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Welcome to Pristine Gemstones! Precious, precision-cut gemstones at wholesale pricing for engagement rings, family rings, anniversary rings, promise rings and other fine jewelry are our specialty. We carry a large inventory of sapphires, emeralds, rubies, aquamarine, tourmaline, alexandrite, citrine, topaz, watermelon tourmaline, spinel, amethyst, peridot etc. We also carry a good selection of semi-precious stones.

Our gemstones come to you directly from Rogerio Graca, a gemcutter and wholesale gemstone supplier with 20 years of experience in the industry, so you can be confident in our products, pricing, and service.


This is a solid black opal from Lighting Ridge.This is the real thing.
The fourth picture shows the bottom of the opal and the fifth picture a side view of the opal.

Black opal is the rarest and most valuable type of opal.

Few realize that 99.9% of the world's opal supply of this radiant, dark, lustrous gem is mined in only two points on the globe-- the Australian towns of Lightning Ridge in New South Wales (the black opal capital) and Mintabie in South Australia (Home of Mintabie black opal).

weight: 1.84 cts
size: 12 x 6 mm
origin: Australia

Our Policies

We offer a 10-day, money back, return policy as long as your item is in its original condition. We will also provide complimentary appraisals for any items over $1000, and we offer easy, no interest payment plans. Our appraisals are done by an independent, graduate gemologist of the GIA (Gemological Institute of America, the most recognized and reputable gemological institution in the world).

Please visit our shop policy section for more details: http://www.etsy.com/shop/PristineGemstones/policy?ref=shopinfo_policies_leftnav

Our priority is your satisfaction so we stand behind our gemstones.

Finally, if you haven’t seen exactly what you want in our shop, we can help you find the right gemstone, as we carry a large inventory of gemstones of which only a small sample is listed here. Please inquire.

For more wholesale loose gemstones by Rogerio, please visit our shop: www.etsy.com/shop/pristinegemstones or you can visit our finished jewelry shop where we make finished jewelry using Rogerio’s gemstones: www.etsy.com/shop/pristinejewelry.

To find us elsewhere online, please Google “Pristine Gemstone Jewelry”

Australian Solid Black Opal Loose Gemstone October Birthstone Fine Jewelry for Engagement Ring


  • Handmade Supply
  • Material: black opal
  • Ships worldwide from Victoria, Canada
  • Feedback: 206 reviews
  • Favorited by: 80 people