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.

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.
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Screened collection

Explore selected diamonds

Showing all 4,598 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.

Selected Car Cuts

6 shown

2.21 carat Car Cut lab-grown diamond

RSD Selection Shown first for its screened grade profile

RSD-18C8A06514D5

2.21 ct Car Cut

D colorVS1 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$1,499$678/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
2.18 carat Car Cut lab-grown diamond

RSD-61680EB39A03

2.18 ct Car Cut

E colorVS1 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$1,199$550/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
1.79 carat Car Cut lab-grown diamond

RSD-1C3E81CFD4B1

1.79 ct Car Cut

E colorVS1 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$999$558/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
2.21 carat Car Cut lab-grown diamond

RSD-F823AB0A94FC

2.21 ct Car Cut

F colorVS1 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$1,099$497/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
1.03 carat Car Cut lab-grown diamond

RSD-2EF238035138

1.03 ct Car Cut

Fancy Brown colorVVS2 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$649$630/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
1.15 carat Car Cut lab-grown diamond

RSD-0FBC5439AECE

1.15 ct Car Cut

Fancy Vivid Blue colorVS2 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$599$521/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
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Selected Duck Step Cuts

2 shown

1.12 carat Duck Step Cut lab-grown diamond

RSD Selection Shown first for its screened grade profile

RSD-C033024818B3

1.12 ct Duck Step Cut

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$649$579/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗
0.53 carat Duck Step Cut lab-grown diamond

RSD-3CC6E5FBF87B

0.53 ct Duck Step Cut

Fancy Vivid Pink colorVVS2 clarityIGICVD

RSD Selection ScoreEvidence incompleteReview the detail page for the missing fields.
$349$658/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Review this diamond ↗

Your selection

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