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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Fancy color
RSD screened clarity
VS2 or better for fancy colorColorless stones remain IF / VVS1 / VVS2 / VS1.
Reset search

Selected diamonds

48 diamonds

Showing a curated shortlist of 48 from 592 matching diamonds.

More to exploreSee all 592 diamondsBrowse every option

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.

Selected Cushions

28 shown

2.22 carat Cushion lab-grown diamond, IGI report LG735541588

RSD Selection Shown first for its screened grade profile

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
9.1 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
7.08 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
5.65 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
5.35 carat Cushion lab-grown diamond, IGI report LG784655485

IGI report LG784655485

RSD-9BA181F0ECD2

5.35 ct Cushion

Fancy Vivid Yellow colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,799$710/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG784655485
5.21 carat Cushion lab-grown diamond, IGI report LG764615472

IGI report LG764615472

RSD-BBE8372E8472

5.21 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,199$422/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG764615472
4.72 carat Cushion lab-grown diamond, IGI report LG632495066

IGI report LG632495066

RSD-F28EDB4E41D0

4.72 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,199$466/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG632495066
4.4 carat Cushion lab-grown diamond, IGI report LG628442510

IGI report LG628442510

RSD-3A41767BA9FA

4.40 ct Cushion

Fancy Vivid Blue colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,599$363/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG628442510
4.36 carat Cushion lab-grown diamond, IGI report LG733599482

IGI report LG733599482

RSD-C71993C205AD

4.36 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,099$481/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG733599482
4.32 carat Cushion lab-grown diamond, IGI report LG631463506

IGI report LG631463506

RSD-C93FB30DA246

4.32 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,099$486/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG631463506
4.24 carat Cushion lab-grown diamond, IGI report LG631421012

IGI report LG631421012

RSD-AE977C0A8EA8

4.24 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,099$495/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG631421012
4.23 carat Cushion lab-grown diamond, IGI report LG628490420

IGI report LG628490420

RSD-F8CD8E94FEC5

4.23 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,099$496/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG628490420
4.08 carat Cushion lab-grown diamond, IGI report LG633494302

IGI report LG633494302

RSD-58CF3AAF9B35

4.08 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,999$490/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG633494302
4.05 carat Cushion lab-grown diamond, IGI report LG806629330

IGI report LG806629330

RSD-CD0C15AE0C53

4.05 ct Cushion

Fancy Brown colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,199$543/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG806629330
3.95 carat Cushion lab-grown diamond, IGI report LG636490259

IGI report LG636490259

RSD-BF67A87C80C8

3.95 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,699$430/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG636490259
3.52 carat Cushion lab-grown diamond, IGI report LG742528998

IGI report LG742528998

RSD-B4FC19FE3DCA

3.52 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,599$454/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG742528998

Selected Asschers

2 shown

4.09 carat Asscher lab-grown diamond, IGI report LG732565258

RSD Selection Shown first for its screened grade profile

IGI report LG732565258

RSD-DEDB5248647C

4.09 ct Asscher

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,999$489/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG732565258
1.71 carat Asscher lab-grown diamond, IGI report LG719563843

IGI report LG719563843

RSD-530876E98F6D

1.71 ct Asscher

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$749$438/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG719563843

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