About Preciousgems - Precious Metals and Petroleum Products Supplier in United Kingdom

Based in London, United Kingdom, Preciousgems lists eight active products across the precious metals and petroleum sectors. The catalogue includes high‑grade crude oil, gold bullion, petroleum, LPG, raw gold, platinum, jet fuel and cut diamonds, each identified with its respective HS‑code family. The company’s top categories comprise kerosene oil, crude oil, petroleum by‑products, petrol, gold, silver, diamonds & gemstones, marine oil, glass cutter and precious metals. All products are described with material specifications such as 99.99 % Au for bullion or a 60‑40 % propane‑butane blend for LPG. The supplier’s tier is recorded as “organic” and its trust tier as “harbor”.

The high grade crude oil entry is recorded under HS 1507.10 and is described as non‑GMO corn oil, while the gold bullion and raw gold entries share HS 7108.12 and specify 99.99 % Au (24 karat) in unwrought form. Petroleum is listed under HS 2709.00 as an unrefined hydrocarbon mixture, and jet fuel appears under HS 2710.11 as a refined kerosene‑type blend dominated by C9‑C16 alkanes. LPG is catalogued with HS 2711.19 and a typical 60 % propane, 40 % butane composition. Platinum is identified by HS 7110.21 with a purity of 99.95 % Pt, and cut diamonds are recorded under HS 7102.39 as natural carbon crystals whose clarity grade varies per stone.

Product Range and Specialties of Preciousgems

Preciousgems’ catalogue covers eight distinct items: high‑grade crude oil (HS 1507.10, non‑GMO corn oil), gold bullion and raw gold (HS 7108.12, 99.99 % Au), petroleum (HS 2709.00, unrefined hydrocarbon mix), LPG (HS 2711.19, typical 60 % propane/40 % butane), platinum (HS 7110.21, 99.95 % Pt), jet fuel (HS 2710.11, kerosene‑type blend meeting ASTM D1655), and cut diamonds (HS 7102.39, natural carbon crystals). In the broader market, crude oil grades are assessed by API gravity and sulfur content, with API 30‑40 ° being common for fuel‑grade oils. Gold bullion is routinely certified to 99.99 % purity and accompanied by an assay report. LPG shipments are subject to ISO 8217 specifications for propane‑butane ratios and require safety data sheets. Jet fuel must comply with ASTM D1655 or DEF STAN 91‑91, including flash point, sulfur limit (<30 ppm) and density specifications. Platinum purity of 99.95 % aligns with the “four‑nine” standard used in catalytic and jewelry applications. Cut diamonds are graded by the 4Cs (carat, cut, color, clarity) and often require a Kimberley Process Certificate for trade.

Trade and Export Information - Preciousgems

The United Kingdom exports refined petroleum products and precious metals to regions including the European Union, Asia-Pacific, and the Middle East, with bulk shipments typically using 20‑ft or 40‑ft containers for LPG and drums for crude oil, while gold and platinum are often transported in secure sealed cases. HS‑code families 1507, 2709, 2710, 2711, 7108, 7110 and 7102 are monitored by customs authorities for accurate tariff classification and may trigger anti‑dumping duties in certain importing countries. Buyers commonly request ISO 9001 quality management certification, SGS inspection reports for metals, and compliance with REACH for chemical products such as LPG. For diamonds, the Kimberley Process Certificate is a standard requirement to prove conflict‑free origin. Typical Incoterms used by UK exporters of these goods are FOB London or CIF for maritime shipments, with packaging ranging from 200‑liter steel drums for LPG to 25‑kg sealed boxes for gold bars.

Sourcing from Preciousgems - Buyer Guidance

When sourcing from Preciousgems, buyers should request a recent assay report for gold and platinum to verify the 99.99 % and 99.95 % purity claims, as well as an SGS or equivalent laboratory test report for the crude oil and LPG composition. For jet fuel, a compliance certificate to ASTM D1655 and a material safety data sheet (MSDS) are standard documents to confirm fuel grade and safety handling. Diamond purchases should be accompanied by a Kimberley Process Certificate and a gemological grading report that details carat weight and clarity. Verify that the HS codes on the commercial invoice match the product description, and confirm packaging details such as drum size for LPG or sealed cases for bullion before finalizing the order.

What HS codes does Preciousgems use for its petroleum products?

The petroleum entry is listed under HS 2709.00 for unrefined crude oil, jet fuel uses HS 2710.11, and LPG is classified under HS 2711.19.

Which purity levels are specified for the gold products?

Both gold bullion and raw gold are described as 99.99 % Au (24 karat) and are recorded under HS 7108.12.

What documentation should a buyer request for the cut diamonds?

Buyers should ask for a Kimberley Process Certificate and a gemological grading report that includes the 4Cs (carat, cut, color, clarity).

Are there standard certifications required for the LPG shipment?

LPG typically requires an MSDS, ISO 8217 compliance proof for the propane‑butane ratio, and any applicable REACH registration for the United Kingdom exporter.

What are the typical packaging formats for the metal bullion?

Gold and platinum bullion are usually packed in sealed, tamper‑evident cases, often in 25‑kg bricks for gold and 10‑kg bars for platinum, to meet security standards.

Which quality standards apply to the jet fuel offered by Preciousgems?

Jet fuel must meet ASTM D1655 specifications, including limits on flash point, sulfur content (<30 ppm) and density, and buyers often request a compliance certificate from an accredited testing house.

How can a buyer verify the crude oil grade?

A buyer should request an assay report indicating API gravity and sulfur content, along with an SGS inspection certificate that confirms the product matches the HS 1507.10 classification.