• Gemstones size to Carat Weight Calculator(Automatic online calculator)
• Gemstones size to Carat Weight Formula

Certificates:
We offer a secured environment regarding the nature of the gemstones, treatments detection and diamonds grading. Single precious stones generally come with certificates (A.I.G.S Thailand for medium range stones, and G.R.S Swiss Lab for origin certificates on valuable stones).
Cost for GIA Certificate: 120 USD

Sizes/Qualities:
We mostly use eye clean quality but we can accept requirements for loupe clean gemstones, or lower grades if required for silver jewelry.

MICRO PAVE:

From 0.6 mm to 0.8 mm :

• We propose only VS or VVS quality white diamonds.

From 0.8 mm down to 0.9 mm :

• VS or VVS quality white diamonds
• CZ (white only).

From 1.0 mm to 1.4 mm we have :

• Diamonds (white, black, Champaign, brown, cognac)
• Treated colored Diamonds (green, yellow, purplish-pink, blue),
• Ruby,
• Sapphire (blue, green, yellow, orange, pink, white, black),
• Tsavorite (green garnets),
• White Topaz,
• CZ.(all colors)

LARGE PAVE:

From Round1.5 mm OR princess 2x2mm AND up to 4 mm:

• Diamonds (white, black, Champaign, brown, cognac),
• Treated colored Diamonds (green, yellow, purplish-pink, blue),
• Ruby,
• Sapphire (blue, green, yellow, orange, pink, white, black),
• Tsavorite (green garnets),
• Tourmalines (pink, orangey-pink, green mostly),
• Tanzanite,
• Topaz (Swiss blue, London blue, sky blue),
• Rhodolite Garnets (purple),
• Mozambique Garnet (Orangey Red),
• Peridot,
• Diopside (deep green),
• Amethyst,
• Citrine,
• Smokey Quartz.
• CZ.(all colors)

STANDARD CALIBRATED SIZES:

From 4x2mm and up to 12mmx10mm in round or other shapes:

• Tourmalines (pink, orangey-pink, green mostly),
• Aquamarine, Blue Beryl ((try not too small for color saturation),
• Heliodore (Yellow Beryl)
• Tanzanite,
• Topaz (Swiss blue, London blue, sky blue),
• Rhodolite Garnets (purple),
• Mozambique Garnet (Orangey Red),
• Peridot,
• Amethyst,
• Citrine,
• Smokey Quartz.
• CZ.(all colors)

CUT-TO-FIT, CUT-TO-ORDER (large or unusual sizes)

For Fancy shapes, fancy faceting, and large stones for a given variety:

• Tourmaline Pink, light Grades, small sizes.,
• Tourmaline Rubelite (Red slightly included, no eye clean in larger sizes),
• Aquamarine greenish-blue (milky),
• Aquamarine Blue (transparent, slightly included for series),
• Morganite (treated orangey-pink for series),
• Topaz (Swiss blue, London blue, sky blue),
• Amethyst,
• Rose-de-France (purplish, very light amethyst),
• Green Amethyst,
• Citrine,
• Lemon Quartz
• Smoky Quartz,
• Rose Quartz (milky or less milky),
• Chalcedony (milky blue, lavender),
• Chrysoprase or phrenite (milky green).

CUT-TO-FIT / INLAYS:

We can do carvings or cut inlays out of any stone, but generally we use opaque ornamental stones:

• Mother of pearl,
• Lapis,
• Turquoise,
• Labradorite,
• Jaspers,
• wood.

Pricing:
The most important concept about small stones (diamonds and colored stones) is the handling, selection and sorting for sizes and quality to fit the jewelry requirement. These tasks are creating labor costs, stock and rejections and it represents a liability as well. Therefore small diamonds selected and sorted cannot be compared in prices with wholesale prices for lots of average sizes and qualities. The difference with lot-price would be around 15% to 20% after sorting (markup for workshop excluded, this is our costs.).

Consignment:
The task and the liability are the same whether the stones are supplied by the customer or by a supplier. Therefore we apply the same charges of 15% to 20% on small goods provided by customers. Larger and costly stones will have the consignment fee down to 10% or 5% depending on the value. We base the value on our own estimates for similar goods if we were to provide them ourselves.
The gain for the customer is still important when providing his own stones because the margin of the workshop does not applying on the value of the materials (saving 15% to 25%) and if the customer could buy at better price than we would he can save even more..

* Imported goods to Thailand are subject to 7% VAT and 5% to 20% import tax based on the declared value depending on matérials, but matérials specific to jewelry can have their import tax waived totally or limited to 3%-5%. We will provide the custom duty documents to the customer and collect the payment before clearing customs duties to receive the goods. For small amount we might pay for custom duty and collect money later.

Reminder:
Our quotations are based on real labor and material costs, then we apply a margin of:
- Gold Jewelry : +20% based on our costs (which is 15% profit based on selling price to customer).
- Silver Jewelry : +33% based on our costs (which is 25% profit based on selling price to customer).

When buying large quantities the customer can accumulate up to -10% discount