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 supplier listing. We’ll open the matching River Stone page when it is currently available.

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.

—
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 668 matching diamonds.

More to exploreSee all 668 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

RSD Selection Shown first for its screened grade profile

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.
Review this diamond ↗
9.1 carat Cushion lab-grown diamond

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.
Review this diamond ↗
8.76 carat Cushion lab-grown diamond

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.
Review this diamond ↗
8.21 carat Cushion lab-grown diamond

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.
Review this diamond ↗
7.08 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.79 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.17 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.05 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.04 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.04 carat Cushion lab-grown diamond

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.
Review this diamond ↗
6.02 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.91 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.65 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.65 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.6 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.58 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.35 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.21 carat Cushion lab-grown diamond

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.
Review this diamond ↗
5.2 carat Cushion lab-grown diamond

RSD-62F0DFEBECF3

5.20 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$3,399$654/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
4.36 carat Cushion lab-grown diamond

RSD-C71993C205AD

4.36 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$2,499$573/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
4.08 carat Cushion lab-grown diamond

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.
Review this diamond ↗
3.52 carat Cushion lab-grown diamond

RSD-B4FC19FE3DCA

3.52 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,999$568/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.31 carat Cushion lab-grown diamond

RSD-4E6B320972E3

3.31 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,699$513/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.3 carat Cushion lab-grown diamond

RSD-B859793A50D0

3.30 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,699$515/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.23 carat Cushion lab-grown diamond

RSD-E6789FF4DA04

3.23 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,799$557/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.19 carat Cushion lab-grown diamond

RSD-E52C9B3310FF

3.19 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,999$627/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.18 carat Cushion lab-grown diamond

RSD-65A47A43D56C

3.18 ct Cushion

Fancy Vivid Green colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,499$471/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
3.1 carat Cushion lab-grown diamond

RSD-738B70EDD390

3.10 ct Cushion

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection Score94/100Evidence complete
$1,599$516/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗

Selected Asschers

2 shown

4.09 carat Asscher lab-grown diamond

RSD Selection Shown first for its screened grade profile

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.
Review this diamond ↗
1.71 carat Asscher lab-grown diamond

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.
Review this diamond ↗

Your selection

Your cart.

Keep a short list of diamonds together before you continue to secure checkout.

Your cart is empty.

Add a diamond from the collection and it will appear here.

Displayed total$0.00
Continue to secure checkout

We recheck availability and calculate any applicable tax in Stripe before payment. Your card is authorized first and captured only after supplier confirmation.