6mm Round Lab-Grown Alexandrite Celtic Engagement Ring – Black Rhodium | Model 25

This Celtic engagement ring pairs a 6mm round lab-grown alexandrite with an interwoven knot design and colorless accent stones. A black rhodium-plated finish brings contrast to the gemstone and intricate band.

Ring specifications

• Center stone: Lab-grown alexandrite
• Shape and size: Round, 6mm
• Design: Celtic knot engagement ring, Model 25
• Metal options: Silver, 14K gold, or PT900 platinum
• Finish: Black rhodium plating

Made to order and customization

Select your ring size and metal from the available options. Please allow up to 21 days for production and shipment. This is the time to make and ship the ring; transit time is additional. Contact us to discuss alternative stones or metals.

Frequently asked questions

Is the alexandrite natural or lab-grown?

The center stone is lab-grown alexandrite.

Is every option made from 14K gold?

No. This design is offered in silver, 14K gold, and PT900 platinum. Your selected option determines the underlying metal.

What gives the ring its black finish?

The black finish is rhodium plating over the selected metal. Black rhodium plating requires special care.

Explore more alexandrite rings.

Black finish: care and warranty

The black color on Bellawie jewelry is black rhodium plating, a thin surface coating applied over the gold, platinum or silver. The ring is not made of solid black metal.

• Normal wear: black plating gradually wears, fades or scratches with everyday wear, most quickly on the band and other high-contact areas. This is normal wear and tear, not a defect.
• Special care: take the ring off for the gym, sports, cleaning, gardening, swimming pools and hot tubs. Keep it away from chlorine, bleach and household chemicals, and put on lotions and perfume before the ring. Clean only with mild soap, warm water and a soft cloth; no ultrasonic cleaners, polishing cloths or abrasive cleaners.
• Warranty: wear, fading or scratching of black rhodium plating is not covered by our warranty. Re-plating is available as a paid service: see Rhodium Plating and our Warranty.