Engagement ring prices
What a RIVA engagement ring costs
Every price on this page is in US dollars and includes 7% VAT, for a ring in solid gold, made to order in Bangkok and shipped worldwide. No hidden extras: what each option adds is listed below.
Moissanite
Moissanite engagement ring prices
The same price for every shape: round, oval, emerald, radiant, princess, Asscher, pear, marquise, heart, baguette and trillion. Yellow, white and rose gold all cost the same.
| Solitaire | 9K | 14K | 18K |
|---|---|---|---|
| 1 carat | $870 | $1020 | $1230 |
| 2 carat | $1440 | $1660 | $1980 |
| 3 carat | $1820 | $2130 | $2620 |
| With accent stones | 9K | 14K | 18K |
|---|---|---|---|
| 1 carat | $1440 | $1590 | $1810 |
| 2 carat | $1920 | $2130 | $2450 |
| 3 carat | $2340 | $2620 | $3050 |
Ring sizes US 3 to 7 are included. US 7.5 to 9 adds $135, and US 9.5 and up adds $215, because larger rings use more gold. Accent stones are moissanite.
Lab grown diamond
1 carat lab grown diamond ring price
A real diamond, grown in a lab and certified by IGI. Set in solid 14K gold, in seven shapes.
- 1.00 carat centre stone, E/F colour, VVS2 clarity
- IGI certificate provided with your ring
- Round, oval, pear, emerald, radiant, Asscher or heart
- Yellow, white or rose gold, same price
- Free engraving inside the band
$1600
Plain band in 14K gold. Add a moissanite pavé band for $160, or a lab diamond pavé band for $370.
Larger lab diamonds and other settings are priced on request.
Couples ring set
Her engagement ring, her wedding band and his band
From $4070
Moissanite set in solid gold, with free engraving inside each band. Lab grown diamond sets are priced as you design.
Earrings
Interchangeable pearl and moissanite earrings
From $2350
One pair, three looks: hoops, pearl drops and moissanite drops. 1.00 or 2.00 carat, in 9K, 14K or 18K gold.
Before you order
What is included, and what is extra
Prices are correct in November 2026 and can change with the price of gold.
"Beautiful ring, great prices and the service was amazing!"
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Questions
Price questions
How much is a 1 carat moissanite engagement ring?
A 1 carat moissanite solitaire is $870 in 9K gold, $1020 in 14K gold and $1230 in 18K gold. With accent stones it starts at $1440.
How much is a 1 carat lab grown diamond ring?
$1600 in solid 14K gold, with an IGI certified 1.00 carat centre stone in E/F colour and VVS2 clarity.
Does the shape change the price?
No. Every moissanite shape costs the same, and so does every gold colour. Only the carat size, the gold purity and larger ring sizes change the price.
How much is shipping?
Delivery is free in Thailand, or you can collect from our Bangkok office. International delivery is a flat $80.
Can I pay in instalments?
Yes, with a Thai credit card from Bangkok Bank, Krungsri, KTC, SCB, ttb, UOB, CardX, The 1 or Lotus's, over 3, 4, 6 or 10 months. Cards from other countries pay in full.
Why are the prices lower than many jewellers?
Each piece is made to order in Bangkok, so there is no stock sitting in a shop and no showroom to pay for. You pay for the ring itself.