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Round Faceted Imitation Alexandrite - Otto Frei
Otto Frei

Round Faceted Imitation Alexandrite, Synthetic Corundum (June)

16 of 18 options in stock
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Description

This Alexandrite simulant is crafted from lab-created synthetic purple corundum, displaying a distinctive greyish-purple hue. With a hardness rating of 9 on the Mohs Scale, these stones offer excellent durability suited for everyday wear. Their round faceted cut delivers classic brilliance, and calibrated sizing ensures consistent fitting across a wide range of settings. Note that calibrated gemstone sizes may vary slightly by +/–0.10mm.

These simulants are particularly versatile for studio jewelers—they are safe to fire in metal clay and can be cast in place, making them a practical choice for a variety of fabrication techniques. Clean with warm, soapy water; use of an ultrasonic or steam cleaner is generally safe.

Features

  • Alexandrite simulant composed of synthetic purple corundum
  • Greyish-purple color with a round faceted cut
  • Mohs hardness of 9 — durable enough for everyday wear
  • Safe to fire in metal clay
  • Safe for stone-in-place casting
  • Compatible with ultrasonic and steam cleaning
  • Calibrated sizes may vary by +/–0.10mm

Specifications

Stone Type Alexandrite Simulant
Material Synthetic Purple Corundum (Lab-Created)
Cut Round Faceted
Color Greyish Purple
Mohs Hardness 9
Size Tolerance +/–0.10mm
Metal Clay Safe Yes
Cast in Place Safe Yes

Available Options

Part # Size
910-610 1.00mm
910-615 1.50mm
910-620 2.00mm
910-622 2.25mm
910-625 2.50mm
910-627 2.75mm
910-630 3.00mm
910-632 3.25mm
910-635 3.50mm
910-637 3.75mm
910-640 4.00mm
910-645 4.50mm
910-650 5.00mm
910-655 5.50mm
910-660 6.00mm
910-665 6.50mm
910-670 7.00mm
910-680 8.00mm

Specifications

Brand
Otto Frei
Part #
Varies by size
Type
Faceted Gemstone
Dimensions
0.1 in x 0.1 in x 0.1 in
Stone Type
Alexandrite Simulant
Material
Synthetic Purple Corundum (Lab-Created)
Cut
Round Faceted
Color
Greyish Purple
Mohs Hardness
9
Size Tolerance
+/–0.10mm
Metal Clay Safe
Yes
Cast in Place Safe
Yes
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

Reviews · 1

This product has 1 review.

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N
Natalie

All of the stones ive purchased have been beautiful. And shipped fast too. TY

A
A

Do these stones change color based on lighting like Alexandrites and color change Sapphires? The wording in the specifications seems to imply the latter.

OttoFrei.com

These stones are imitation Alexandrites so they don't have the same characteristics as the genuine stones. They are meant to come close to matching a standard of color only.