Peruvian Jasper
Gemstone Quality Standard
About Peruvian Jasper
Rarity
This material is very rare. As it is hand-collected we don’t know i there is more material available or not.
Availability
We have approximately 30 kilograms of this material. We are not selling the rough rock. We may sell a few jewelry-grade slabs. We do produce custom cabochons, we sell our own cabochons and our jewelry with Peruvian Jasper.
Ethical mining
Peruvian Jasper is not mined. It is obtained via surface collection (Rockhounding) in very small quantities by local people who then come to Lima to sell a sack or two of those stones. There is no use of dynamite, or chemicals and habitat destruction does not occur.
Color
A mixture of white with shades of yellow, brown and green.
Polishable
Peruvian Jasper can be polished to glass finish.
Cutting Quality
Challenges:
Jasper is a very hard material, which leads to increased labor time, and increased use of tools, increasing the price of the product.
Advantages:
Jasper does not tend to break or chip. Experienced cutters therefore can obtain very sharp unchipped edges between the backside and bezel as well as between the bezel and dome.
Top-cutting-quality is characterized by:
- a polished backside
- a sharp unchipped edge between the backside and the bezel
- a very straight and even highly polished bezel
- a sharp unchipped edge between the bezel and the dome
- a well-shaped dome, not showing any deformation
- Top-quality polish
Pricing
Adequate pricing must take into account the cost factors to obtain top-quality cabochons:
- Acquisition of more material is likely to be impossible.
- A usual material loss of approximately 90 % of the selected material during the cutting and shaping process.
- The level of experience required by a cutter to produce a flawlessly shaped and highly polished cabochon.
- Our Jewelry Grade (A)
- Our Top-Quality Jewelry Grade (AA)
- Our Premium Jewelry Grade (AAA)
- Market research
Cutting Quality:
- Straight bezel (minor irregularities possible), 3 mm high
- Perfect dome (3-5 mm high)
- Edges between bezel and dome, as well as bezel and backside: sharp and crispy, minor chips on lower edge possible
- Backside flat at 280 grit, unpolished
Pricing:
Recommended Retail Price: 0.69 USD per carat
Cutting Quality:
- Straight bezel, 3 mm high
- Flat and perfect dome (3 mm high)
- Edges between bezel and dome, as well as bezel and backside: sharp and crispy, minor chips on lower edge possible but very rare.
- Backside flat, at 280 grit
Additional Quality (AA+): Backside polished to 3000 grit
Pricing:
Recommended Retail Price (AA): 0.99 USD per carat
AA+: 1.09 USD/c
Cutting Quality:
- Only cut by our best master cutters
- Straight bezel, 3 mm high
- Flat and perfect dome (1-3 mm high)
- The edges between the bezel and dome, as well as the bezel and backside, are sharp and crispy, with no chips on the lower edge.
Additional Quality (AAA+): Backside polished to 3000 grit
Pricing:
Recommended Retail Price (AAA): 1.29 USD per carat
AAA+: 1.39 USD/c
To the best of our knowledge, we are the only ones offering this stone.
Is there anything you wish to know about:
Shipping cost and logistics, Payment options, Product quality, Packaging, Shipping damage, Refunds, etc. ?
Cutting services
Do you need reliable high-quality cutting services for a reasonable price? Are you looking for a service provider that is willing to develop new products according to your requirements? Would you like to get expert advice in order to improve your product? Do you wish for someone to optimize the process and get the most out of your rough? Just talk to us.
Get in Touch
+51 994104206
gemrockinternational@gmail.com