| Expert Select — Essence (Lab, E · VS1) | preciouscarbon.com | 440.0 USD | 4,045 USD | −62.5% |
| Expert Select — Refined (Lab, E · VVS2) | preciouscarbon.com | 462.0 USD | 3,984 USD | −50.6% |
| Expert Select — Signature (Lab, D · VVS2) | preciouscarbon.com | 655.2 USD | 13,817 USD | −35.4% |
| Celeste Vintage Engagement Rings | preciouscarbon.com | 1250 USD | 2,409 USD | −20% |
| Charles Three Stone Hidden Halo Engagement Ring | preciouscarbon.com | 817 USD | 1,691 USD | −20% |
| Saffron Bezel Pave Engagement Ring | preciouscarbon.com | 817 USD | 1,736 USD | −20% |
| Royal Vintage Engagement Ring | preciouscarbon.com | 817 USD | 1,625 USD | −20% |
| Laisy Pave Engagement Ring | preciouscarbon.com | 816 USD | 1,750 USD | −20% |
| Seria Hidden Halo Engagement Ring | preciouscarbon.com | 805 USD | 1,611 USD | −20% |
| Ezra Three Stone Trillion Engagement Ring | preciouscarbon.com | 804 USD | 1,678 USD | −20% |
| Lite Three Stone Princess Cut Engagement Ring | preciouscarbon.com | 796 USD | 1,643 USD | −20% |
| Sow Three Stone Round Cut Engagement Ring | preciouscarbon.com | 796 USD | 1,643 USD | −20% |
| Kinslee Three Stone Engagement Ring | preciouscarbon.com | 790 USD | 1,686 USD | −20% |
| Lavender Three Stone Princess Twisted Engagement Ring | preciouscarbon.com | 790 USD | 1,694 USD | −20% |
| Diam Side Stone Engagement Ring | preciouscarbon.com | 784 USD | 1,630 USD | −20% |
| Issabel Bypass Side Stone Engagement Ring | preciouscarbon.com | 773 USD | 1,678 USD | −20% |
| Soph Side Stone Engagement Ring | preciouscarbon.com | 737 USD | 1,529 USD | −20% |
| Chio High Set Halo Engagement Ring | preciouscarbon.com | 736 USD | 1,561 USD | −20% |
| Yearl Hidden Halo With Squared Diamond Engagement Ring | preciouscarbon.com | 722 USD | 1,556 USD | −20% |
| Samira Vintage Engagement Ring | preciouscarbon.com | 698 USD | 1,571 USD | −20% |
| Dominic Three Stone Engagement Ring | preciouscarbon.com | 685 USD | 1,483 USD | −20% |
| Prime Bezel Set Pave Engagement Ring | preciouscarbon.com | 685 USD | 1,539 USD | −20% |
| Full-Bezel Solitaire Engagement Ring | preciouscarbon.com | 644 USD | 1,610 USD | −20% |
| Grandeur Solitaire Engagement Rings | preciouscarbon.com | 644 USD | 1,610 USD | −20% |
| Star Multirow Engagement Ring | preciouscarbon.com | 1039 USD | 1,749 USD | −8.6% |
| 3CT Round Cut Natural Diamond F | VVS1 | GIA Certified | preciouscarbon.com | 98127 USD | — | — |
| 4.26CT Oval Cut Lab Grown Diamond D | FL | GIA Certified | preciouscarbon.com | 82641 USD | — | — |
| 1.51CT Round Cut Lab Grown Diamond D | VVS2 | IGI Certified | preciouscarbon.com | 81866 USD | — | — |
| 7.03CT Emerald Cut Natural Diamond K | VS1 | IGI Certified | preciouscarbon.com | 69229 USD | — | — |
| 3.01CT Oval Cut Natural Diamond F | VS1 | GIA Certified | preciouscarbon.com | 67697 USD | — | — |
| 6.01CT Round Cut Natural Diamond K | VS2 | IGI Certified | preciouscarbon.com | 65513 USD | — | — |
| 2.72CT Round Cut Natural Diamond F | VVS2 | GIA Certified | preciouscarbon.com | 64921 USD | — | — |
| 2.44CT Round Cut Natural Diamond G | IF | GIA Certified | preciouscarbon.com | 48230 USD | — | — |
| 2.51CT Round Cut Natural Diamond F | VS2 | GIA Certified | preciouscarbon.com | 43203 USD | — | — |
| 4.25CT Round Cut Natural Diamond K | SI1 | GIA Certified | preciouscarbon.com | 41371.0 USD | — | — |
| 3.36CT Round Cut Lab Grown Diamond D | FL | GIA Certified | preciouscarbon.com | 39792 USD | — | — |
| 5.06CT Oval Cut Lab Grown Diamond D | FL | IGI Certified | preciouscarbon.com | 36271 USD | — | — |
| 6.03CT Round Cut Lab Grown Diamond D | VVS1 | GIA Certified | preciouscarbon.com | 32610 USD | — | — |
| 2.59CT Round Cut Natural Diamond H | VVS2 | GIA Certified | preciouscarbon.com | 29423 USD | — | — |
| 5.02CT Round Cut Lab Grown Diamond D | VVS1 | GIA Certified | preciouscarbon.com | 24685 USD | — | — |