0.51ct E SI1 Marquise Natural Diamond
EX • E/SI1 • GIA 6552974932
Certificate GIA 6552974932
Diamond specifications and retailer prices
About this 0.51ct natural marquise diamond
This 0.51ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552974932. Listed at 22 retailers as of October 29, 2026, with a 142% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.
The 4Cs
Specifications
Caratlytics Score
How it works →22 retailers
Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.
Similar diamonds
- 0.51ct MarquiseE/SI1from £587across 25 retailersAs of October 29, 2026
- 0.51ct MarquiseE/SI1from £640across 23 retailersAs of October 29, 2026
- 0.51ct MarquiseE/SI1from £699across 18 retailersAs of October 30, 2026
- 0.51ct MarquiseE/SI1from £339across 17 retailersAs of October 30, 2026
- 0.51ct MarquiseE/SI1from £643across 17 retailersAs of October 30, 2026
- 0.51ct MarquiseE/SI1from £439across 17 retailersAs of October 30, 2026
- 0.51ct MarquiseE/SI1from £389across 17 retailersAs of October 29, 2026
- 0.51ct MarquiseE/SI1from £506across 16 retailersAs of October 29, 2026