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.

1.36 carat Marquise lab-grown diamond, IGI report LG843675019

RSD Selection Shown first for its screened grade profile

IGI report LG843675019

RSD-BC75F551C8DA

1.36 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score79/100Evidence partial
$349$257/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675019
1.24 carat Marquise lab-grown diamond, IGI report LG809670533

IGI report LG809670533

RSD-321B874BBEDA

1.24 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$349$281/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG809670533
1.21 carat Marquise lab-grown diamond, IGI report LG809623814

IGI report LG809623814

RSD-31DC749ECD42

1.21 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$349$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG809623814
1.05 carat Marquise lab-grown diamond, IGI report LG842624905

IGI report LG842624905

RSD-020F5D2DF1C1

1.05 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score89/100Evidence partial
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG842624905
1.04 carat Marquise lab-grown diamond, IGI report LG839610998

IGI report LG839610998

RSD-1BF64029C640

1.04 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG839610998
1.04 carat Marquise lab-grown diamond, IGI report LG839624868

IGI report LG839624868

RSD-A664D30633F7

1.04 ct Marquise

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG839624868
4.11 carat Marquise lab-grown diamond, IGI report LG756547935

IGI report LG756547935

RSD-1AB846183082

4.11 ct Marquise

E colorVVS1 clarityIGICVD

RSD Selection Score90/100Evidence partial
$1,199$292/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG756547935
10.5 carat Marquise lab-grown diamond, IGI report LG776691066

IGI report LG776691066

RSD-C6AE908BFCA3

10.50 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$3,399$324/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG776691066
5.58 carat Marquise lab-grown diamond, IGI report LG749585616

IGI report LG749585616

RSD-A5B1335D0FCF

5.58 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$1,099$197/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG749585616
5.08 carat Marquise lab-grown diamond, IGI report LG844634381

IGI report LG844634381

RSD-9F08C6DE2914

5.08 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$949$187/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844634381
5.04 carat Marquise lab-grown diamond, IGI report LG755523144

IGI report LG755523144

RSD-C3723F9E5F4C

5.04 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$949$188/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG755523144
5.03 carat Marquise lab-grown diamond, IGI report LG801623202

IGI report LG801623202

RSD-B35603E6067A

5.03 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$949$189/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG801623202
5.03 carat Marquise lab-grown diamond, IGI report LG844614271

IGI report LG844614271

RSD-B0F014628041

5.03 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$949$189/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844614271
5.02 carat Marquise lab-grown diamond, IGI report LG754592671

IGI report LG754592671

RSD-1D20E728F5C7

5.02 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$949$189/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG754592671
4.5 carat Marquise lab-grown diamond, IGI report LG843613326

IGI report LG843613326

RSD-325DA44A8CFD

4.50 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$949$211/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843613326
4.08 carat Marquise lab-grown diamond, IGI report LG837669669

IGI report LG837669669

RSD-321E4B863ADB

4.08 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$799$196/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837669669
4.07 carat Marquise lab-grown diamond, IGI report LG837677987

IGI report LG837677987

RSD-8C6F2FE067AC

4.07 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$799$196/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837677987
2.96 carat Marquise lab-grown diamond, IGI report LG854627111

IGI report LG854627111

RSD-5414A48EE1FE

2.96 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$599$202/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG854627111
2.51 carat Marquise lab-grown diamond, IGI report LG853647902

IGI report LG853647902

RSD-57D5DF8B076B

2.51 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$549$219/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG853647902
2.43 carat Marquise lab-grown diamond, IGI report LG797636714

IGI report LG797636714

RSD-571E49D22CE2

2.43 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$549$226/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG797636714
2.4 carat Marquise lab-grown diamond, IGI report LG792692774

IGI report LG792692774

RSD-B192FC78F909

2.40 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$599$250/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG792692774
2.39 carat Marquise lab-grown diamond, IGI report LG844609502

IGI report LG844609502

RSD-60B3E2D50F9A

2.39 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$549$230/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844609502
2.05 carat Marquise lab-grown diamond, IGI report LG855617584

IGI report LG855617584

RSD-C7F49003AACE

2.05 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$499$243/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG855617584
1.95 carat Marquise lab-grown diamond, IGI report LG764696208

IGI report LG764696208

RSD-3FE0FFCAEB55

1.95 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$449$230/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG764696208
1.93 carat Marquise lab-grown diamond, IGI report LG801620250

IGI report LG801620250

RSD-0C4AFD05B279

1.93 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score89/100Evidence partial
$449$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG801620250
1.91 carat Marquise lab-grown diamond, IGI report LG764696213

IGI report LG764696213

RSD-98A416463B0A

1.91 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$209/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG764696213
1.9 carat Marquise lab-grown diamond, IGI report LG764696236

IGI report LG764696236

RSD-873CD2E804AC

1.90 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$449$236/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG764696236
1.9 carat Marquise lab-grown diamond, IGI report LG764697298

IGI report LG764697298

RSD-55758F7C30FD

1.90 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$210/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG764697298
1.9 carat Marquise lab-grown diamond, IGI report LG780657466

IGI report LG780657466

RSD-389DF6A832CE

1.90 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$210/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG780657466
1.89 carat Marquise lab-grown diamond, IGI report LG787602680

IGI report LG787602680

RSD-C466D48FD0AA

1.89 ct Marquise

E colorVVS2 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$211/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG787602680

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