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Loose Diamonds: Natural & Lab-Grown

Robinhood Auctions, Las Vegas · 15 Aug 2026

This sale ended on 15 August 2026. The page is kept for reference.

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Started: Sat, Aug 15, 2026 · 1:00 pm (ET)
Location: Las Vegas, Nevada, 89 030
Sale format: Online Only
Lots: 304
Categories: Jewelry & Watches
Auction house: Robinhood Auctions
Website: robinhoodauctions.com

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About this listing: the details were supplied by the auction house. Bidding, payment and collection are handled by the auction house, not by Auction Eagle, and Auction Eagle is free for bidders. Spotted an error? Tell us.

About this sale

This sale offered 304 lots, listed under Jewelry & Watches. It closed on Saturday 15 August 2026. Robinhood Auctions has 6 other upcoming sales on Auction Eagle.

Highlights from this sale

A selection of lots from the catalog.

The auction house’s description

A focused offering of loose natural and lab-grown diamonds, featuring a range of shapes, sizes, and qualities?from timeless rounds to fancy cuts?selected for brilliance, balance, and value, ideal for custom settings, upgrades, and collectors.

Full catalog and bidding: view on liveauctioneers.

Catalog Lots (304)

304 lots in Loose Diamonds: Natural & Lab-Grown.

Lot 1 Lab Grown 2.03 ct, Color E/VS2 IGI Graded Diamond $825 - $1,650
Lot 2 Natural 1.5 ct, Color H/SI2 HRD Graded Diamond $6,750 - $13,500
Lot 3 Natural 0.9 ct, Color E/SI1 GIA Graded Diamond $4,500 - $9,000
Lot 4 Lab Grown 1.55 ct, Color E/VS1 IGI Graded Diamond $630 - $1,260
Lot 5 Natural 2 ct, Color M/SI2 GIA Graded Diamond $4,950 - $9,900
Lot 6 Lab Grown 1.05 ct, Color D/VS1 IGI Graded Diamond $330 - $660
Lot 7 Lab Grown 1.05 ct, Color D/VVS2 IGI Graded Diamond $360 - $720
Lot 8 Natural 1.01 ct, Color K/SI3 GIA Graded Diamond $2,700 - $5,400
Lot 9 Lab Grown 1.19 ct, Color E/VS1 IGI Graded Diamond $585 - $1,170
Lot 10 Lab Grown 1.14 ct, Color E/VS1 IGI Graded Diamond $585 - $1,170
Lot 11 Lab Grown 3.6 ct, Color E/VS1 IGI Graded Diamond $2,850 - $5,700
Lot 12 Lab Grown 1.07 ct, Color D/VS1 IGI Graded Diamond $360 - $720

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Frequently Asked Questions

When and where was the Loose Diamonds: Natural & Lab-Grown?

Loose Diamonds: Natural & Lab-Grown was held on Sat, Aug 15, 2026 · 1:00 pm (ET) in Las Vegas, Nevada by Robinhood Auctions.

Is this auction online or in person?

This is an online-only auction, so you bid through the live catalog.

How do I bid or view the catalog?

View the full catalog and register to bid on the live catalog at https://www.liveauctioneers.com/catalog/427926_loose-diamonds-natural-and-lab-grown/.