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 LG787661732

RSD-803FC7C5F747

2.61 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$449$172/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG787661732

IGI report LG821667571

RSD-858648F80BAF

2.61 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$449$172/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG821667571

IGI report LG854627106

RSD-6252213C121A

2.59 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$449$173/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG854627106

IGI report LG762547738

RSD-3AC31F2191BC

2.57 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$449$175/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG762547738

IGI report LG842625483

RSD-A5E85F46CBFD

2.57 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$449$175/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG842625483

IGI report LG768688478

RSD-903DCF840354

2.54 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$449$177/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG768688478

IGI report LG838602516

RSD-CD3FEFEB9658

2.54 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$449$177/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG838602516

IGI report LG838602518

RSD-7FB69C738F60

2.11 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$399$189/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG838602518

IGI report LG838643992

RSD-11C24F1F174B

2.10 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$190/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG838643992

IGI report LG835629592

RSD-630D381527C7

1.93 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$207/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG835629592

IGI report LG835630992

RSD-3B6E8A95B31F

1.92 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$208/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG835630992

IGI report LG815628443

RSD-E3EEDB1A4873

1.87 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$213/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG815628443

IGI report LG835630955

RSD-911085694344

1.81 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG835630955

IGI report LG837679386

RSD-65A48131C44F

1.81 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence complete

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

Preview IGI report LG837679386

IGI report LG833609940

RSD-FB07D0E04B59

1.60 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$249/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG833609940

IGI report LG839611008

RSD-BB3EEC0CCD23

1.59 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG839611008

IGI report LG833609911

RSD-7D3A70006638

1.56 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$399$256/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG833609911

IGI report LG842624862

RSD-4ABB95A67837

1.56 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$399$256/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG842624862

IGI report LG814625528

RSD-76C5CBA921FE

1.55 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG814625528

IGI report LG843612942

RSD-71E3B7B9242B

1.55 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

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

Preview IGI report LG843612942

IGI report LG838602019

RSD-A6DC7A45B547

1.51 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score80/100Evidence partial

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

Preview IGI report LG838602019

IGI report LG842625034

RSD-6D836C219340

1.47 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$349$237/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG842625034

IGI report LG842625033

RSD-84BE6C7E9EA7

1.47 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

$349$237/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG842625033

IGI report LG841674405

RSD-3D4952310A38

1.39 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$251/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG841674405

IGI report LG826650427

RSD-1776BFD025EA

1.38 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG826650427

IGI report LG815628508

RSD-A483E1A9BA03

1.35 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG815628508

IGI report LG844611862

RSD-4AE463D53794

1.33 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

$349$262/ctCurrent price. No artificial markdowns.Availability confirmed before any order.

Preview IGI report LG844611862

IGI report LG818689618

RSD-A6D75B33A91B

1.30 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG818689618

IGI report LG843675250

RSD-038AF0AF17EA

1.30 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score97/100Evidence complete

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

Preview IGI report LG843675250

IGI report LG838602615

RSD-8B1CD9CF2112

1.30 ct Emerald

E colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence partial

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

Preview IGI report LG838602615

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A more discerning
standard for diamonds.

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2.61 ct Emerald

2.61 ct Emerald

2.59 ct Emerald

2.57 ct Emerald

2.57 ct Emerald

2.54 ct Emerald

2.54 ct Emerald

2.11 ct Emerald

2.10 ct Emerald

1.93 ct Emerald

1.92 ct Emerald

1.87 ct Emerald

1.81 ct Emerald

1.81 ct Emerald

1.60 ct Emerald

1.59 ct Emerald

1.56 ct Emerald

1.56 ct Emerald

1.55 ct Emerald

1.55 ct Emerald

1.51 ct Emerald

1.47 ct Emerald

1.47 ct Emerald

1.39 ct Emerald

1.38 ct Emerald

1.35 ct Emerald

1.33 ct Emerald

1.30 ct Emerald

1.30 ct Emerald

1.30 ct Emerald

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A more discerningstandard for diamonds.

Explore selected diamonds

2.61 ct Emerald

2.61 ct Emerald

2.59 ct Emerald

2.57 ct Emerald

2.57 ct Emerald

2.54 ct Emerald

2.54 ct Emerald

2.11 ct Emerald

2.10 ct Emerald

1.93 ct Emerald

1.92 ct Emerald

1.87 ct Emerald

1.81 ct Emerald

1.81 ct Emerald

1.60 ct Emerald

1.59 ct Emerald

1.56 ct Emerald

1.56 ct Emerald

1.55 ct Emerald

1.55 ct Emerald

1.51 ct Emerald

1.47 ct Emerald

1.47 ct Emerald

1.39 ct Emerald

1.38 ct Emerald

1.35 ct Emerald

1.33 ct Emerald

1.30 ct Emerald

1.30 ct Emerald

1.30 ct Emerald

A more discerning
standard for diamonds.