Loose Diamonds: Natural & Lab-Grown
Updated September 28, 2026
| Date | October 5, 2026 at 4:00 PM EDT |
| Type | Online only |
| Auction house | Robinhood Auctions |
| Lots | 288 |
| Estimates | $330 – $72,000 |
What's in this auction
288 lots, mostly jewelry & watches (288). 288 lots have photos. Pre-sale estimates $330–$72,000 across 288 priced lots. Bidding is online through the auction house's catalog, closing October 5, 2026.
Highest-estimated lots
- Natural 3.71 ct, Color K/VS1 IGI Graded Diamond — est. $36,000–$72,000
- Natural 3.5 ct, Color K/VVS1 GIA Graded Diamond — est. $30,000–$60,000
- Natural 1.71 ct, Color F/SI2 GIA Graded Diamond — est. $14,250–$28,500
- Natural 1.51 ct, Color F/SI1 GIA Graded Diamond — est. $13,500–$27,000
- Natural 1.5 ct, Color G/SI1 GIA Graded Diamond — est. $12,000–$24,000
From the auction house
Upcoming auction: Loose Diamonds: Natural & Lab-Grown. Full catalog and bidding: view on invaluable .
View the full catalog and register to bid →
In this auction (288 lots)
Categories: Jewelry & Watches (288)
- Lot 1 — Lab Grown 7.08 ct, Color G/VS1 IGI Graded Diamond
- Lot 2 — Natural 0.9 ct, Color K/VS1 GIA Graded Diamond
- Lot 3 — Lab Grown 2.01 ct, Color G/VS1 IGI Graded Diamond
- Lot 4 — Lab Grown 1.52 ct, Color E/VS1 IGI Graded Diamond
- Lot 5 — Lab Grown 1.14 ct, Color E/VS1 IGI Graded Diamond
- Lot 6 — Natural 2.02 ct, Color L/VS2 GIA Graded Diamond
- Lot 7 — Lab Grown 1 ct, Color E/VS2 IGI Graded Diamond
- Lot 8 — Lab Grown 2.04 ct, Color E/VVS2 IGI Graded Diamond
- Lot 9 — Lab Grown 2.17 ct, Color D/VS1 IGI Graded Diamond
- Lot 10 — Lab Grown 1.48 ct, Color E/VS1 IGI Graded Diamond
- Lot 11 — Lab Grown 3.09 ct, Color E/VS1 IGI Graded Diamond
- Lot 12 — Natural 0.84 ct, Color G/VVS2 GIA Graded Diamond
- Lot 13 — 2 ct, Color E/VVS2 IGI Graded Diamond
- Lot 14 — Lab Grown 2.05 ct, Color E/VS1 IGI Graded Diamond
- Lot 15 — Lab Grown 1.54 ct, Color D/VVS2 IGI Graded Diamond
- Lot 16 — Lab Grown 1.7 ct, Color E/VS1 IGI Graded Diamond
- Lot 17 — Lab Grown 2.93 ct, Color E/VS1 IGI Graded Diamond
- Lot 18 — 2.04 ct, Color D/VVS2 IGI Graded Diamond
- Lot 19 — Lab Grown 1.13 ct, Color F/VS1 IGI Graded Diamond
- Lot 20 — Lab Grown 2.04 ct, Color E/VVS2 IGI Graded Diamond
- Lot 21 — 2.02 ct, Color E/VVS2 IGI Graded Diamond
- Lot 22 — Lab Grown 3.53 ct, Color E/VS1 IGI Graded Diamond
- Lot 23 — Lab Grown 1.81 ct, Color F/VS1 IGI Graded Diamond
- Lot 24 — Lab Grown 3.06 ct, Color F/VS1 IGI Graded Diamond
- Lot 25 — Lab Grown 2.46 ct, Color E/VS 1 IGI Graded Diamond
- Lot 26 — Lab Grown 3.02 ct, Color F/VS1 IGI Graded Diamond
- Lot 27 — Lab Grown 2.55 ct, Color F/VS1 IGI Graded Diamond
- Lot 28 — Lab Grown 3.01 ct, Color E/VS1 IGI Graded Diamond
- Lot 29 — Lab Grown 7.02 ct, Color F/VS1 IGI Graded Diamond
- Lot 30 — Natural 1.53 ct, Color Fancy Brownish Yellow/ GIA Graded Diamond
- Lot 31 — Lab Grown 1.7 ct, Color E/VS1 IGI Graded Diamond
- Lot 32 — Lab Grown 2.05 ct, Color E/VVS2 IGI Graded Diamond
- Lot 33 — Lab Grown 9.02 ct, Color F/VS1 IGI Graded Diamond
- Lot 34 — Lab Grown 1.09 ct, Color G/VVS2 IGI Graded Diamond
- Lot 35 — Lab Grown 1.5 ct, Color F/VS2 IGI Graded Diamond
- Lot 36 — Natural 1 ct, Color D/SI2 GIA Graded Diamond
- Lot 37 — Natural 2.2 ct, Color Fancy Deep Brownish Yellow/VVS2 GIA Graded Diamond
- Lot 38 — Lab Grown 1.97 ct, Color E/VS1 IGI Graded Diamond
- Lot 39 — Lab Grown 3.02 ct, Color E/VVS2 IGI Graded Diamond
- Lot 40 — Lab Grown 1.82 ct, Color F/VS2 IGI Graded Diamond
- Lot 41 — Natural 1.5 ct, Color L/VS1 GIA Graded Diamond
- Lot 42 — Lab Grown 3.6 ct, Color E/VS1 IGI Graded Diamond
- Lot 43 — Lab Grown 1.5 ct, Color F/VS1 IGI Graded Diamond
- Lot 44 — Lab Grown 1.05 ct, Color D/VS1 IGI Graded Diamond
- Lot 45 — Lab Grown 2.02 ct, Color D/VS1 IGI Graded Diamond
- Lot 46 — Lab Grown 2.04 ct, Color E/VS1 IGI Graded Diamond
- Lot 47 — 2.05 ct, Color E/VVS2 IGI Graded Diamond
- Lot 48 — Natural 1 ct, Color G/SI3 GIA Graded Diamond
- Lot 64 — Lab Grown 1.92 ct, Color G/VVS2 IGI Graded Diamond
- Lot 96 — 2 ct, Color D/VVS2 IGI Graded Diamond
- Lot 49 — 2.08 ct, Color E/VVS2 IGI Graded Diamond
- Lot 50 — Natural 1 ct, Color F/I1 GIA Graded Diamond
- Lot 51 — Lab Grown 5.02 ct, Color G/VVS2 IGI Graded Diamond
- Lot 52 — Lab Grown 3.57 ct, Color E/VS1 IGI Graded Diamond
- Lot 53 — Lab Grown 1.02 ct, Color E/VS1 IGI Graded Diamond
- Lot 54 — Lab Grown 3.01 ct, Color E/VS1 IGI Graded Diamond
- Lot 55 — Natural 1.51 ct, Color Fancy Brownish Yellow/ GIA Graded Diamond
- Lot 56 — Lab Grown 1.03 ct, Color F/VVS2 IGI Graded Diamond
- Lot 57 — Lab Grown 10.03 ct, Color G/VS1 IGI Graded Diamond
- Lot 58 — Natural 1.51 ct, Color F/SI1 GIA Graded Diamond
- Lot 59 — Lab Grown 2 ct, Color F/VS2 IGI Graded Diamond
- Lot 60 — 2.04 ct, Color E/VVS2 IGI Graded Diamond
- Lot 61 — Lab Grown 2.03 ct, Color E/VVS2 IGI Graded Diamond
- Lot 62 — Lab Grown 2.51 ct, Color F/VS1 IGI Graded Diamond
- Lot 63 — Natural 1.5 ct, Color I/SI2 GIA Graded Diamond
- Lot 65 — Lab Grown 2.03 ct, Color E/VS1 IGI Graded Diamond
- Lot 66 — Natural 3.5 ct, Color K/VVS1 GIA Graded Diamond
- Lot 67 — Natural 0.51 ct, Color J/VS1 GIA Graded Diamond
- Lot 68 — Lab Grown 4.05 ct, Color F/VVS2 IGI Graded Diamond
- Lot 69 — Lab Grown 3.54 ct, Color F/VS1 IGI Graded Diamond
- Lot 70 — Lab Grown 1.59 ct, Color E/VS1 IGI Graded Diamond
- Lot 71 — Lab Grown 2.5 ct, Color E/VS1 IGI Graded Diamond
- Lot 72 — Lab Grown 2.11 ct, Color F/VS1 IGI Graded Diamond
- Lot 73 — Lab Grown 1.54 ct, Color E/VS2 IGI Graded Diamond
- Lot 74 — Lab Grown 2.02 ct, Color F/VS1 IGI Graded Diamond
- Lot 75 — 2 ct, Color D/VVS2 IGI Graded Diamond
- Lot 76 — 2.08 ct, Color E/VVS2 IGI Graded Diamond
- Lot 77 — Lab Grown 2.14 ct, Color F/VS1 IGI Graded Diamond
- Lot 78 — Lab Grown 2.01 ct, Color G/VS1 IGI Graded Diamond
- Lot 79 — Lab Grown 2.07 ct, Color F/VS1 IGI Graded Diamond
- Lot 80 — Lab Grown 3.26 ct, Color E/VS1 IGI Graded Diamond
- Lot 81 — Lab Grown 2.09 ct, Color F/VS1 IGI Graded Diamond
- Lot 82 — Natural 1.07 ct, Color Fancy Deep Brownish Greenish Yellow/ GIA Graded Diamond
- Lot 83 — Lab Grown 1.23 ct, Color D/VS1 DSL Graded Diamond
- Lot 84 — Lab Grown 1.08 ct, Color D/VS2 IGI Graded Diamond
- Lot 85 — Lab Grown 3.02 ct, Color E/VS1 IGI Graded Diamond
- Lot 86 — Lab Grown 2.1 ct, Color E/VS1 IGI Graded Diamond
- Lot 87 — Lab Grown 2.01 ct, Color E/VS1 IGI Graded Diamond
- Lot 88 — Lab Grown 1.52 ct, Color E/VVS2 IGI Graded Diamond
- Lot 89 — Natural 0.6 ct, Color D/VVS2 GIA Graded Diamond
- Lot 90 — Lab Grown 1.06 ct, Color F/VS1 IGI Graded Diamond
- Lot 91 — Natural 0.5 ct, Color G/SI2 GIA Graded Diamond
- Lot 92 — Lab Grown 1.54 ct, Color D/VS2 IGI Graded Diamond
- Lot 93 — Lab Grown 2.84 ct, Color E/VS1 IGI Graded Diamond
- Lot 94 — Natural 1 ct, Color G/SI2 GIA Graded Diamond
- Lot 95 — Natural 0.81 ct, Color I/VS2 GIA Graded Diamond
- Lot 97 — Lab Grown 2.02 ct, Color F/VVS2 IGI Graded Diamond
- Lot 98 — Lab Grown 7.02 ct, Color F/VS1 IGI Graded Diamond
- Lot 99 — 2.05 ct, Color E/VVS2 IGI Graded Diamond
- Lot 100 — Natural 0.9 ct, Color E/SI1 GIA Graded Diamond
- Lot 101 — 2 ct, Color E/VVS2 IGI Graded Diamond
- Lot 102 — Lab Grown 1.1 ct, Color F/VVS2 IGI Graded Diamond
- Lot 103 — Lab Grown 2.51 ct, Color D/VS 1 IGI Graded Diamond
- Lot 104 — Lab Grown 5.02 ct, Color G/VS1 IGI Graded Diamond
- Lot 105 — 2.01 ct, Color F/VS1 IGI Graded Diamond
- Lot 106 — Lab Grown 2.01 ct, Color F/VS2 IGI Graded Diamond
- Lot 107 — Lab Grown 1.51 ct, Color D/VS1 DSL Graded Diamond
- Lot 108 — Lab Grown 1.2 ct, Color D/VS1 IGI Graded Diamond
- Lot 109 — Lab Grown 5.02 ct, Color F/VS2 IGI Graded Diamond
- Lot 110 — Lab Grown 1.12 ct, Color E/VS1 IGI Graded Diamond
- Lot 111 — Lab Grown 1.01 ct, Color D/VVS2 IGI Graded Diamond
- Lot 112 — Lab Grown 1.59 ct, Color D/VVS2 IGI Graded Diamond
- Lot 113 — 2.08 ct, Color D/VVS2 IGI Graded Diamond
- Lot 114 — Lab Grown 2.51 ct, Color E/VS1 IGI Graded Diamond
- Lot 115 — Lab Grown 1.03 ct, Color F/VVS2 IGI Graded Diamond
- Lot 116 — Lab Grown 1.05 ct, Color D/VVS2 IGI Graded Diamond
- Lot 117 — Natural 1 ct, Color J/I1 GIA Graded Diamond
- Lot 118 — 2 ct, Color E/VS1 IGI Graded Diamond
- Lot 119 — Natural 0.9 ct, Color E/SI1 GIA Graded Diamond
- Lot 120 — Lab Grown 1 ct, Color D/VVS2 IGI Graded Diamond
- Lot 121 — Lab Grown 1.33 ct, Color E/VS1 IGI Graded Diamond
- Lot 122 — Lab Grown 3.03 ct, Color E/VS1 IGI Graded Diamond
- Lot 123 — Lab Grown 1.1 ct, Color G/VVS2 IGI Graded Diamond
- Lot 124 — Lab Grown 3.01 ct, Color F/VS2 IGI Graded Diamond
- Lot 125 — Lab Grown 1 ct, Color D/VVS2 IGI Graded Diamond
- Lot 126 — Lab Grown 2.74 ct, Color E/VS1 IGI Graded Diamond
- Lot 127 — 2.09 ct, Color E/VVS2 IGI Graded Diamond
- Lot 128 — Lab Grown 3.51 ct, Color FVP/VS2 IGI Graded Diamond
- Lot 129 — Lab Grown 2.54 ct, Color E/VVS2 IGI Graded Diamond
- Lot 130 — Lab Grown 3.22 ct, Color E/VS1 IGI Graded Diamond
- Lot 131 — Lab Grown 1.28 ct, Color E/VS2 IGI Graded Diamond
- Lot 132 — Lab Grown 3.51 ct, Color F/VS1 IGI Graded Diamond
- Lot 133 — Natural 2 ct, Color M/SI2 GIA Graded Diamond
- Lot 134 — Lab Grown 1.55 ct, Color E/VS1 IGI Graded Diamond
- Lot 135 — Lab Grown 2.01 ct, Color F/VS2 IGI Graded Diamond
- Lot 136 — Lab Grown 3.01 ct, Color F/VS2 IGI Graded Diamond
- Lot 137 — Natural 1.31 ct, Color M/SI2 GIA Graded Diamond
- Lot 138 — Lab Grown 2.01 ct, Color E/VS1 IGI Graded Diamond
- Lot 139 — Natural 3.71 ct, Color K/VS1 IGI Graded Diamond
- Lot 140 — Lab Grown 3.01 ct, Color D/VS1 IGI Graded Diamond
- Lot 141 — Lab Grown 2.07 ct, Color F/VS1 IGI Graded Diamond
- Lot 142 — 2.09 ct, Color E/VVS2 IGI Graded Diamond
- Lot 143 — Lab 2.72 ct F/VS1 IGI Graded Diamond
- Lot 144 — Lab Grown 2.05 ct, Color F/VS1 IGI Graded Diamond
- Lot 145 — Natural 0.8 ct, Color E/SI2 GIA Graded Diamond
- Lot 146 — 2.55 ct, Color D/VS1 IGI Graded Diamond
- Lot 147 — Lab Grown 3.54 ct, Color F/VS1 IGI Graded Diamond
- Lot 148 — Lab Grown 3.14 ct, Color F/VS1 IGI Graded Diamond
- Lot 149 — Natural 1.03 ct, Color D/SI2 GIA Graded Diamond
- Lot 150 — 2.02 ct, Color E/VVS2 IGI Graded Diamond
- … and 138 more lots
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