Investment stones
Ultra-rare assets with long-term growth potential. Hand-selected for collectors and investors seeking portable, appreciating and sustainable portfolios of alternative investments.
36 items on page from 44 in category
Vivid Green Emerald with rare Mariposa effect in octagon cut 5.16 Carats, Colombia
$63,919 / 12,387/ct
Free worldwide shipping
Vivid Green emerald with rare Butterfly-wing effect Mariposa in octagon cut 5.67 carats, Colombia
$55,346 / 9,761/ct
Free worldwide shipping
Investment-grade neon-blue Paraiba tourmaline, cushion cut, 5.26 carats, Brazil, GRS, GIA
$289,300 / 55,000/ct
Free worldwide shipping
Investment Royal Blue sapphire in oval cut 50.09 ct, Sri Lanka, GRS
$679,853 / 13,573/ct
Free worldwide shipping
Super rare vivid Vibrant red spinel in cushion cut 6.81 carats, Vietnam
$91,918 / 13,498/ct
Free worldwide shipping
Large green Paraiba tourmaline oval cut 32.62 carats, Mozambique
$424,060 / 13,000/ct
Free worldwide shipping
Investment grade Vibrant Pigeon Blood ruby cushion cut 14.05 carats, Madagascar (GRS, AGL, SSEF)
$1,643,850 / 117,000/ct
Free worldwide shipping
Large tourmaline Paraiba pear cut 14.69 carats, Africa
$189,676 / 12,912/ct
Free worldwide shipping
Spinel Intense red cushion cut 9.37 carats, Vietnam
$68,889 / 7,352/ct
Free worldwide shipping
Unheated yellow Golden color sapphire in radiant cut 15.90 carats, Sri Lanka
$66,618 / 4,190/ct
Free worldwide shipping
Unheated yellow sapphire cushion cut 45.46 carats, Sri Lanka
$163,656 / 3,600/ct
Free worldwide shipping
Unheated Golden color sapphire 15.04 carats in octagon cut, Sri Lanka
$53,542 / 3,560/ct
Free worldwide shipping
Unheated large Golden Yellow sapphire in radiant cut 13.12 carats, Sri Lanka
$45,920 / 3,500/ct
Free worldwide shipping
Rare top quality unheated Padparadscha sapphire in cushion cut 4.12 carats, Madagascar
$59,120 / 14,350/ct
Free worldwide shipping
Unheated Pigeon's Blood red ruby in oval cut 5.27 carats, Burma (Mogok), GRS, SSEF
$704,900 / 133,757/ct
Free worldwide shipping
Unique unheated Cornflower Blue sapphire in oval cut 7.24 carats, Sri Lanka
$91,396 / 12,624/ct
Free worldwide shipping
Unheated Golden Yellow sapphire in octagon cut 7.23 carats, Sri Lanka
$28,081 / 3,884/ct
Free worldwide shipping
Unheated top quality Royal Blue sapphire in cushion cut 9.15 carats, Sri Lanka
$119,000 / 13,005/ct
Free worldwide shipping
Unheated sapphire Padparadscha pear cut 3.04 carats, Madagascar
$34,963 / 11,501/ct
Free worldwide shipping
Unheated Padparadscha sapphire oval cut 8.25 carats, Sri Lanka
$90,750 / 11,000/ct
Free worldwide shipping
Unheated top Golden color sapphire in radiant cut 10.20 carats, Sri Lanka
$37,976 / 3,723/ct
Free worldwide shipping
Unheated sapphire Vivid Yellow octagon 15.10 carats, Sri Lanka
$71,725 / 4,750/ct
Free worldwide shipping
Pair of Vibrant Pink-Red Mahenge spinels in cushion cut 10.46 carats, Tanzania
$191,009 / 18,261/ct
Free worldwide shipping
Vibrant Pink Red Mahenge spinel in heart shape 3.71 carats, Tanzania
$48,490 / 13,070/ct
Free worldwide shipping
Spinel Vivid Red cushion cut 7.92 carats, Vietnam
$52,335 / 6,608/ct
Free worldwide shipping
Unique Muzo Green emerald in asher cut 7.03 carats, Colombia
$126,540
Item is sold
Investment Golden Yellow unheated sapphire in cushion cut 30.50 carats, Sri Lanka
$213,500
Item is sold
Investment unheated Royal Blue sapphire in octagon cut 15.20 carats, Burma (SSEF, GRS, GIA)
$341,775
Item is sold
Unheated Intense Cornflower Blue sapphire in octagon cut 12.43 carats, Kashmir SSEF / Gubelin / GRS
$1,695,000
Item is sold
Collectible unheated Cornflower Blue sapphire in cushion cut 22 carats, Sri Lanka, GRS
$321,200
Item is sold
Investment unheated Ceylon Padparadscha sapphire in cushion cut 6.17 ct, SSEF
$182,015
Item is sold
Large Royal blue sapphire in cushion cut 38.90 carats, Sri Lanka
$126,782
Item is sold
Spinel Intence red cushion cut 11.14 carats, Vietnam
$55,035
Item is sold
Unheated Pigeon's Blood red ruby in oval cut 5.13 carats, Mozambique
$230,850
Item is sold
Unheated sapphire Golden Yellow cushion cut 15.15 carats, Sri Lanka
$79,547
Item is sold
Unheated Intense Blue sapphire in cushion cut 18.62 carats, Africa
$102,410
Item is sold
GEMSTOCK.ORG COMPANY LIMITED, Tax ID: 0105561148825
919/1, Jewelry Trade Center, 2nd Floor, Room No. 201, Si Lom Road, Si Lom Sub-district, Bang Rak District, Bangkok, Thailand 10500
+66613953588