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 LG843675231

RSD-17A15842FA46

1.54 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$259/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675231

IGI report LG844612626

RSD-49C91DF14EA1

1.53 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$261/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612626

IGI report LG843675235

RSD-1BFD973EE157

1.53 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$261/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675235

IGI report LG843675236

RSD-BDC0F98C7B9E

1.53 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$261/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675236

IGI report LG843638902

RSD-219323825473

1.53 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$261/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843638902

IGI report LG843675229

RSD-AC688FD7B0FF

1.52 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$263/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675229

IGI report LG843675234

RSD-7355E38CB716

1.52 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$263/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675234

IGI report LG844612645

RSD-714C55DED7BD

1.51 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$264/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612645

IGI report LG839624735

RSD-591B4ABC7067

1.50 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG839624735

IGI report LG844612188

RSD-63F4E6CDC390

1.50 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612188

IGI report LG843675048

RSD-CF48B0F7120F

1.50 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675048

IGI report LG819632166

RSD-810277E403D0

1.40 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$249/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG819632166

IGI report LG843675050

RSD-C0446760FD6B

1.37 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$255/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675050

IGI report LG844610779

RSD-2E88446C6D0B

1.35 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$259/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844610779

IGI report LG843638930

RSD-3B724865D4C2

1.35 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$259/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843638930

IGI report LG839611012

RSD-6FBF47AE6B4D

1.30 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$268/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG839611012

IGI report LG843638921

RSD-B2411076C2FD

1.24 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$281/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843638921

IGI report LG844610776

RSD-E00A9A996118

1.22 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$286/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844610776

IGI report LG828671647

RSD-81DA689301FC

1.20 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$349$291/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG828671647

IGI report LG843675225

RSD-92E9E0E86A47

1.19 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$251/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675225

IGI report LG843674944

RSD-2733406BADA4

1.09 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843674944

IGI report LG843638889

RSD-F756327EA870

1.09 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843638889

IGI report LG844622962

RSD-F9F5DACD6E3F

1.09 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844622962

IGI report LG842634801

RSD-F54FF002C578

1.08 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$299$277/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG842634801

IGI report LG844633535

RSD-4CCCEFF1137C

1.05 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844633535

IGI report LG843675222

RSD-807C1C8D0BB0

1.04 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675222

IGI report LG843675089

RSD-60829D61EF33

1.04 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675089

IGI report LG843675204

RSD-5715AFDE5DB8

1.03 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$299$290/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675204

IGI report LG844622969

RSD-3E2C6624DD3C

1.03 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$290/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844622969

IGI report LG843675202

RSD-045940549826

1.03 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$299$290/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675202

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A more discerning
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A more discerningstandard for diamonds.

Explore selected diamonds

1.54 ct Cushion

1.53 ct Cushion

1.53 ct Cushion

1.53 ct Cushion

1.53 ct Cushion

1.52 ct Cushion

1.52 ct Cushion

1.51 ct Cushion

1.50 ct Cushion

1.50 ct Cushion

1.50 ct Cushion

1.40 ct Cushion

1.37 ct Cushion

1.35 ct Cushion

1.35 ct Cushion

1.30 ct Cushion

1.24 ct Cushion

1.22 ct Cushion

1.20 ct Cushion

1.19 ct Cushion

1.09 ct Cushion

1.09 ct Cushion

1.09 ct Cushion

1.08 ct Cushion

1.05 ct Cushion

1.04 ct Cushion

1.04 ct Cushion

1.03 ct Cushion

1.03 ct Cushion

1.03 ct Cushion

A more discerning
standard for diamonds.