Largest Gold & Silver Fine Jewelry Auction

Auction Details

Thank you for your interest in our Luxury Watches, Gold and Silver Fine Jewelry Liquidation. We are proud to present you the most affordable fine jewelry liquidation you can find in Southern California.
Choose Your Layout > Switch to Grid View Switch to List View
Black Tahitian Pearl and Diamond Radiance Pendant1 - Black Tahitian Pearl and Diamond Radiance Pendant
Pacific Global Auction
Black Tahitian Pearl and Diamond Radiance Pendant Chain NOT included 14K White Gold / .05cts
Bidding Has Concluded
Start Price : 370.00 | Estimate : 740.00 - 1,110.00
 
 
Details...Bookmark
Black Tahitian Pearl Classic Solitaire Ring2 - Black Tahitian Pearl Classic Solitaire Ring
Pacific Global Auction
Black Tahitian Pearl Classic Solitaire Ring 5 / 14K White Gold / 11.0-12.0mm
Bidding Has Concluded
Start Price : 590.00 | Estimate : 1,180.00 - 1,770.00
 
 
Details...Bookmark
2016 Silver American Eagle MS-70 NGC (ER, Green Holder)3 - 2016 Silver American Eagle MS-70 NGC (ER, Green Holder)
Pacific Global Auction
2016 Silver American Eagle MS-70 NGC (ER, Green Holder) Your winning item will match the quality of the product shown. Dates will be according
Bidding Has Concluded
Start Price : 170.00 | Estimate : 340.00 - 510.00
 
 
Details...Bookmark
Golden South Sea Pearl Classic Solitaire Ring4 - Golden South Sea Pearl Classic Solitaire Ring
Pacific Global Auction
Golden South Sea Pearl Classic Solitaire Ring 4 / 9.0-10.0mm / 14K White Gold
Bidding Has Concluded
Start Price : 840.00 | Estimate : 1,680.00 - 2,520.00
 
 
Details...Bookmark
14kt White Gold Womens Round Diamond Charmed Heart Pendant 3 Cttw5 - 14kt White Gold Womens Round Diamond Charmed Heart Pendant 3 Cttw
Pacific Global Auction
14kt White Gold Womens Round Diamond Charmed Heart Pendant 3 Cttw Manufacturer's Ref. No.: 151033 Manufacturer's Suggested Retail Price: ...
Bidding Has Concluded
Start Price : 2,660.00 | Estimate : 5,320.00 - 11,180.00
 
 
Details...Bookmark
Gardall 2-Hour Fire Safe - 2.22 Cubic Feet Storage6 - Gardall 2-Hour Fire Safe - 2.22 Cubic Feet Storage
Pacific Global Auction
Gardall 2-Hour Fire Safe - 2.22 Cubic Feet Storage Your winning item will match the quality of the product shown. Dates will be according to li
Bidding Has Concluded
Start Price : 1,460.00 | Estimate : 2,880.00 - 4,320.00
 
 
Details...Bookmark
14kt Yellow Gold Princess Diamond Bridal Wedding Ring Band Set 1/2 Cttw7 - 14kt Yellow Gold Princess Diamond Bridal Wedding Ring Band Set 1/2 Cttw
Pacific Global Auction
14kt Yellow Gold Princess Diamond Bridal Wedding Ring Band Set 1/2 Cttw Manufacturer's Ref. No.: 116694 Manufacturer's Suggested Retail P...
Bidding Has Concluded
Start Price : 560.00 | Estimate : 1,120.00 - 2,350.00
 
 
Details...Bookmark
White South Sea Pearl High-Polish Huggie Hoop Earrings8 - White South Sea Pearl High-Polish Huggie Hoop Earrings
Pacific Global Auction
White South Sea Pearl High-Polish Huggie Hoop Earrings 14K Yellow Gold / 12.0-13.0mm
Bidding Has Concluded
Start Price : 2,270.00 | Estimate : 4,540.00 - 6,810.00
 
 
Details...Bookmark
2017 Tuvalu 5 oz Silver $5 Tyrannosaurus Rex Proof9 - 2017 Tuvalu 5 oz Silver $5 Tyrannosaurus Rex Proof
Pacific Global Auction
2017 Tuvalu 5 oz Silver $5 Tyrannosaurus Rex Proof Your winning item will match the quality of the product shown. Dates will be according to li
Bidding Has Concluded
Start Price : 580.00 | Estimate : 1,160.00 - 1,730.00
 
 
Details...Bookmark
14kt Yellow Gold Round Diamond Cluster Bridal Wedding Engagement Ring 2 Cttw10 - 14kt Yellow Gold Round Diamond Cluster Bridal Wedding Engagement Ring 2 Cttw
Pacific Global Auction
14kt Yellow Gold Round Diamond Cluster Bridal Wedding Engagement Ring 2 Cttw Manufacturer's Ref. No.: 130194 Manufacturer's Suggested Ret...
Bidding Has Concluded
Start Price : 2,170.00 | Estimate : 4,340.00 - 9,120.00
 
 
Details...Bookmark
14kt Yellow Gold Womens Round Diamond Single Row Comfort Wedding Band 1/4 Cttw11 - 14kt Yellow Gold Womens Round Diamond Single Row Comfort Wedding Band 1/4 Cttw
Pacific Global Auction
14kt Yellow Gold Womens Round Diamond Single Row Comfort Wedding Band 1/4 Cttw Manufacturer's Ref. No.: 102057 Manufacturer's Suggested R...
Bidding Has Concluded
Start Price : 320.00 | Estimate : 640.00 - 1,350.00
 
 
Details...Bookmark
1987-S Proof Silver American Eagle PR-69 PCGS12 - 1987-S Proof Silver American Eagle PR-69 PCGS
Pacific Global Auction
1987-S Proof Silver American Eagle PR-69 PCGS Your winning item will match the quality of the product shown. Dates will be according to listing
Bidding Has Concluded
Start Price : 140.00 | Estimate : 270.00 - 400.00
 
 
Details...Bookmark
Natural 2.22 CTW Halo Radiant Cut Split Shank Diamond Engagement Ring 18KT White Gold13 - Natural 2.22 CTW Halo Radiant Cut Split Shank Diamond Engagement Ring 18KT White Gold
Pacific Global Auction
Natural 2.22 CTW Halo Radiant Cut Split Shank Diamond Engagement Ring 18KT White Gold Manufacturer's Suggested Retail Price: $ 19800.00 Center...
Bidding Has Concluded
Start Price : 7,920.00 | Estimate : 12,670.00 - 19,800.00
 
 
Details...Bookmark
Natural 2.62 CTW Round Cut Hidden Halo Diamond Engagement Ring 18KT Rose Gold14 - Natural 2.62 CTW Round Cut Hidden Halo Diamond Engagement Ring 18KT Rose Gold
Pacific Global Auction
Natural 2.62 CTW Round Cut Hidden Halo Diamond Engagement Ring 18KT Rose Gold Manufacturer's Suggested Retail Price: $ 39900.00 Center Stone T...
Bidding Has Concluded
Start Price : 15,960.00 | Estimate : 25,530.00 - 39,900.00
 
 
Details...Bookmark
2014 4-Coin 50th Anniv Kennedy 1/2 Dollar Set SP/PF-70 PCGS (FS)15 - 2014 4-Coin 50th Anniv Kennedy 1/2 Dollar Set SP/PF-70 PCGS (FS)
Pacific Global Auction
2014 4-Coin 50th Anniv Kennedy 1/2 Dollar Set SP/PF-70 PCGS (FS) Your winning item will match the quality of the product shown. Dates will be a
Bidding Has Concluded
Start Price : 500.00 | Estimate : 990.00 - 1,480.00
 
 
Details...Bookmark
White South Sea Pearl and Diamond Constellation Pendant16 - White South Sea Pearl and Diamond Constellation Pendant
Pacific Global Auction
White South Sea Pearl and Diamond Constellation Pendant Chain NOT included 12.0-13.0mm / 14K Yellow Gold
Bidding Has Concluded
Start Price : 1,430.00 | Estimate : 2,860.00 - 4,290.00
 
 
Details...Bookmark
Natural 3.02 CTW Oval Cut Diamond Split Shank Engagement Ring 18KT Rose Gold17 - Natural 3.02 CTW Oval Cut Diamond Split Shank Engagement Ring 18KT Rose Gold
Pacific Global Auction
Natural 3.02 CTW Oval Cut Diamond Split Shank Engagement Ring 18KT Rose Gold Manufacturer's Suggested Retail Price: $ 55400.00 Center Stone Ty...
Bidding Has Concluded
Start Price : 22,140.00 | Estimate : 35,420.00 - 55,400.00
 
 
Details...Bookmark
2013 5-Coin 5 oz Silver ATB Set (America the Beautiful)18 - 2013 5-Coin 5 oz Silver ATB Set (America the Beautiful)
Pacific Global Auction
2013 5-Coin 5 oz Silver ATB Set (America the Beautiful) Your winning item will match the quality of the product shown. Dates will be according
Bidding Has Concluded
Start Price : 1,220.00 | Estimate : 2,400.00 - 3,600.00
 
 
Details...Bookmark
14kt White Gold Unisex Round Black Color Enhanced Diamond Solitaire Earrings 1/4 Cttw19 - 14kt White Gold Unisex Round Black Color Enhanced Diamond Solitaire Earrings 1/4 Cttw
Pacific Global Auction
14kt White Gold Unisex Round Black Color Enhanced Diamond Solitaire Earrings 1/4 Cttw Manufacturer's Ref. No.: 60613 Manufacturer's Sugge...
Bidding Has Concluded
Start Price : 110.00 | Estimate : 220.00 - 440.00
 
 
Details...Bookmark
Natural 2.92 CTW Oval Cut Diamond Engagement Ring 18KT Yellow Gold20 - Natural 2.92 CTW Oval Cut Diamond Engagement Ring 18KT Yellow Gold
Pacific Global Auction
Natural 2.92 CTW Oval Cut Diamond Engagement Ring 18KT Yellow Gold Manufacturer's Suggested Retail Price: $ 51500.00 Center Stone Type: Diamon...
Bidding Has Concluded
Start Price : 20,590.00 | Estimate : 32,940.00 - 51,500.00
 
 
Details...Bookmark
10k Yellow Gold Twisted Round Omega Back Hoop Earrings - 3x25 mm21 - 10k Yellow Gold Twisted Round Omega Back Hoop Earrings - 3x25 mm
Pacific Global Auction
10k Yellow Gold Twisted Round Omega Back Hoop Earrings - 3x25 mm Your winning item will match the quality of the product shown. Dates will be a
Bidding Has Concluded
Start Price : 260.00 | Estimate : 510.00 - 760.00
 
 
Details...Bookmark
14kt Rose Gold Womens Round Diamond Hoop Earrings 1/10 Cttw22 - 14kt Rose Gold Womens Round Diamond Hoop Earrings 1/10 Cttw
Pacific Global Auction
14kt Rose Gold Womens Round Diamond Hoop Earrings 1/10 Cttw Manufacturer's Ref. No.: 153090 Manufacturer's Suggested Retail Price: $ 880....
Bidding Has Concluded
Start Price : 210.00 | Estimate : 420.00 - 880.00
 
 
Details...Bookmark
Pre-Owned Rolex Datejust 1623423 - Pre-Owned Rolex Datejust 16234
Pacific Global Auction
Excellent Pre-Owned Rolex Datejust 16234 Condition: Excellent Pre-owned Authentic Packaging: Comes with generic watch box Paperwork: Comes wi
Bidding Has Concluded
Start Price : 7,070.00 | Estimate : 10,100.00 - 15,000.00
 
 
Details...Bookmark
14kt White Gold Womens Round Diamond Machine-Set Band Ring 1/12 Cttw24 - 14kt White Gold Womens Round Diamond Machine-Set Band Ring 1/12 Cttw
Pacific Global Auction
14kt White Gold Womens Round Diamond Machine-Set Band Ring 1/12 Cttw Manufacturer's Ref. No.: 149174 Manufacturer's Suggested Retail Pric...
Bidding Has Concluded
Start Price : 210.00 | Estimate : 420.00 - 880.00
 
 
Details...Bookmark
14k Yellow Gold Diamond Fascination Petite Hoop Earrings25 - 14k Yellow Gold Diamond Fascination Petite Hoop Earrings
Pacific Global Auction
14k Yellow Gold Diamond Fascination Petite Hoop Earrings Your winning item will match the quality of the product shown. Dates will be according
Bidding Has Concluded
Start Price : 260.00 | Estimate : 510.00 - 760.00
 
 
Details...Bookmark
Natural 2.42 CTW Cushion Cut Diamond Engagement Ring 18KT Yellow Gold26 - Natural 2.42 CTW Cushion Cut Diamond Engagement Ring 18KT Yellow Gold
Pacific Global Auction
Natural 2.42 CTW Cushion Cut Diamond Engagement Ring 18KT Yellow Gold Manufacturer's Suggested Retail Price: $ 22000.00 Center Stone Type: Dia...
Bidding Has Concluded
Start Price : 8,800.00 | Estimate : 14,080.00 - 22,000.00
 
 
Details...Bookmark
Natural 2.92 CTW Halo Cushion Cut Micro Pave Diamond Ring 14KT White Gold27 - Natural 2.92 CTW Halo Cushion Cut Micro Pave Diamond Ring 14KT White Gold
Pacific Global Auction
Natural 2.92 CTW Halo Cushion Cut Micro Pave Diamond Ring 14KT White Gold Manufacturer's Suggested Retail Price: $ 30000.00 Center Stone Type:...
Bidding Has Concluded
Start Price : 12,000.00 | Estimate : 19,200.00 - 30,000.00
 
 
Details...Bookmark
1920 Maine Centennial Half AU28 - 1920 Maine Centennial Half AU
Pacific Global Auction
1920 Maine Centennial Half AU Your winning item will match the quality of the product shown. Dates will be according to listing, may or may not
Bidding Has Concluded
Start Price : 210.00 | Estimate : 410.00 - 620.00
 
 
Details...Bookmark
Natural 1.33 ctw Diamond 3 Stone Ring 14k Yellow Gold29 - Natural 1.33 ctw Diamond 3 Stone Ring 14k Yellow Gold
Pacific Global Auction
Natural 1.33 ctw Diamond 3 Stone Ring 14k Yellow Gold Manufacturer's Suggested Retail Price: $10100.00 Item: Diamond Wedding Ring Total Ge...
Bidding Has Concluded
Start Price : 1,850.00 | Estimate : 3,400.00 - 10,100.00
 
 
Details...Bookmark
14kt White Gold Womens Round Baguette Diamond Cluster Stud Earrings 1/4 Cttw30 - 14kt White Gold Womens Round Baguette Diamond Cluster Stud Earrings 1/4 Cttw
Pacific Global Auction
14kt White Gold Womens Round Baguette Diamond Cluster Stud Earrings 1/4 Cttw Manufacturer's Ref. No.: 44367 Manufacturer's Suggested Reta...
Bidding Has Concluded
Start Price : 280.00 | Estimate : 560.00 - 1,180.00
 
 
Details...Bookmark
1836 Capped Bust Half Dollar Lettered Edge XF-40 PCGS31 - 1836 Capped Bust Half Dollar Lettered Edge XF-40 PCGS
Pacific Global Auction
1836 Capped Bust Half Dollar Lettered Edge XF-40 PCGS Your winning item will match the quality of the product shown. Dates will be according to
Bidding Has Concluded
Start Price : 320.00 | Estimate : 630.00 - 940.00
 
 
Details...Bookmark
Natural 3.72 CTW Canary Cushion Cut Light Yellow Halo Diamond Engagement Ring 18KT Two-tone32 - Natural 3.72 CTW Canary Cushion Cut Light Yellow Halo Diamond Engagement Ring 18KT Two-tone
Pacific Global Auction
Natural 3.72 CTW Canary Cushion Cut Light Yellow Halo Diamond Engagement Ring 18KT Two-tone Manufacturer's Suggested Retail Price: $ 44000.00 ...
Bidding Has Concluded
Start Price : 17,600.00 | Estimate : 28,160.00 - 44,000.00
 
 
Details...Bookmark
Natural 2.42 CTW Canary Yellow Radiant Cut Diamond Ring 14KT Two-tone33 - Natural 2.42 CTW Canary Yellow Radiant Cut Diamond Ring 14KT Two-tone
Pacific Global Auction
Natural 2.42 CTW Canary Yellow Radiant Cut Diamond Ring 14KT Two-tone Manufacturer's Suggested Retail Price: $ 37500.00 Center Stone Type: Dia...
Bidding Has Concluded
Start Price : 14,995.00 | Estimate : 23,990.00 - 37,500.00
 
 
Details...Bookmark
1929 (H-St. Louis) $20 Brown Seal FRBN VF34 - 1929 (H-St. Louis) $20 Brown Seal FRBN VF
Pacific Global Auction
1929 (H-St. Louis) $20 Brown Seal FRBN VF Your winning item will match the quality of the product shown. Dates will be according to listing, ma
Bidding Has Concluded
Start Price : 140.00 | Estimate : 270.00 - 400.00
 
 
Details...Bookmark
14kt White Gold Womens Round Diamond Cluster Earrings 1/4 Cttw35 - 14kt White Gold Womens Round Diamond Cluster Earrings 1/4 Cttw
Pacific Global Auction
14kt White Gold Womens Round Diamond Cluster Earrings 1/4 Cttw Manufacturer's Ref. No.: 152678 Manufacturer's Suggested Retail Price: $ 1...
Bidding Has Concluded
Start Price : 290.00 | Estimate : 580.00 - 1,230.00
 
 
Details...Bookmark
Natural 3.02 CTW Halo Asscher Cut Diamond Engagement Bridal Set 14KT White Gold36 - Natural 3.02 CTW Halo Asscher Cut Diamond Engagement Bridal Set 14KT White Gold
Pacific Global Auction
Natural 3.02 CTW Halo Asscher Cut Diamond Engagement Bridal Set 14KT White Gold Manufacturer's Suggested Retail Price: $ 50000.00 Center Stone...
Bidding Has Concluded
Start Price : 19,995.00 | Estimate : 31,990.00 - 50,000.00
 
 
Details...Bookmark
1930 Buffalo Nickel MS-66 PCGS37 - 1930 Buffalo Nickel MS-66 PCGS
Pacific Global Auction
1930 Buffalo Nickel MS-66 PCGS Your winning item will match the quality of the product shown. Dates will be according to listing, may or may no
Bidding Has Concluded
Start Price : 710.00 | Estimate : 1,420.00 - 2,130.00
 
 
Details...Bookmark
Natural 2.72 CTW Under-Halo Princess Cut Diamond Ring 18KT Rose Gold38 - Natural 2.72 CTW Under-Halo Princess Cut Diamond Ring 18KT Rose Gold
Pacific Global Auction
Natural 2.72 CTW Under-Halo Princess Cut Diamond Ring 18KT Rose Gold Manufacturer's Suggested Retail Price: $ 41200.00 Center Stone Type: Diam...
Bidding Has Concluded
Start Price : 16,470.00 | Estimate : 26,350.00 - 41,200.00
 
 
Details...Bookmark
14kt Yellow Gold Heart Diamond Bridal Wedding Ring Band Set 7/8 Cttw39 - 14kt Yellow Gold Heart Diamond Bridal Wedding Ring Band Set 7/8 Cttw
Pacific Global Auction
14kt Yellow Gold Heart Diamond Bridal Wedding Ring Band Set 7/8 Cttw Manufacturer's Ref. No.: 112523 Manufacturer's Suggested Retail Pric...
Bidding Has Concluded
Start Price : 1,680.00 | Estimate : 3,360.00 - 7,060.00
 
 
Details...Bookmark
1891-CC Morgan Dollar MS-64 NGC40 - 1891-CC Morgan Dollar MS-64 NGC
Pacific Global Auction
1891-CC Morgan Dollar MS-64 NGC Your winning item will match the quality of the product shown. Dates will be according to listing, may or may n
Bidding Has Concluded
Start Price : 1,350.00 | Estimate : 2,640.00 - 4,080.00
 
 
Details...Bookmark
Natural 5.12 CTW Halo Asscher Cut Split Shank Diamond Engagement Ring 14KT White Gold41 - Natural 5.12 CTW Halo Asscher Cut Split Shank Diamond Engagement Ring 14KT White Gold
Pacific Global Auction
Natural 5.12 CTW Halo Asscher Cut Split Shank Diamond Engagement Ring 14KT White Gold Manufacturer's Suggested Retail Price: $ 140000.00 Cente...
Bidding Has Concluded
Start Price : 56,000.00 | Estimate : 89,600.00 - 140,000.00
 
 
Details...Bookmark
Natural 2.52 CTW Under-Halo Cushion Cut Diamond Ring 14KT Rose Gold42 - Natural 2.52 CTW Under-Halo Cushion Cut Diamond Ring 14KT Rose Gold
Pacific Global Auction
Natural 2.52 CTW Under-Halo Cushion Cut Diamond Ring 14KT Rose Gold Manufacturer's Suggested Retail Price: $ 22000.00 Center Stone Type: Diamo...
Bidding Has Concluded
Start Price : 8,800.00 | Estimate : 14,080.00 - 22,000.00
 
 
Details...Bookmark
14k Rose Gold 1.65 mm Solid Polished Spiga Chain - 20 in.43 - 14k Rose Gold 1.65 mm Solid Polished Spiga Chain - 20 in.
Pacific Global Auction
14k Rose Gold 1.65 mm Solid Polished Spiga Chain - 20 in. Your winning item will match the quality of the product shown. Dates will be accordin
Bidding Has Concluded
Start Price : 700.00 | Estimate : 1,400.00 - 2,090.00
 
 
Details...Bookmark
Natural 2.02 CTW Princess Cut Diamond Engagement Set 18KT White Gold44 - Natural 2.02 CTW Princess Cut Diamond Engagement Set 18KT White Gold
Pacific Global Auction
Natural 2.02 CTW Princess Cut Diamond Engagement Set 18KT White Gold Manufacturer's Suggested Retail Price: $ 26400.00 Center Stone Type: Diam...
Bidding Has Concluded
Start Price : 10,550.00 | Estimate : 16,880.00 - 26,400.00
 
 
Details...Bookmark
White Akoya Pearl Necklace, 8.0-8.5mm45 - White Akoya Pearl Necklace, 8.0-8.5mm
Pacific Global Auction
White Akoya Pearl Necklace, 8.0-8.5mm AA+ / 18" / 14kt Yellow Gold Ball Clasp
Bidding Has Concluded
Start Price : 1,640.00 | Estimate : 3,280.00 - 4,920.00
 
 
Details...Bookmark
China 1 oz Gold Panda BU (Random Year, Sealed)46 - China 1 oz Gold Panda BU (Random Year, Sealed)
Pacific Global Auction
China 1 oz Gold Panda BU (Random Year, Sealed) Your winning item will match the quality of the product shown. Dates will be according to listin
Bidding Has Concluded
Start Price : 2,500.00 | Estimate : 5,040.00 - 7,440.00
 
 
Details...Bookmark
Natural 0.75 ctw Diamond Antique Ring 14k White Gold47 - Natural 0.75 ctw Diamond Antique Ring 14k White Gold
Pacific Global Auction
Natural 0.75 ctw Diamond Antique Ring 14k White Gold Manufacturer's Suggested Retail Price: $5000.00 Item: Diamond Wedding Ring Total Gem ...
Bidding Has Concluded
Start Price : 1,030.00 | Estimate : 1,900.00 - 5,000.00
 
 
Details...Bookmark
Natural 1.82 CTW Cushion Cut Diamond Engagement Set 18KT White Gold48 - Natural 1.82 CTW Cushion Cut Diamond Engagement Set 18KT White Gold
Pacific Global Auction
Natural 1.82 CTW Cushion Cut Diamond Engagement Set 18KT White Gold Manufacturer's Suggested Retail Price: $ 19900.00 Center Stone Type: Diamo...
Bidding Has Concluded
Start Price : 7,930.00 | Estimate : 12,680.00 - 19,900.00
 
 
Details...Bookmark
1840-1873 Liberty Seated Dollar Fine49 - 1840-1873 Liberty Seated Dollar Fine
Pacific Global Auction
1840-1873 Liberty Seated Dollar Fine Your winning item will match the quality of the product shown. Dates will be according to listing, may or
Bidding Has Concluded
Start Price : 570.00 | Estimate : 1,130.00 - 1,700.00
 
 
Details...Bookmark
Natural 1.72 CTW Radiant Cut Diamond Engagement Ring 18KT White Gold50 - Natural 1.72 CTW Radiant Cut Diamond Engagement Ring 18KT White Gold
Pacific Global Auction
Natural 1.72 CTW Radiant Cut Diamond Engagement Ring 18KT White Gold Manufacturer's Suggested Retail Price: $ 8800.00 Center Stone Type: Diamo...
Bidding Has Concluded
Start Price : 3,520.00 | Estimate : 5,630.00 - 8,800.00
 
 
Details...Bookmark