Gemstone

Deep Purple Amethyst Cushion Cut 18.62 Ct – Natural Quartz

$329.00
USD · One stone available
18.62 Ct. Cushion 17.0x17.0x11.6 mm None Detected

This impressive 18.62 carat natural amethyst displays a rich purple color with vivid violet flashes throughout the stone. Cut in a substantial cushion shape, the gemstone combines deep color with lively reflections and excellent visual presence.

The broad faceting creates striking flashes of purple and violet, while the large size makes this amethyst an excellent choice for a statement piece. Its bold color and classic cushion shape work beautifully for a custom pendant, ring, or other one-of-a-kind jewelry design.

Gemstone Details:

  • Gemstone: Amethyst
  • Species: Quartz
  • Weight: 18.62 Carats
  • Shape: Cushion Cut
  • Dimensions: 17.0 x 17.0 x 11.6 mm
  • Color: Deep Purple with Violet Highlights
  • Clarity: Eye Clean – minor natural characteristics may be visible under close inspection
  • Origin: Unknown
  • Treatment: None Detected

Create a One-of-a-Kind Piece… This large amethyst can be set into a custom statement pendant, ring, or other unique jewelry design. Contact us to get started with a custom jewelry design.

Only 1 available — this exact stone ships to you
Qty
Deep Purple Amethyst Cushion Cut 18.62 Ct – Natural Quartz
GIA Graduate Gemologist
Every stone personally verified
Individual Photography
The exact stone you receive
Fully Disclosed
Treatments always stated
14-Day Returns
Unused & unaltered
Ships in 5–6 business days · Free shipping on this order (over $200+) · U.S. based, Columbus, Ohio
Stone Details

Full Gemological Specifications

Complete, fully disclosed information — exactly as graded and identified by our GIA Graduate Gemologist.

QUA-0029 · Gemological Data Fully Disclosed
Species
Quartz
Variety
Amethyst
Carat Weight
18.62 Ct.
Dimensions
17.0x17.0x11.6 mm
Shape / Cut
Cushion
Color
Deep Purple with Violet Highlights
Clarity
Eye clean with minor natural inclusions visible under close inspection.
Transparency
Transparent
Stone Form
Faceted
Origin
Unknown
Suitable for Jewelry
Yes
Treatment
None Detected
Treatment Disclosure
No indications of treatment detected.
No. of Pieces
1
Notes
Large cushion-cut amethyst with rich purple color and vivid violet flashes.
Customer Reviews

Real experiences from our customers

5.0 / 5.0
5.0
Based on customer reviews
5 / 5

My sisters and I love how special it is to have necklaces that match our mom's birthstones. We worked with Jeremiah to create custom pieces for all three of us. They came out beautiful and are so meaningful to us.

Katie R.
Custom Design Experience
5 / 5

I received a lovely compliment on my necklace at card club yesterday and was so pleased to share that I had it custom-made through French Cut Gems. The whole experience was wonderful.

Loretta S.
Custom Jewelry Client
5 / 5

I bought a birthstone pendant for my wife and couldn't be happier. The stone was exactly as described and the quality exceeded my expectations. Will definitely shop here again.

John R.
Custom Jewelry Client
FAQ

Frequently Asked Questions

Everything you need to know before you buy. More questions? Contact us.

Yes. All gemstones are natural unless clearly stated otherwise. Any known treatments are fully disclosed in each listing.

Every gemstone is personally sourced and evaluated by a GIA Graduate Gemologist to ensure quality, accuracy, and honest representation.

Yes. All photos and videos show the actual gemstone you will receive. We strive to represent each stone accurately using neutral lighting, though slight color differences may occur due to screen settings.

Orders are processed within 1–3 business days after payment is received. Custom requests or special packaging may require additional time. We ship via USPS, UPS, or FedEx — all orders include tracking and insurance.

Free U.S. shipping is available on orders over $200 USD. Orders over $500 USD may require signature confirmation to ensure safe delivery.

Returns are accepted within the timeframe outlined in our Return Policy, provided the gemstone is returned in its original condition.

Yes. International shipping is available. Buyers are responsible for any customs duties or import taxes, and delivery times may vary due to customs processing.

From the April - Diamond Collection

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