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 5,088 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.

6.81 carat Cushion lab-grown diamond, IGI report LG787602623

RSD Selection Shown first for its screened grade profile

IGI report LG787602623

RSD-7627358C8D3D

6.81 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$4,399$646/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG787602623
6.18 carat Cushion lab-grown diamond, IGI report LG788686311

IGI report LG788686311

RSD-B92B345B94CC

6.18 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$4,399$712/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788686311
6 carat Cushion lab-grown diamond, IGI report LG792693425

IGI report LG792693425

RSD-3644DA46556E

6.00 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score85/100Evidence complete
$4,299$717/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG792693425
4.77 carat Cushion lab-grown diamond, IGI report LG807607981

IGI report LG807607981

RSD-418AD50943BA

4.77 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score84/100Evidence partial
$2,599$545/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG807607981
4.61 carat Cushion lab-grown diamond, IGI report LG784658321

IGI report LG784658321

RSD-A0E8C2BDA407

4.61 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$2,799$607/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG784658321
4.58 carat Cushion lab-grown diamond, IGI report LG788687043

IGI report LG788687043

RSD-856C15BBD1F5

4.58 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$2,499$546/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788687043
4.2 carat Cushion lab-grown diamond, IGI report LG745523627

IGI report LG745523627

RSD-5C69D769EA63

4.20 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,999$476/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG745523627
4.18 carat Cushion lab-grown diamond, IGI report LG807607980

IGI report LG807607980

RSD-1B1895192BC4

4.18 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,999$478/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG807607980
4.16 carat Cushion lab-grown diamond, IGI report LG734501199

IGI report LG734501199

RSD-75C9EC51473F

4.16 ct Cushion

Fancy Vivid Pink colorVS1 clarityIGICVD

RSD Selection Score87/100Evidence complete
$1,099$264/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG734501199
4.16 carat Cushion lab-grown diamond, IGI report LG719508609

IGI report LG719508609

RSD-10D66B714618

4.16 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,999$481/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG719508609
4.07 carat Cushion lab-grown diamond, IGI report LG813643558

IGI report LG813643558

RSD-1B6C142BD14D

4.07 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score84/100Evidence partial
$1,999$491/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG813643558
3.7 carat Cushion lab-grown diamond, IGI report LG786616533

IGI report LG786616533

RSD-AA31D6ABFB6D

3.70 ct Cushion

Fancy Brown colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,799$486/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG786616533
3.51 carat Cushion lab-grown diamond, IGI report LG637452034

IGI report LG637452034

RSD-415BE5788DF2

3.51 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,699$484/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG637452034
3.38 carat Cushion lab-grown diamond, IGI report LG625470734

IGI report LG625470734

RSD-1160AE525408

3.38 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$2,099$621/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG625470734
3.13 carat Cushion lab-grown diamond, IGI report LG633494289

IGI report LG633494289

RSD-89996CEBEDE0

3.13 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,799$575/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG633494289
3.09 carat Cushion lab-grown diamond, IGI report LG788687476

IGI report LG788687476

RSD-7739CA66C932

3.09 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,599$517/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788687476
3.08 carat Cushion lab-grown diamond, IGI report LG761523884

IGI report LG761523884

RSD-F62584B67A1B

3.08 ct Cushion

Fancy Vivid Pink colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,399$454/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG761523884
3.07 carat Cushion lab-grown diamond, IGI report LG752596815

IGI report LG752596815

RSD-04A0670044DC

3.07 ct Cushion

Fancy Vivid Pink colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$1,399$456/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG752596815
3.06 carat Cushion lab-grown diamond, IGI report LG742529003

IGI report LG742529003

RSD-1C3B7426E331

3.06 ct Cushion

Fancy Vivid Pink colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,399$457/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG742529003
3.05 carat Cushion lab-grown diamond, IGI report LG792692641

IGI report LG792692641

RSD-3019D27EFB99

3.05 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,599$524/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG792692641
3.04 carat Cushion lab-grown diamond, IGI report LG792692358

IGI report LG792692358

RSD-5D0DE0D943A0

3.04 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,599$526/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG792692358
3.02 carat Cushion lab-grown diamond, IGI report LG788687042

IGI report LG788687042

RSD-C949FAC9A9E5

3.02 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score85/100Evidence complete
$1,599$529/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788687042
3.01 carat Cushion lab-grown diamond, IGI report LG788686309

IGI report LG788686309

RSD-6B68953AEB13

3.01 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,499$498/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788686309
2.55 carat Cushion lab-grown diamond, IGI report LG790693468

IGI report LG790693468

RSD-5CCD1FB1F92C

2.55 ct Cushion

Fancy Vivid Brown colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,299$509/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG790693468
2.44 carat Cushion lab-grown diamond, IGI report LG719508534

IGI report LG719508534

RSD-74199C90C07D

2.44 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,199$491/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG719508534
2.44 carat Cushion lab-grown diamond, IGI report LG598327221

IGI report LG598327221

RSD-B29AB2317EB4

2.44 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,299$532/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG598327221
2.27 carat Cushion lab-grown diamond, IGI report LG715550762

IGI report LG715550762

RSD-8C638AABC5A6

2.27 ct Cushion

Fancy Vivid Green colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,099$484/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG715550762
2.07 carat Cushion lab-grown diamond, IGI report LG835642302

IGI report LG835642302

RSD-662571D12126

2.07 ct Cushion

Brown colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$1,199$579/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG835642302
2.06 carat Cushion lab-grown diamond, IGI report LG601333595

IGI report LG601333595

RSD-327476574DA9

2.06 ct Cushion

Fancy Intense Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$1,099$534/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG601333595
2.01 carat Cushion lab-grown diamond, IGI report LG788686331

IGI report LG788686331

RSD-4062CE79A19A

2.01 ct Cushion

Fancy Vivid Yellow colorVS1 clarityIGICVD

RSD Selection Score93/100Evidence complete
$849$422/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG788686331

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