Blue Paraiba Tourmaline 18.04ct
Blue Paraiba Tourmaline 18.04ct
Blue Paraiba Tourmaline 18.04ct
US$ 16,751
18.04ct Paraiba Tourmaline at US$ 929/ct · certified by GRS
Certification?GRS Certificate Included
| Weight | 18.04 ct |
| Shape / Cut | Oval / Modified Brilliant Cut |
| Color | Blue |
| Clarity | SI-1 |
| Treatment | Unheated |
| Origin | Mozambique |
| Dimensions | 19.35 x 15.72 x 9.62 mm |
| Certificate | GRS / GRS2022-120064 |
Buy with Confidence
01Natural only
Only natural, earth-mined gemstones — never synthetic or laboratory-created.
Since 1985
A second-generation family gemstone house, cutting and selling from Bangkok.
Described as it is
Hand-selected and described accurately, with any known treatment disclosed.
Secure checkout
Encrypted end to end, so your payment details stay protected.
Anatomy of This Stone
02Colour
Blue
Indicative tonal range for this colour family. For reference only — screens vary.
This 18.04ct paraiba tourmaline sits in the blue range of the paraiba tourmaline colour scale.
Clarity
SI-1
This 18.04ct paraiba tourmaline is graded SI-1. Slightly Included: inclusions are visible under magnification and may be faintly visible to the naked eye.
Shape & size
Oval
19.35 × 15.72 × 9.62 mm
This 18.04ct paraiba tourmaline measures 19.35 × 15.72 × 9.62 mm, shown here at true physical size on most screens. Carat weight describes a gemstone's mass rather than its dimensions, so always check the millimetres before buying.
Price
Our price
US$ 16,751
US$ 929 / carat
Retail price
US$ 33,502
STARLANKA buys rough at source and cuts it in-house in Bangkok, so a stone reaches you without the layers of margin a paraiba tourmaline normally collects between the mine and a retail counter. The price shown is the price — no negotiated tiers.
Retail price is our estimate of what a comparable stone typically costs at traditional retail. It is a comparison figure — not a former price at which this stone was offered.
Certification & Shipping
03Certification
GRS certified
This 18.04ct paraiba tourmaline is accompanied by an independent laboratory report from GRS, report number GRS2022-120064.
- GIA
- GRS
- AIGS
- GIT
- ICA GemLab
- GUILD
- AGR
Reports are issued by the laboratory directly and describe the stone independently of us. Our affiliations.
Shipping & returns
Free and fully insured, worldwide
In the box
Sealed gem box, itemised invoice, and the lab report where one accompanies the stone.
Returns
14 days from delivery. We send a prepaid insured label and refund the original payment method.
Voids a return
The stone has been set, the seal broken, or the stone altered or recut.
Dispatched within 1–3 business days. Full detail in our shipping and return policies.
Frequently Asked Questions
04Is this paraiba tourmaline natural or lab-created?
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This STARLANKA paraiba tourmaline (SKU PA0299) is a natural, earth-mined paraiba tourmaline. STARLANKA sells only natural gemstones and does not offer synthetic or laboratory-created stones.
Has this paraiba tourmaline been treated?
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This STARLANKA paraiba tourmaline (SKU PA0299) is unheated — it has not been heat treated. STARLANKA discloses any known treatment or enhancement on every stone it sells.
Does this stone come with a certificate?
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This STARLANKA paraiba tourmaline (SKU PA0299) is accompanied by an independent laboratory report from GRS, report number GRS2022-120064.
What size is a 18.04ct oval paraiba tourmaline?
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This STARLANKA paraiba tourmaline (SKU PA0299) weighs 18.04 carats and measures 19.35 × 15.72 × 9.62 mm. Carat weight describes a gemstone's mass rather than its dimensions, so two stones of equal weight can differ in face-up size depending on shape and cut depth.
How much does shipping cost?
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STARLANKA ships this paraiba tourmaline (SKU PA0299) free of charge and fully insured worldwide, with no minimum order value. Orders are dispatched within 1–3 business days: 2–4 business days in transit to the United States by international express courier, 3–7 business days elsewhere internationally, and 1 business day within Thailand by local express courier.
Can I return this paraiba tourmaline?
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This STARLANKA paraiba tourmaline (SKU PA0299) can be returned within 14 days of delivery for a refund to the original payment method, provided it has not been set into jewellery, had its security seal broken, or been altered or recut. STARLANKA provides a prepaid, insured return label.
