Magenta Purple Umbalite Garnet 13.00ct - 15x13mm
Magenta Purple Umbalite Garnet 13.00ct - 15x13mm
Magenta Purple Umbalite Garnet 13.00ct - 15x13mm
US$ 2,222
13ct Umbalite Garnet at US$ 171/ct
Certification?
| Weight | 13 ct |
| Shape / Cut | Cushion / Fine Step Cut |
| Color | Magenta Purple |
| Clarity | VS |
| Treatment | None |
| Origin | Tanzania |
| Dimensions | 15.11 x 12.58 x 8.52 mm |
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
Magenta Purple
Indicative tonal range for this colour family. For reference only — screens vary.
This 13ct umbalite garnet sits in the magenta purple range of the umbalite garnet colour scale.
Clarity
VS
This 13ct umbalite garnet is graded VS. Very Slightly Included: inclusions are visible under 10x magnification but not to the naked eye.
Shape & size
Cushion
15.11 × 12.58 × 8.52 mm
This 13ct umbalite garnet measures 15.11 × 12.58 × 8.52 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$ 2,222
US$ 171 / carat
Retail price
US$ 5,333
STARLANKA buys rough at source and cuts it in-house in Bangkok, so a stone reaches you without the layers of margin a umbalite garnet 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
No lab report supplied
This 13ct umbalite garnet is not currently accompanied by an independent lab report. One can be added before it ships — choose a laboratory from the certification option in the buy box above. Certification is optional: many clients buy on our own description, which stands behind the 14-day return either way.
- 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 umbalite garnet natural or lab-created?
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This STARLANKA umbalite garnet (SKU RD0843) is a natural, earth-mined umbalite garnet. STARLANKA sells only natural gemstones and does not offer synthetic or laboratory-created stones.
Has this umbalite garnet been treated?
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This STARLANKA umbalite garnet (SKU RD0843) is untreated. It is sold as a natural, untreated umbalite garnet, with no heat or enhancement of any kind.
Does this stone come with a certificate?
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This STARLANKA umbalite garnet (SKU RD0843) is not currently accompanied by an independent lab report. A report from GIA, GRS, AIGS, GIT, ICA GemLab, GUILD or AGR can be added before the stone ships.
What size is a 13ct cushion umbalite garnet?
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This STARLANKA umbalite garnet (SKU RD0843) weighs 13 carats and measures 15.11 × 12.58 × 8.52 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 umbalite garnet (SKU RD0843) 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 umbalite garnet?
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This STARLANKA umbalite garnet (SKU RD0843) 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.
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Umbalite Garnet Reviews(9)
“Excellent stone, beautiful.”
Verified buyer·Dec 7, 2025
Dec 7, 2025
“Good range of sizes, efficient and professional reliable service! I am very happy with my order, keep up the good work!”
Verified buyer·Aug 29, 2021
Aug 29, 2021
“Best quality, good service! Fast delivery! Strongly recommend!”
Verified buyer·May 22, 2021
May 22, 2021
“Beautiful gemstones! So happy with my purchase.”
Verified buyer·Mar 18, 2021
Mar 18, 2021
“Great stone! Better than its picture!”
Verified buyer·Feb 15, 2021
Feb 15, 2021
“Just as represented. Prompt delivery!”
Verified buyer·Jan 6, 2021
Jan 6, 2021
“Great customer service. Prompt delivery. Stone as described. Will be back again!”
Verified buyer·Dec 29, 2020
Dec 29, 2020
