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.

1.26 carat Cushion lab-grown diamond, IGI report LG826650335

RSD Selection Shown first for its screened grade profile

IGI report LG826650335

RSD-F6DFF179ACAE

1.26 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$349$277/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG826650335
1.25 carat Cushion lab-grown diamond, IGI report LG816692440

IGI report LG816692440

RSD-7C5C19C3FCF4

1.25 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$349$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG816692440
1.25 carat Cushion lab-grown diamond, IGI report LG828636320

IGI report LG828636320

RSD-EDD53B30ECDA

1.25 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$349$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG828636320
1.09 carat Cushion lab-grown diamond, IGI report LG843674958

IGI report LG843674958

RSD-A7A1A632993C

1.09 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674958
1.07 carat Cushion lab-grown diamond, IGI report LG833627692

IGI report LG833627692

RSD-9340FDBA9491

1.07 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$299$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG833627692
1.07 carat Cushion lab-grown diamond, IGI report LG843674947

IGI report LG843674947

RSD-261A2119E215

1.07 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674947
1.06 carat Cushion lab-grown diamond, IGI report LG844622965

IGI report LG844622965

RSD-596C4FA4A7F4

1.06 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$299$282/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844622965
1.05 carat Cushion lab-grown diamond, IGI report LG844612431

IGI report LG844612431

RSD-062A761A9B2E

1.05 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612431
1.05 carat Cushion lab-grown diamond, IGI report LG844633537

IGI report LG844633537

RSD-F5ECE4420674

1.05 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844633537
1.04 carat Cushion lab-grown diamond, IGI report LG843675087

IGI report LG843675087

RSD-BAF676FC8BB8

1.04 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675087
1.02 carat Cushion lab-grown diamond, IGI report LG844612653

IGI report LG844612653

RSD-123877043FC9

1.02 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$293/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612653
1.02 carat Cushion lab-grown diamond, IGI report LG844622966

IGI report LG844622966

RSD-DD33148DC1D5

1.02 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$293/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844622966
1.02 carat Cushion lab-grown diamond, IGI report LG844622967

IGI report LG844622967

RSD-DAC62C5E167F

1.02 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$293/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844622967
1.01 carat Cushion lab-grown diamond, IGI report LG833627782

IGI report LG833627782

RSD-C5690C77F634

1.01 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$299$296/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG833627782
1 carat Cushion lab-grown diamond, IGI report LG844612150

IGI report LG844612150

RSD-1902C8D1368A

1.00 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score91/100Evidence complete
$274$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612150
1 carat Cushion lab-grown diamond, IGI report LG843638903

IGI report LG843638903

RSD-58FFB6D83295

1.00 ct Cushion

D colorVVS2 clarityIGICVD

RSD Selection Score99/100Evidence complete
$274$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843638903
3.27 carat Cushion lab-grown diamond, IGI report LG836694533

IGI report LG836694533

RSD-45E7CECFD884

3.27 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$749$229/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG836694533
3.1 carat Cushion lab-grown diamond, IGI report LG797616231

IGI report LG797616231

RSD-1CAAE0BCEAFD

3.10 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$599$193/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG797616231
2.11 carat Cushion lab-grown diamond, IGI report LG812643927

IGI report LG812643927

RSD-89283C537EDF

2.11 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$449$213/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG812643927
1.85 carat Cushion lab-grown diamond, IGI report LG843674949

IGI report LG843674949

RSD-C3313A28FDCE

1.85 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$449$243/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674949
1.8 carat Cushion lab-grown diamond, IGI report LG843638932

IGI report LG843638932

RSD-2563A0D544B2

1.80 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$449$249/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843638932
1.64 carat Cushion lab-grown diamond, IGI report LG843638899

IGI report LG843638899

RSD-32042C52325B

1.64 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$243/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843638899
1.58 carat Cushion lab-grown diamond, IGI report LG809696467

IGI report LG809696467

RSD-D0EFB2173C20

1.58 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG809696467
1.58 carat Cushion lab-grown diamond, IGI report LG844612183

IGI report LG844612183

RSD-AEA26C1E13CB

1.58 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612183
1.58 carat Cushion lab-grown diamond, IGI report LG844633548

IGI report LG844633548

RSD-35C8EFAB5BFC

1.58 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844633548
1.58 carat Cushion lab-grown diamond, IGI report LG843675043

IGI report LG843675043

RSD-057ADE2487FE

1.58 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$253/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675043
1.57 carat Cushion lab-grown diamond, IGI report LG817668466

IGI report LG817668466

RSD-5C80AC975654

1.57 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$254/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG817668466
1.57 carat Cushion lab-grown diamond, IGI report LG843675096

IGI report LG843675096

RSD-A4FC3E393744

1.57 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$254/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675096
1.56 carat Cushion lab-grown diamond, IGI report LG817668464

IGI report LG817668464

RSD-8AB24F674C01

1.56 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$256/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG817668464
1.55 carat Cushion lab-grown diamond, IGI report LG837679235

IGI report LG837679235

RSD-B67EF5500E46

1.55 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$257/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837679235

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