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 5,088 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 LG843638888

RSD-111A00443226

1.06 ct Cushion

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete

$299$282/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843638888

IGI report LG843638934

RSD-E3FB01D685CA

1.03 ct Cushion

E colorVVS2 clarityIGICVD

RSD Selection Score90/100Evidence complete

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

Preview IGI report LG843638934

IGI report LG844612647

RSD-037741738948

1.02 ct Cushion

E colorVVS2 clarityIGICVD

RSD Selection Score90/100Evidence complete

$299$293/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612647

IGI report LG844612432

RSD-D2C445790C4C

1.01 ct Cushion

E colorVVS2 clarityIGICVD

RSD Selection Score90/100Evidence complete

$274$271/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612432

IGI report LG844634420

RSD-0A7393601FEA

3.59 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$799$223/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844634420

IGI report LG837678018

RSD-545A6051F68D

3.53 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$749$212/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG837678018

IGI report LG837643084

RSD-287C13537A4F

3.41 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$699$205/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG837643084

IGI report LG839624703

RSD-D2586FF94018

2.86 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$549$192/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG839624703

IGI report LG836688395

RSD-251A78F39102

2.45 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$499$204/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG836688395

IGI report LG836688363

RSD-FB7EA92A6709

2.10 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$449$214/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG836688363

IGI report LG761522986

RSD-8CB2E5B3AACE

1.96 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$499$255/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG761522986

IGI report LG788687675

RSD-6A09EF9BEEF0

1.95 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$799$410/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG788687675

IGI report LG797677420

RSD-1DAF2E27EAC8

1.92 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$799$416/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797677420

IGI report LG837678206

RSD-A7B88427D0A1

1.92 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$499$260/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG837678206

IGI report LG783629361

RSD-4912A12BFD7B

1.91 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$799$418/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG783629361

IGI report LG776656063

RSD-E8ACE752B2E1

1.83 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$218/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG776656063

IGI report LG794635504

RSD-B0CF323EF5D4

1.82 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$219/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG794635504

IGI report LG797677428

RSD-8B8B6B3E9369

1.82 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$219/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG797677428

IGI report LG837678209

RSD-DD868242C0E0

1.82 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$219/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG837678209

IGI report LG843675216

RSD-673D99585940

1.81 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$220/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675216

IGI report LG843675209

RSD-CD3D72023C30

1.78 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$224/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675209

IGI report LG844612630

RSD-5EB32C6C4546

1.59 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$251/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612630

IGI report LG844612185

RSD-B24A8992F7C1

1.58 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612185

IGI report LG843675044

RSD-6A172F22AC88

1.58 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675044

IGI report LG844622960

RSD-70ECC8CEDADA

1.58 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844622960

IGI report LG839624734

RSD-420F89EF1CED

1.57 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$254/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG839624734

IGI report LG841674414

RSD-707B7ADBC346

1.57 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$254/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG841674414

IGI report LG843675103

RSD-7A97BA29DD6D

1.57 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$254/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675103

IGI report LG844612402

RSD-C6DD74028F99

1.55 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

$399$257/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844612402

IGI report LG843675109

RSD-EF132ACD7D35

1.55 ct Cushion

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$257/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG843675109

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A more discerning
standard for diamonds.

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Explore selected diamonds

1.06 ct Cushion

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1.01 ct Cushion

3.59 ct Cushion

3.53 ct Cushion

3.41 ct Cushion

2.86 ct Cushion

2.45 ct Cushion

2.10 ct Cushion

1.96 ct Cushion

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1.78 ct Cushion

1.59 ct Cushion

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1.57 ct Cushion

1.57 ct Cushion

1.55 ct Cushion

1.55 ct Cushion

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A more discerningstandard for diamonds.

Explore selected diamonds

1.06 ct Cushion

1.03 ct Cushion

1.02 ct Cushion

1.01 ct Cushion

3.59 ct Cushion

3.53 ct Cushion

3.41 ct Cushion

2.86 ct Cushion

2.45 ct Cushion

2.10 ct Cushion

1.96 ct Cushion

1.95 ct Cushion

1.92 ct Cushion

1.92 ct Cushion

1.91 ct Cushion

1.83 ct Cushion

1.82 ct Cushion

1.82 ct Cushion

1.82 ct Cushion

1.81 ct Cushion

1.78 ct Cushion

1.59 ct Cushion

1.58 ct Cushion

1.58 ct Cushion

1.58 ct Cushion

1.57 ct Cushion

1.57 ct Cushion

1.57 ct Cushion

1.55 ct Cushion

1.55 ct Cushion

A more discerning
standard for diamonds.