River Stone DiamondsPrivate Consultation

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.

Search a certificate number from any diamond listing. We’ll open the matching River Stone page when it is currently available.

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.

Shape
Choose one or more shapesEach shape enters the collection only after passing its own screening standard.
All shapes
Antique & specialty shapesExplore distinctive outlines that are currently available in the collection.
25 available shapes

Personally screened selection

Find the one that feels inevitable.

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RSD screened color
D-FEvery stone shown meets this color screen.
RSD screened clarity
VS2 or better for fancy colorColorless stones remain IF / VVS1 / VVS2 / VS1.
Reset search

Screened collection

Explore selected diamonds

Showing all 5,084 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.

1.58 carat Cushion lab-grown diamond, IGI report LG841674342

RSD Selection Shown first for its screened grade profile

IGI report LG841674342

RSD-96FB5E91FED4

1.58 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG841674342
1.58 carat Cushion lab-grown diamond, IGI report LG843675215

IGI report LG843675215

RSD-585B8D9FC163

1.58 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675215
1.56 carat Cushion lab-grown diamond, IGI report LG837679251

IGI report LG837679251

RSD-6E80D29D1D2D

1.56 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$399$256/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837679251
1.56 carat Cushion lab-grown diamond, IGI report LG843675237

IGI report LG843675237

RSD-B043823E312A

1.56 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence complete
$399$256/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675237
1.54 carat Cushion lab-grown diamond, IGI report LG839624733

IGI report LG839624733

RSD-AF1B53FA3997

1.54 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence complete
$399$259/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG839624733
1.51 carat Cushion lab-grown diamond, IGI report LG843675097

IGI report LG843675097

RSD-294BF66F1B8E

1.51 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence complete
$399$264/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675097
1.4 carat Cushion lab-grown diamond, IGI report LG843674952

IGI report LG843674952

RSD-1AF3831B15F4

1.40 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$349$249/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674952
1.3 carat Cushion lab-grown diamond, IGI report LG842634802

IGI report LG842634802

RSD-B6F890416309

1.30 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$349$268/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG842634802
1.25 carat Cushion lab-grown diamond, IGI report LG843638890

IGI report LG843638890

RSD-A0625D189299

1.25 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score88/100Evidence complete
$349$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843638890
1.08 carat Cushion lab-grown diamond, IGI report LG837678230

IGI report LG837678230

RSD-1FD633AE54CB

1.08 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$299$277/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837678230
1.05 carat Cushion lab-grown diamond, IGI report LG843675223

IGI report LG843675223

RSD-5A1868C0F85C

1.05 ct Cushion

F colorVS1 clarityIGICVD

RSD Selection Score96/100Evidence complete
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675223
2.22 carat Cushion lab-grown diamond, IGI report LG735541588

IGI report LG735541588

RSD-337E21E78EEA

2.22 ct Cushion

Fancy Vivid Pink colorVVS1 clarityIGICVD

RSD Selection Score95/100Evidence complete
$1,499$675/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG735541588
9.3 carat Cushion lab-grown diamond, IGI report LG761523880

IGI report LG761523880

RSD-4200A3370ED5

9.30 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence complete
$4,799$516/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG761523880
9.1 carat Cushion lab-grown diamond, IGI report LG760507046

IGI report LG760507046

RSD-7647EE40B966

9.10 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,699$516/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG760507046
8.76 carat Cushion lab-grown diamond, IGI report LG761523887

IGI report LG761523887

RSD-9D3D3CABF131

8.76 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,499$514/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG761523887
8.21 carat Cushion lab-grown diamond, IGI report LG739534246

IGI report LG739534246

RSD-F771EE6E0BEC

8.21 ct Cushion

Fancy Intense Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,199$511/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG739534246
7.87 carat Cushion lab-grown diamond, IGI report LG758555257

IGI report LG758555257

RSD-68528FD5843C

7.87 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence complete
$3,099$394/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG758555257
7.08 carat Cushion lab-grown diamond, IGI report LG741525404

IGI report LG741525404

RSD-7D8A27A745B2

7.08 ct Cushion

Fancy Intense Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,099$579/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG741525404
6.79 carat Cushion lab-grown diamond, IGI report LG784655500

IGI report LG784655500

RSD-CF23CAE401E4

6.79 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,799$707/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG784655500
6.17 carat Cushion lab-grown diamond, IGI report LG784656709

IGI report LG784656709

RSD-49505F6BBF47

6.17 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,499$729/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG784656709
6.05 carat Cushion lab-grown diamond, IGI report LG781602551

IGI report LG781602551

RSD-20E27A5784D2

6.05 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,399$727/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG781602551
6.04 carat Cushion lab-grown diamond, IGI report LG781602550

IGI report LG781602550

RSD-A3520DF50105

6.04 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$4,399$728/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG781602550
6.04 carat Cushion lab-grown diamond, IGI report LG733596813

IGI report LG733596813

RSD-425EAA5C1FAB

6.04 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,899$646/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG733596813
6.02 carat Cushion lab-grown diamond, IGI report LG761523894

IGI report LG761523894

RSD-720BE0F7976F

6.02 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,899$648/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG761523894
5.91 carat Cushion lab-grown diamond, IGI report LG788688154

IGI report LG788688154

RSD-D38C5EC5DAAA

5.91 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,499$592/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788688154
5.9 carat Cushion lab-grown diamond, IGI report LG761523881

IGI report LG761523881

RSD-F59C5EC3A444

5.90 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score86/100Evidence complete
$3,099$525/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG761523881
5.65 carat Cushion lab-grown diamond, IGI report LG782620547

IGI report LG782620547

RSD-C19BF92AE39A

5.65 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,999$708/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG782620547
5.65 carat Cushion lab-grown diamond, IGI report LG715550731

IGI report LG715550731

RSD-A2C00F9E14C7

5.65 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,999$531/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG715550731
5.6 carat Cushion lab-grown diamond, IGI report LG726540386

IGI report LG726540386

RSD-FA7BDFF6D389

5.60 ct Cushion

Fancy Vivid Blue colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,699$482/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG726540386
5.58 carat Cushion lab-grown diamond, IGI report LG782620540

IGI report LG782620540

RSD-B3745BBC68F7

5.58 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,999$717/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG782620540

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