Four product lines,
one commitment
Ngọc Diệp Gold Shop carries four lines: diamonds, 23K–24K gold, Italian 750 gold and 610/680/710 gold. Each suits a different need. Here is how to tell them apart, the trade-in policy for each, and how to choose.
Diamonds
Light, chosen stone by stone
Natural diamonds are graded by the 4Cs: Carat (weight), Color, Clarity and Cut. Cut affects sparkle the most. At Ngọc Diệp, stones of 3.6 mm and above come with a 4C certificate (GIA or a Vietnamese laboratory) and are set in Italian 750 gold so the prongs hold firmly.
- Criteria
- 4Cs: Carat, Color, Clarity, Cut
- Papers
- 4C certificate from 3.6 mm
- Set in
- Italian 750 gold (18K)
- Best for
- Engagement and wedding rings, anniversary gifts, heirloom pieces.
- Warranty and trade-in
- Diamond settings carry a 1-month warranty. Sell-back at a 25% deduction, exchange at a 20% deduction, based on the invoice price.
23K–24K gold
Value that keeps
24K gold (9999 gold) is almost pure: deep yellow and soft; 23K (980) is about 98% gold. It is the choice for saving, wedding gold, bangles, bracelets and traditional gifts. Because it is soft, it scratches and dents if worn during heavy work.
- Purity
- 24K ≥ 99.9% · 23K ≈ 98%
- Character
- Deep colour, soft, highest gold value
- Trading
- At the daily market price
- Best for
- Saving, wedding gold, gifts, traditional bangles and bracelets.
- Warranty and trade-in
- Bought and sold at the market price at the time of the transaction.
Italian 750 gold
Refined for every day
Italian 750 is 18K gold, 75% pure gold, in yellow, rose and white. It is harder than 24K, keeps its shape and holds prongs well, so it is a favourite for rings, fine chains and gem-set jewellery. Many designs at Ngọc Diệp are imported from Italy and Hong Kong.
- Purity
- 750 = 18K = 75% gold
- Character
- Hard, several colours, fine designs
- Sourcing
- Imported from Italy, Hong Kong
- Best for
- Daily wear, wedding rings, diamond and gemstone jewellery.
- Warranty and trade-in
- Free warranty for small-stone setting and cleaning. Within 6 months: exchange −15%, sell-back −20%; after 6 months: exchange −25%, sell-back −30% (at market price, item intact).
Fashion gold
610 · 680 · 710
Fashion gold is gold alloyed with other metals for hardness. Common purities are 610 (about 14.6K), 680 (about 16.3K) and 710 (about 17K). The higher the number, the more gold, the deeper the colour and the higher the price. It is affordable, comes in many designs and suits daily wear.
- 610
- ≈ 14.6K · 61% gold
- 680
- ≈ 16.3K · 68% gold
- 710
- ≈ 17K · 71% gold
- Best for
- Fashion jewellery, gifts and daily wear on a moderate budget.
- Warranty and trade-in
- Free cleaning, polishing and small-stone setting. Like-for-like exchange when intact and current; broken or older designs lose 80,000 VND per chỉ. Bought back at market price.
Quick comparison of the four lines
| Line | Gold content | Hardness | Best for |
|---|---|---|---|
| 24K gold | ≥ 99.9% | Soft | Saving, wedding gold |
| 23K gold | ≈ 98% | Soft | Bangles, bracelets, gifts |
| Italian 750 | 75% | Hard | Rings, gem-set jewellery |
| 710 gold | ≈ 71% | Hard | Daily wear |
| 680 gold | ≈ 68% | Hard | Daily wear |
| 610 gold | ≈ 61% | Hardest | Fashion, gifts |
Questions about our products
What kinds of gold does Ngọc Diệp Gold Shop sell?
Ngọc Diệp sells 23K–24K gold, Italian 750 (18K, in yellow, rose and white), 610, 680 and 710 gold, and diamond jewellery.
Which gold is best for saving?
24K gold keeps the highest gold content, so it suits saving; 750 and fashion gold include workmanship, so more is usually deducted when you sell them back.
What gold should wedding rings be made of?
Most couples choose Italian 750 because it is hard, keeps its shape and holds stones securely; traditional couples may prefer plain 24K bands.
Do Ngọc Diệp diamonds come with certificates?
Yes. Diamonds of 3.6 mm and above come with a 4C certificate (GIA or a Vietnamese laboratory).
Can I order a custom design?
Yes. The shop offers 3D design and crafting from your idea or sketch, with advice on stones and purity.