. Its heart profile would translate particularly well into a pendant or a bespoke centre-stone design; if used in a ring, a protective halo, bezel or carefully guarded prong setting would help reduce exposure to impact.

Characteristics
  • Displays a blue-violet face-up appearance, with brighter blue around the outer facets and deeper violet reflections through the central area.
  • Directional blue-to-violet variation is visible across the supplied views, reflecting Tanzanite's pleochroic character.
  • Weighing 10.00 carats, the gemstone presents substantial physical scale.
  • Measuring 14.3 × 13.4 × 7.8 mm, the stone has a broad heart-shaped face-up outline with notable depth.
  • Fashioned in a heart shape with rounded lobes, a defined cleft and a tapered point.
  • Faceting creates alternating bright blue reflections and deeper violet areas while maintaining visible internal depth.
  • Heat treatment is applied as the standard treatment disclosure for this Tanzanite.
  • Origin is recorded as Tanzania.
  • Ranking approximately 6 to 7 on the Mohs scale, Tanzanite should be protected from impact and abrupt temperature changes.
  • Particularly suited to pendants and carefully protected bespoke centre-stone settings.
  • Accompanied by SARATTI Gemstone Identification Report 1245118.
Gemstone Details

 Gemstone Type: Natural Tanzanite
Species: Zoisite
Variety: Natural Tanzanite
Carat Weight: 10.00 carats
Shape: Heart
Cut: Faceted
Colour: Blue-Violet
Dimensions: 14.3 × 13.4 × 7.8 mm
Pleochroism: Directional blue-violet variation visible
Treatment: Heat Treated
Origin: Tanzania
Certificate: SARATTI Gemstone Identification Report 1245118

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.

For care, use warm, soapy water and gentle handling. Avoid ultrasonic and steam cleaning, abrupt temperature changes and situations where the stone may receive a hard impact.

Design Invitation

Its blue-violet appearance, heart-shaped profile and substantial 10.00-carat scale would suit an expressive pendant or a carefully protected bespoke centre-stone design. The Tanzanite may be acquired loose or developed into a bespoke jewel through SARATTI's atelier.

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 10.00-carat Natural Tanzanite presents a concentrated blue-violet face-up appearance, with brighter blue flashes moving through the outer facets and deeper violet tones becoming visible toward the centre. The supplied views show noticeable directional variation between blue and violet as the stone changes orientation, giving the heart shape a layered and dimensional appearance without relying on an exaggerated colour designation.

Fashioned as a faceted heart, the gemstone has rounded upper lobes, a defined central cleft and a tapered lower point. A broad central table is surrounded by multiple reflective facets that produce alternating areas of bright blue light and deeper violet reflection. The arrangement gives the stone visible internal depth while preserving the recognisable proportions and symmetry of its heart-shaped outline.

Weighing exactly 10.00 carats and measuring 14.3 × 13.4 × 7.8 mm, the Tanzanite has substantial scale with a broad face-up presence. Its heart profile would translate particularly well into a pendant or a bespoke centre-stone design; if used in a ring, a protective halo, bezel or carefully guarded prong setting would help reduce exposure to impact.

Gemstone details

 Gemstone Type
Natural Tanzanite
Species
Zoisite
Variety
Natural Tanzanite
Carat Weight
10.00 carats
Shape
Heart
Cut
Faceted
Color
Blue-Violet
Dimensions
14.3 × 13.4 × 7.8 mm
Pleochroism
Directional blue-violet variation visible
Treatment
Heat Treated
Origin
Tanzania
Enquire about this stone
10.00 carats Natural Blue-Violet Tanzanite | Heart
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.