The River Stone collection

A more discerning
standard for diamonds.

We personally review the details that matter: grade, proportions, media, growth method and availability, before a stone enters this collection.

A considered selection of CVD and HPHT lab-grown diamonds, including fancy colors, with final availability and order details confirmed before any order is finalized.

Explore our guides: loose IGI-certified diamonds · IGI certificate lookup · fancy-color diamonds · colored-diamond pricing.

Looking for several stones? Ask the Diamond Concierge for different shapes and carat weights in one request—for example, a 1.5 ct round, a 2 ct pear and a 3 ct emerald. Available matches appear together on one results page.

Screened collection

Explore selected diamonds

Showing all 5,089 matching diamonds.

Refine the viewReturn to RSD SelectionShow considered shortlist

How RSD Selection worksWe begin with a curated shortlist. Every diamond shown passes our IGI, media, availability, growth-method and finish screens. Colorless stones stay within our stricter fluorescence screen; fancy-color stones retain the fluorescence grade reported on the certificate, including when it is not reported. RSD Selection places the strongest screened profiles first; it is a considered starting point—not a claim that one diamond is universally best.

RSD Selection Shown first for its screened grade profile

IGI report LG776656075

RSD-6D8D211DBED1

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG776656075

IGI report LG784656243

RSD-BDE8840D85C2

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG784656243

IGI report LG797636448

RSD-6EC7369D8597

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797636448

IGI report LG797636450

RSD-4D826BC4811D

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797636450

IGI report LG797636466

RSD-86CBE1138539

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797636466

IGI report LG801620080

RSD-ED0121CC612D

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG801620080

IGI report LG801620084

RSD-919D0C0E8533

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG801620084

IGI report LG801620085

RSD-B6989706D616

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG801620085

IGI report LG808607506

RSD-05153F99961E

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808607506

IGI report LG808607512

RSD-1E0828EBE3A1

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808607512

IGI report LG808616895

RSD-7DF414EF0473

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808616895

IGI report LG809624627

RSD-DFB2904F0344

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG809624627

IGI report LG809624735

RSD-075367F00255

1.86 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$215/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG809624735

IGI report LG719504316

RSD-F84A198A1D74

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG719504316

IGI report LG719561371

RSD-07FB25FCC81C

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG719561371

IGI report LG797677258

RSD-1577A2F4DA72

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797677258

IGI report LG760507373

RSD-F19AB6AEFEFA

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG760507373

IGI report LG808607167

RSD-94899D8F76DD

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808607167

IGI report LG808616875

RSD-36F5D9663143

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808616875

IGI report LG808616864

RSD-32FDA0903FF3

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808616864

IGI report LG809624731

RSD-231423ECB314

1.85 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$216/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG809624731

IGI report LG719506600

RSD-ADD9D877B9B1

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG719506600

IGI report LG747572094

RSD-3BBBC4C401D7

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG747572094

IGI report LG747572364

RSD-A9C8360B2EC5

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG747572364

IGI report LG797677271

RSD-0E21226B5A55

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797677271

IGI report LG790652351

RSD-63295CEA1D6A

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG790652351

IGI report LG801620063

RSD-25BF11351375

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG801620063

IGI report LG808607505

RSD-6E4C00935DB0

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808607505

IGI report LG809624229

RSD-C01AEFA9D19C

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG809624229

IGI report LG808616862

RSD-11CF953F540A

1.84 ct Round

E colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence partial

$399$217/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG808616862

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A more discerning
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A more discerningstandard for diamonds.

Explore selected diamonds

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.86 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.85 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

1.84 ct Round

A more discerning
standard for diamonds.