Ruby$11,800+1.4%Sapphire$86,000-0.4%Sapphire$11,500+1.8%Emerald$34,000+1.3%Emerald$13,200+2.6%Paraíba Tourmaline$42,000+4.7%Paraíba Tourmaline$13,000+3.1%Spinel$6,200+0.6%Cobalt Spinel$21,000+5.2%
WORLDWIDE LAUNCHFebruary 2027
Home / Vault Trade / Spinel / CGEMX-N-0238
Grey Spinel, no heat
ILLUSTRATION · DEMONSTRATION LISTING
NO TREATMENTSSEFMAHENGE, TANZANIA

Grey Spinel, no heat

4.12 ct · SSEF · Mahenge, Tanzania
Demonstration listing. This stone, its report number and its seller are illustrative, to show how the exchange works. Real listings open with trading in February 2027.
ASKING PRICE
$12,400
$3,010 / ct
OFFERS
No offers yet
OFFER ACTIVITY NONE
No offers yet. Offers are private — the seller sees your amount, no one else does.
SpeciesSpinel
Weight4.12 ct
Dimensions10.60 × 8.44 × 5.70 mm
CutOval
ColourSteel grey
LocationMahenge, Tanzania
EnhancementNo treatment
LaboratorySSEF
ReportSSEF-119268
Date09 Jun 2026
VaultBangkok
Intake19 Jun 2026
SELLER

✓ Verified store

Demonstration · Bangkok

Spinel

View all
VAULT TRADE
$10,800
$4,821 / ct
2 live offers
Mahenge Spinel, vivid pink
2.24 ct · GRS · Natural · Tanzania
VAULT TRADE
$44,600
$30,135 / ct
3 live offers
Cobalt Spinel
1.48 ct · GRS · Natural · Vietnam
VAULT TRADE
$23,000
$7,986 / ct
1 live offer
Mahenge Spinel, vivid red
2.88 ct · GRS · Natural · Tanzania
COMPARE
Compare