Large Carat IGI certified Diamonds & Wholesale Jewelry | Day 1

Updated September 5, 2026

What's in this auction

500 lots, mostly jewelry & watches (498). 500 lots have photos. Bidding is online through the auction house's catalog.

From the auction house

Lab Grown Auctions is proud to offer 100% conflict-free diamonds that are ethically grown in state-of-the-art facilities. We take great pride in our environmentally conscious approach to selling beautiful diamonds and make responsible choices that prioritize the well-being of life on our planet. Full catalog and bidding: view on bidsquare .

In this auction (500 lots)

Categories: Jewelry & Watches (498)

• Lot 1 — 10.53 carat diamond pair, Round cut Diamonds IGI Graded
• Lot 2 — 18 Kt White Gold 21.76 ct Pear cut Diamond Necklace
• Lot 3 — 18.28 ct, G/VS1, Emerald cut IGI Graded Diamond
• Lot 4 — 10.01 ct, Fancy Vivid Blue/VS2, Oval cut IGI Graded Diamond
• Lot 5 — 5.02 ct, D/VVS1, Radiant cut IGI Graded Diamond
• Lot 6 — 10.11 ct, F/VVS2, Round cut IGI Graded Diamond
• Lot 7 — 8.18 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 8 — 5.52 ct, D/VVS2, Cushion cut IGI Graded Diamond
• Lot 9 — Platinum 3.5ct Emerald cut Diamond and Green Emeralds Flush Fit Band Set
• Lot 10 — 4.63 ct, Fancy Vivid Pink/VS1, Radiant cut IGI Graded Diamond
• Lot 11 — 4.01 ct, Fancy Vivid Blue/VS2, Pear cut IGI Graded Diamond
• Lot 12 — 14 Kt Yellow Gold 110 ct Emerald cut Diamond Necklace
• Lot 13 — 10.79 ct, Fancy Vivid Pink/VS1, Pear cut IGI Graded Diamond
• Lot 14 — 18 kt White Gold 1.9ct Cushion Cut Diamond Vintage Inspired Art Deco Ring
• Lot 15 — 3.51 ct, Fancy Vivid Pink/VVS2, Heart cut IGI Graded Diamond
• Lot 16 — 4.98 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 17 — 4.52 ct, Fancy Vivid Pink/VS1, Heart cut IGI Graded Diamond
• Lot 18 — 18kt White Gold 1.84ct. Emerald cut Diamond Eternity Ring
• Lot 19 — 5.06 ct, Fancy Vivid Green/VS2, Round cut IGI Graded Diamond
• Lot 20 — 14 Kt White Gold 62.65 ct Pear cut Diamond Necklace
• Lot 21 — 2.01 ct, D/VS2, Square Emerald cut IGI Graded Diamond
• Lot 22 — 18kt Yellow Gold 6.9ct Emerald cut Diamond Ring with Emerald cut side Diamonds
• Lot 23 — 8.25 carat diamond pair, Pear cut Diamonds IGI Graded
• Lot 24 — 3.09 ct, E/VVS2, European cut IGI Graded Diamond
• Lot 25 — 14kt White Gold 3.5ct Engagement Ring with Accented Matching Band Set
• Lot 26 — 8.76 ct, E/VVS2, Radiant cut IGI Graded Diamond
• Lot 27 — 14kt Yellow Gold 1.71ct Emerald Diamond Satellite Bangle
• Lot 28 — 10.03 ct, G/VS1, Princess cut IGI Graded Diamond
• Lot 29 — 12.17 carat diamond pair, Round cut Diamonds IGI Graded
• Lot 30 — 6.04 ct, F/VS1, Round cut IGI Graded Diamond
• Lot 31 — 9.47 carat diamond pair, Pear cut Diamonds IGI Graded
• Lot 32 — 2.50 ct, D/VS1, Cushion cut IGI Graded Diamond
• Lot 33 — 14kt Yellow Gold 2.5ct Vintage Engagement Contour Diamond Ring Band Set
• Lot 34 — 5.10 ct, F/VS1, Oval cut IGI Graded Diamond
• Lot 35 — 14Kt White Gold 65 ct. Diamond Round Tennis Necklace
• Lot 36 — 7.03 ct, Fancy Intense Yellow/VS2, Heart cut IGI Graded Diamond
• Lot 37 — 14 Kt White Gold 67.11 ct Pear cut & Fancy Yellow Diamond Necklace
• Lot 38 — 4.73 ct, Fancy Vivid Green/VVS2, Cushion cut IGI Graded Diamond
• Lot 39 — 11.22 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 40 — 15.06 ct, Fancy Intense Pink/VVS2, Oval cut IGI Graded Diamond
• Lot 41 — 14kt White Gold 22.7ct Marquise and Pear cut Diamonds Stackable Eternity Band Set
• Lot 42 — 7.02 ct, Fancy Vivid Green/VVS2, Pear cut IGI Graded Diamond
• Lot 43 — 4.42 ct, Round Brilliant cut Labgrown Ruby IGI Graded
• Lot 44 — 5.16 ct, Fancy Vivid Yellow/VS2, Cushion cut IGI Graded Diamond
• Lot 45 — 14 Kt White Gold 26.59 ct Marquise cut Diamond Necklace
• Lot 46 — 10.09 ct, F/VVS2, Princess cut IGI Graded Diamond
• Lot 47 — 14.05 carat diamond pair, Round cut Diamonds IGI Graded
• Lot 48 — 9.97 ct, E/VVS2, Hexagonal cut IGI Graded Diamond
• Lot 49 — 14 Kt White Gold 28.07 ct Marquise cut Diamond Necklace
• Lot 50 — 6.10 ct, Fancy Vivid Yellow/VVS2, Cushion cut IGI Graded Diamond
• Lot 51 — 14kt White Gold 16.83ct Marquise Diamond Tennis Bracelet
• Lot 52 — 4.10 ct, E/VVS1, Emerald cut IGI Graded Diamond
• Lot 53 — 9.09 carat diamond pair, Cushion cut Diamonds IGI Graded
• Lot 54 — 20.01 ct, Fancy Vivid Pink/VS2, Pear cut IGI Graded Diamond
• Lot 55 — 14 Kt White Gold 99.5 ct Oval cut Diamond Necklace
• Lot 56 — 9.06 ct, F/VVS2, Round cut IGI Graded Diamond
• Lot 57 — 18kt Yellow Gold 3.5ct 3ct Emerald cut Diamonds with Green Emerald Art Deco Ring
• Lot 58 — 3.00 ct, D/VVS2, European cut IGI Graded Diamond
• Lot 59 — Platinum 14ct Green Emerald And Diamond Fancy Bracelet
• Lot 72 — 5.00 ct, Fancy Vivid Pink/VVS2, Oval cut IGI Graded Diamond
• Lot 73 — 8.06 carat diamond pair, Round cut Diamonds IGI Graded
• Lot 74 — 3.51 ct, E/VVS2, Radiant cut IGI Graded Diamond
• Lot 75 — 14kt Yellow Gold 3.5ct Oval cut Diamonds Engagement Ring with Sunburst Contour Band Set
• Lot 76 — 4.50 ct, Fancy Vivid Pink/VVS2, Cushion cut IGI Graded Diamond
• Lot 77 — 14kt White Gold 13.06ct Blue Sapphire And Diamond Fancy Bracelet
• Lot 78 — 2.02 ct, Fancy Vivid Pink/VS1, Cushion cut IGI Graded Diamond
• Lot 79 — Platinum 135.63 ct Multi- cut Diamond Necklace
• Lot 80 — 15.02 ct, Fancy Vivid Pink/VS1, Pear cut IGI Graded Diamond
• Lot 81 — 5.05 ct, E/VS1, Round cut IGI Graded Diamond
• Lot 82 — 8.62 carat diamond pair, Marquise cut Diamonds IGI Graded
• Lot 83 — 5.05 ct, Fancy Vivid Blue/VS1, Cushion cut IGI Graded Diamond
• Lot 84 — 14kt Yellow Gold 2.96ct 2-Pear cut Diamonds Solitaire Ring
• Lot 85 — 4.08 ct, D/VVS2, Princess cut IGI Graded Diamond
• Lot 86 — 14 kt White Gold 1.55ct Oval Cut Engagement Ring
• Lot 87 — 10.01 ct, G/VS1, Round cut IGI Graded Diamond
• Lot 88 — 4.44 ct, Round Brilliant cut Labgrown Ruby IGI Graded
• Lot 89 — 5.01 ct, Fancy Vivid Yellow/VS1, Oval cut IGI Graded Diamond
• Lot 90 — 10.18 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 91 — 10.05 ct, E/VS1, Heart cut IGI Graded Diamond
• Lot 92 — 8.52 carat diamond pair, Cushion cut Diamonds IGI Graded
• Lot 93 — 2.51 ct, D/VVS1, Pear cut IGI Graded Diamond
• Lot 94 — 10.26 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 95 — 5.07 ct, Fancy Vivid Blue/VS1, Oval cut IGI Graded Diamond
• Lot 96 — 9.52 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 97 — 5.03 ct, Fancy Vivid Blue/VS1, Pear cut IGI Graded Diamond
• Lot 98 — 5.71 ct, Oval Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 99 — 10.00 ct, F/VVS2, Round cut IGI Graded Diamond
• Lot 100 — 14 Kt White Gold 30.2 ct Heart cut Diamond Necklace
• Lot 101 — 15.02 ct, Fancy Vivid Blue/VS1, Cushion cut IGI Graded Diamond
• Lot 102 — 2.11 ct, Fancy Vivid Pink/VS1, Radiant cut IGI Graded Diamond
• Lot 103 — 7.66 ct, Fancy Vivid Pink/VS1, Oval cut IGI Graded Diamond
• Lot 104 — 14 kt Yellow Gold 2.6ct Round Cut Diamond Ring with Pave Matching Band
• Lot 105 — 2.32 ct, D/IF, Marquise cut IGI Graded Diamond
• Lot 106 — 18 Kt White Gold 24.86 ct Multi- cut Diamond Necklace
• Lot 107 — 5.05 ct, Fancy Vivid Pink/VVS2, Pear cut IGI Graded Diamond
• Lot 108 — 14kt White Gold 8.58 ct Emerald Cut Diamond Eternity Band
• Lot 109 — 3.09 ct, E/VS1, Oval cut IGI Graded Diamond
• Lot 110 — 2.51 ct, E/VS2, Princess cut IGI Graded Diamond
• Lot 111 — 8.45 carat diamond pair, Pear cut Diamonds IGI Graded
• Lot 112 — 11.31 ct, F/VVS2, Oval Polygon cut IGI Graded Diamond
• Lot 113 — 14kt 2-Tone Gold 5.8ct Two Tone Fancy Yellow Radiant And Pear cut Diamond Eternity Band
• Lot 114 — 5.02 ct, Fancy Intense Pink/VS1, Heart cut IGI Graded Diamond
• Lot 115 — 8.56 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 116 — 3.55 ct, Fancy Intense Yellow/VVS2, Cushion cut IGI Graded Diamond
• Lot 117 — 8.34 carat diamond pair, Pear cut Diamonds IGI Graded
• Lot 118 — 7.05 ct, Fancy Vivid Blue/VS1, Oval cut IGI Graded Diamond
• Lot 119 — 14kt 2-Tone Gold 15.38ct Two Tone Color Mix Cut Diamond Bracelet
• Lot 120 — 2.94 ct, E/VS2, Oval cut IGI Graded Diamond
• Lot 121 — 13.31 carat diamond pair, Emerald cut Diamonds IGI Graded
• Lot 122 — 7.00 ct, E/VS1, Heart cut IGI Graded Diamond
• Lot 123 — 5.56 ct, Fancy Vivid Pink/VVS2, Radiant cut IGI Graded Diamond
• Lot 124 — 5.05 ct, E/VVS2, Round cut IGI Graded Diamond
• Lot 125 — 6.39 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 126 — 5.09 ct, F/VVS2, Round cut IGI Graded Diamond
• Lot 127 — 8.10 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 128 — 3.51 ct, Fancy Vivid Blue/VS1, Marquise cut IGI Graded Diamond
• Lot 129 — 8.24 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 130 — 8.05 ct, Fancy Intense Yellow/VS1, Cushion cut IGI Graded Diamond
• Lot 131 — 18 kt White Gold 4.8ct Round Cut Diamond with Pave Infinity Twist Design Ring
• Lot 132 — 8.00 ct, E/VS1, Heart cut IGI Graded Diamond
• Lot 133 — 14kt White Gold 14.61ct Amethyst And Diamond Fancy Bracelet
• Lot 134 — 2.50 ct, F/VVS2, Radiant cut IGI Graded Diamond
• Lot 135 — 14kt White Gold 5.4ct Ruby & Diamond Bracelet
• Lot 136 — 2.57 ct, Fancy Vivid Blue/VVS2, Oval cut IGI Graded Diamond
• Lot 137 — 10.08 carat diamond pair, Round cut Diamonds IGI Graded
• Lot 138 — 6.01 ct, Fancy Vivid Blue/VS2, Pear cut IGI Graded Diamond
• Lot 139 — 4.45 ct, Pear Mixed Cut cut Labgrown Sapphire IGI Graded
• Lot 140 — 3.03 ct, D/VVS1, Princess cut IGI Graded Diamond
• Lot 141 — 8.48 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 142 — 7.02 ct, E/VVS1, Heart cut IGI Graded Diamond
• Lot 143 — 9.66 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 144 — 2.53 ct, Fancy Vivid Green/VVS2, Pear cut IGI Graded Diamond
• Lot 145 — 14kt White Gold 14.75ct Blue Sapphire And Diamond Fancy Bracelet
• Lot 146 — 3.09 ct, E/VVS1, Oval cut IGI Graded Diamond
• Lot 147 — 18 kt White Gold 3.5ct Cushion Cut Engagement Ring
• Lot 148 — Platinum 8ct Emerald cut Diamond with Sapphire Band Set
• Lot 149 — 10.03 ct, Fancy Vivid Pink/VS1, Oval cut IGI Graded Diamond
• Lot 150 — 10.92 carat diamond pair, Marquise cut Diamonds IGI Graded
• Lot 151 — 5.02 ct, Fancy Vivid Green/VS1, Emerald cut IGI Graded Diamond
• Lot 152 — 8.51 carat diamond pair, Oval cut Diamonds IGI Graded
• Lot 153 — 4.44 ct, Round Brilliant cut Labgrown Ruby IGI Graded
• Lot 154 — 4.03 ct, Fancy Intense Pink/VS2, Emerald cut IGI Graded Diamond
• Lot 155 — 12.18 carat diamond pair, Radiant cut Diamonds IGI Graded
• Lot 156 — 3.98 ct, Fancy Vivid Pink/VS1, Pear cut IGI Graded Diamond
• Lot 157 — 14 Kt White Gold 40.22 ct Emerald cut Diamond Necklace
• Lot 158 — 7.03 ct, F/VS2, Pear cut IGI Graded Diamond
• Lot 159 — 14 Kt White Gold 21.04 ct Emerald cut Diamond Necklace
• Lot 160 — 15.04 ct, Fancy Vivid Green/VS2, Heart cut IGI Graded Diamond
• Lot 161 — 14kt White Gold 26.43ct Ruby And Round Diamond Fancy Bracelet
• Lot 162 — 4.02 ct, Fancy Intense Yellow/VS1, Pear cut IGI Graded Diamond
• … and 350 more lots

More auctions in Wyoming

• Dr. Jerry & Kay Youmans Estate — Casper · September 22, 2026
• Moving Sale 09_22_26 — Rock Springs · September 22, 2026
• Swenson's September Outdoor Field Online Auction — Powell · September 23, 2026
• 2026 AZLE • SEP24 HOT DEALS, COOL PRICES — Powell · September 24, 2026
• Chinese Antique (Timeless Treasures) — Casper · September 25, 2026

All upcoming auctions in Wyoming →