Melee Diamonds
Without Report Sizes .0012–.25 ct
Large Diamonds
Without Report Sizes .0012–.25 ct
natural diamoand
lab-grown diamond
Specialty Diamonds
Salt & pepper, special colors, cuts, and more
lab-grown diamond
GCAL 8X Ultimate Diamond Cut Grade
Collections
Calibrated Lab-Grown Diamonds
Value Quality
Value Quality Melee Kits
Color Enhanc
RCK Melle
CanadaMark® Melee
Known Origin with Grading Report
Salt & Pepper
Matched Pairs
Deals In Diamonds
Ultimate Cut Grade
- Lab-grown diamonds achieve excellent grades in all eight aspects of cut quality
- An interactive GCAL Grading Certificate that includes videos and more.
Our Screening Process
When you order diamonds from RCK Global, you can have complete confidence in your purchase. We remain at the forefront of diamond screening with robust practices that use the most advanced technology available.
- 2 automatic melee screeners
- 25 flourescence imaging screeners for loose and mounted diamonds
- 3 mega-sized imaging screeners
- 8 flourescence spectroscopy screeners
- 9 UV-transparency screeners
Knowledge & Resources
Flexible Collection
Engagement Rings
Gemstone Rings
Men's
Bridal
Bridal Mountings
ever & ever®
New products
Mountings
Advanced Mountings Search
3C Designs
New Products
Findings
Die-Struck Jewelry
Semi-Set Findings
New Products