Gemstones catalog

Our constantly growing gemstone collection is the result of many years’ gemological experience, dozens of trips to mining regions and passion for gems. 

36 items on page from 4936 in category
Muzo Vivid Green emerald in octagon cut 7.65 carats, Colombia (GRS) photo
$126,531 / 16,540/ct
Free worldwide shipping
Unheated Intense Blue sapphire in cushion cut 18.62 carats,  Africa photo
$102,410 / 5,500/ct
Free worldwide shipping
Unheated top quality Royal Blue sapphire in cushion cut 9.15 carats, Sri Lanka photo
$119,000 / 13,005/ct
Free worldwide shipping
Unique unheated Cornflower Blue sapphire in oval cut 7.24 carats, Sri Lanka photo
$97,740 / 13,500/ct
Free worldwide shipping
Spinel Mahenge Vibrant Pink-Red cushion cut  6.27 carats, Tanzania  photo
$84,601 / 13,493/ct
Free worldwide shipping
Super rare vivid Vibrant red spinel in cushion cut 6.81 carats, Vietnam  photo
$87,509 / 12,850/ct
Free worldwide shipping
Color change alexandrite in cushion cut 8.07 carats, Sri Lanka photo
$80,581 / 9,985/ct
Free worldwide shipping
Huge Intense green emerald in oval cut 48.33 carats, Colombia photo
$106,326 / 2,200/ct
Free worldwide shipping
Pair of Vibrant Pink-Red Mahenge spinels in cushion cut 10.46 carats, Tanzania  photo
$135,445 / 12,949/ct
Free worldwide shipping
Pair of neon Paraiba tourmalines pear cut 13.44 carats, Mozambique photo
$109,641 / 8,158/ct
Free worldwide shipping
Neon Paraiba tourmaline greenish blue cushion cut 13.12 carats, Mozambique photo
$92,946 / 7,084/ct
Free worldwide shipping
Сobalt spinel сushion cut 7.03 carats, Tanzania, GRS photo
$80,480 / 11,448/ct
Free worldwide shipping
Large neon Paraiba tourmaline pear cut 23.08 carats,  Mozambique photo
$85,182 / 3,691/ct
Free worldwide shipping
Pair of large emeralds oval cu 20.65 carats, Colombia  photo
$93,200 / 4,513/ct
Free worldwide shipping
Emerald octagon cut 17,17 carats, Colombia photo
$120,368 / 7,010/ct
Free worldwide shipping
large tourmaline copper cushion cut 64.12 carats, Africa photo
$122,386 / 1,909/ct
Free worldwide shipping
Large tourmaline Paraiba pear cut 14.69 carats, Africa photo
$119,896 / 8,162/ct
Free worldwide shipping
Neon blue tourmaline Paraiba oval cut 11.74 carats, Africa photo
$98,611 / 8,400/ct
Free worldwide shipping
Unheated ruby rutile Pigoen Blood cushion cut 2.11 carats, Burma (Mogok) photo
$81,211 / 38,489/ct
Free worldwide shipping
Unheated large yellow sapphire round cut 34.15 carats, Sri Lanka photo
$122,364 / 3,583/ct
Free worldwide shipping
Unheated  sapphire Royal Blue octagon cut 7.62 carats, Madagascar photo
$106,517 / 13,979/ct
Free worldwide shipping
Unheated sapphire Royal Blue cushion cut 7.70 carats, Sri Lanka photo
$82,709 / 10,741/ct
Free worldwide shipping
Spinel Mahenge Vibrant pink red cushion cut 6.01 carats, Tanzania   photo
$81,294 / 13,526/ct
Free worldwide shipping
Spinel Mahenge Vivid Pink pear cut 7.92 carats, Tanzania photo
$125,980 / 15,907/ct
Free worldwide shipping
Large Royal blue sapphire in cushion cut 38.90 carats, Sri Lanka photo
$126,782 / 3,259/ct
Free worldwide shipping
Unheated Royal Blue sapphire in oval cut 10.08 carats, Sri Lanka  photo
$131,067 / 13,003/ct
Free worldwide shipping
Rare unheated Vibrant vivid yellow sapphire in octagon cut 28.09 carats, Sri Lanka photo
$127,808 / 4,550/ct
Free worldwide shipping
Unique untreated vivid yellow sapphire in cushion cut 27.51 carats, Sri Lanka photo
$100,053 / 3,637/ct
Free worldwide shipping
Rare alexandrite with strong color change effect in cushion cut 5.21 ct, Sri Lanka photo
$131,464 / 25,233/ct
Free worldwide shipping
Unheated sapphire Vivid Pink cushion cut 7.01 carats, Sri Lanka   photo
$83,738 / 11,946/ct
Free worldwide shipping
Unheated sapphire Royal Blue cushion cut 7.09 carats, Madagascar photo
$113,702 / 16,037/ct
Free worldwide shipping
Unique vivid pink Vietnamese spinel in cushion cut 8.40 carats photo
$86,206 / 10,263/ct
Free worldwide shipping
Beyond rare Vibrant Red Vietnamese spinel in cushion cut 7.42 carats, Luc Yen  photo
$106,701 / 14,380/ct
Free worldwide shipping
Unique Vibrant red type spinel in cushion cut  8.20 carats, Vietnam photo
$112,548 / 13,725/ct
Free worldwide shipping
Unique collector's cobalt spinel with Electric blue color in oval cut 7.10 carats, Tanzania  photo
$135,562 / 19,093/ct
Free worldwide shipping
Royal Blue star sapphire untreated 19.17 ct, Sri Lanka, GRS photo
$104,645 / 5,459/ct
Free worldwide shipping

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

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