Tanzanite 1.31 ct | Marquise | Violet Blue | Merelani Hills, Tanzania

SKU: TZS091 Category: Tag: Est. Retail Value: USD $600

Elegant Tanzanite of 1.31 ct from Merelani Hills, Tanzania, cut in a graceful marquise shape and showing a fine violet blue color. A distinctive gemstone with an elongated silhouette, ideal for a refined ring, pendant, or a sophisticated custom jewelry design.

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Description

This 1.31 ct Tanzanite from Merelani Hills, Tanzania combines a classic violet blue color with the elegant proportions of a marquise cut. Sourced from the world-famous and only known Tanzanite deposit, this gemstone offers the unique character and rarity that have made Tanzanite one of the most admired colored stones in fine jewelry.

Fine violet blue color from Merelani Hills
Tanzanite is celebrated for its captivating mix of blue and violet, a color combination that gives the gem its unmistakable identity. This stone displays a refined violet blue appearance with lively and elegant character, making it especially attractive for jewelry that is meant to stand out while remaining tasteful and wearable.

Marquise cut — elongated, elegant, and expressive
The marquise shape is known for its slender outline and pointed ends, creating a graceful and flattering look on the hand or when set into a pendant. Its elongated form often makes the stone appear larger face-up and adds a touch of sophistication to both classic and modern jewelry styles. It is particularly well suited for solitaire rings, vertical pendants, halo designs, and distinctive bespoke settings.

A versatile single stone for fine jewelry
At 1.31 ct, this Tanzanite offers a very practical and appealing size for high-quality jewelry. It has enough presence to become the centerpiece of a ring or pendant, while remaining elegant and easy to wear. Set in white gold or platinum, its cooler tones appear especially crisp and vivid, while yellow or rose gold can bring out the stone’s warmer violet nuances.

A fine Tanzanite from Merelani Hills with elegant marquise proportions and an attractive violet blue color, suitable for a refined custom jewelry piece or a carefully selected gemstone collection.

Additional Information

Certification Options

Every gemstone purchased from Gem Fountain includes a free Gem Fountain Gemstone Report, provided as a PDF file, documenting the key characteristics and authenticity of the stone.

For customers who require independent laboratory verification, we offer the option to add third-party gemstone reports. Upon selection, the gemstone will be submitted to the chosen accredited gemological laboratory. Estimated fees and processing times are as follows:

  • BGL – Brief Report: USD 19
    Processing time: approximately 1–2 business days
  • AIG – Brief Report: USD 38
    Processing time: approximately 7–8 business days
  • LOTUS – Soft Cover Report: USD 128
    Processing time: approximately 7–8 business days

All external reports are optional and can be selected as an add-on prior to shipment. Processing times may vary slightly depending on laboratory workload.

Shipping & Payment

All gemstones are shipped directly from Thailand, one of the world’s leading gemstone trading hubs. We deliver to almost all countries worldwide, using reliable and insured shipping partners to ensure safe and secure delivery. Each order is carefully packaged, and tracking details are provided once the shipment has been dispatched. Delivery times may vary depending on destination and local customs procedures. Any applicable duties, taxes, or import fees are the responsibility of the recipient.

We offer flexible payment options to accommodate our international clientele. Most common payment methods are accepted at checkout. Customers who choose to pay via wire transfer (Wise) receive a 5% discount, which can be selected directly during the checkout process.

Specification

Overview
Total Carat1.31 ct / 1 pcs
Region / MineMerelani Hills
Country of OriginTanzania
Saturation / ToneRich
ShadeViolet
ColorBlue
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)11.90 x 5.60 x 3.20 mm
Traditional Heat

Standard heat treatment to improve color and/or clarity. Stable; no special care required.

Read more about common gemstone treatments →
Refractive Index nα = 1.685 - 1.696, nβ = 1.693 -1.702 and nγ = 1.700 -1.707
Birefringence 0.008 - 0.013
Hardness (Mohs) 6.5
Gravity 3.35 – 3.38
Crystal System Orthorhombic
Chemical Formular [Ca2Al3(SiO4)(Si2O7)O(OH)] + (Cr,Sr)