Hong Kong and Macau appraisal | Coins, banknotes, stamps, porcelain and gold
Send photos on WhatsApp for a free first review. We assess old coins, banknotes, stamps, gold and porcelain, then arrange in-person appraisal where needed.
Quick appraisal by collectible type
Each collectible type has different photo angles and value factors. Use the prompts below to prepare clear photos so we can assess variety, condition and whether an in-person appraisal is worthwhile.
Dragon silver dollars
Province, year, variety, dragon design, edge, weight and patina
Straight front and back photos, close-up edge photos and weight photos. Avoid flash glare.
Cleaning, edge damage, holes or damaged patina can directly reduce value.
Republic silver dollars
Year, signature variety, shoulder details, patina, strike and circulation marks
Portrait, reverse design, edge and any detail markers should each be photographed.
Counterfeits, repaired edges, artificial patina and heavy polishing need physical confirmation.
Old banknotes
Variety, serial number, grade, consecutive numbers, rarity, folds and repair traces
Lay flat for front and back photos, then add corners, serial numbers, stains and damage.
Tape repairs, stains, missing corners, trimming and folds can create large price differences.
Stamps and albums
Theme, perforations, gum, set completeness, album condition and recent market references
Album cover, page overview, important stamps close-up and back gum condition.
Mold, yellowing, missing perforations and moisture-damaged gum can reduce buyback value.
Antique porcelain
Body, glaze, shape, mark, age, repair traces and provenance
Overall view, base mark, mouth rim, foot rim, glaze details and damage areas.
Later matching, cracks, overpainting, ground foot rims or unclear provenance need in-person review.
Foreign silver coins
Year, variety, silver content, preservation, strike and market references
Front, back, edge, weight and diameter. Include box or certificate photos if available.
Wear, cleaning, artificial patina or incorrect weight need further checking.
How Gu Jin Jian Bao appraises
Items with the same name can differ sharply by variety and condition. Send photos first so we can review the direction, then arrange an in-person appraisal where needed.
4-step appraisal process
Photograph the front, back, edge, details, packaging and certificates, then send them by WhatsApp or WeChat.
We first review category, variety, condition and approximate market level, then tell you which angles to add.
For valuable or uncertain items, we can arrange viewing in Hong Kong or Macau.
Seller FAQ
No. Natural patina is an important clue for authenticity and condition. Wiping, polishing or chemical cleaning can reduce value.
We can give an initial direction, but the final buyback value still depends on physical weight, edge, sound, surface, repair traces and overall condition.
Photo review is free. If the item appears suitable, we can discuss an in-person appraisal and handover arrangement in Hong Kong or Macau.
We explain the key factors, including variety, rarity, condition, material, recent comparable transactions and physical risk.
Clear before any handover
Antiques and old coins are easy to misjudge when information is uneven. We review photos first, confirm physical details when needed, and explain what should be preserved as-is.
Start with photos. There is no pressure to sell.
Silver coin patina, original banknote condition and porcelain glaze are appraisal clues. Cleaning, polishing, tape repair or amateur restoration can reduce value.
We review variety, authenticity risk, condition, recent transactions and market demand instead of using vague high-price language.
For valuable or uncertain items, viewing can be arranged in Hong Kong or Macau. Cash or transfer settlement is completed after both sides confirm the sale.
Front, back, edge and weight, preferably photographed in natural light.
Full front and back photos, plus serial numbers, corners, reverse side, stains and damage.
Overall view, base mark, rim, foot, pattern details, cracks and repair traces.
Cases and knowledge
Buyback cases, authenticity notes and market observations help sellers understand how variety, condition and preservation affect value before sending photos.
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Coin buyback knowledge
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WhatsApp free photo appraisal
