Diamond Price Guide Singapore 2025: How to Buy the Best Diamond for Your Budget
Purchasing a diamond in Singapore may be both thrilling and intimidating, particularly since costs vary significantly based on a number of important variables. The 4Cs—Cut, Carat, Color, and Clarity—as well as certification and whether the diamond is mined or lab-grown continue to influence Singapore’s diamond prices in 2025.
Brilliance is determined by cut, size is reflected by carat, appearance is influenced by color, and flaws are measured by clarity. Quality and authenticity are guaranteed by certified diamonds from respectable labs like GIA, IGI, or SGC. The diamond market in Singapore is fiercely competitive, with leading jewelers and internet retailers providing a large selection of stones for every price range. Knowing how diamond pricing functions will help you make an informed decision whether you’re purchasing an investment piece or an engagement ring.
Diamond Price Breakdown by Size
The carat size frequently becomes the primary factor influencing price while purchasing in any Singaporean diamond store. Bigger isn’t always better, though; a smaller diamond may appear more brilliant than a larger one with lower specs due to its superior cut and clarity. An overview of diamond prices in Singapore (2025 projections) based on round brilliant cuts with average color (G–H) and clarity (VS2–SI1) is shown below.
| Carat Weight | Mined Diamond Price (SGD) | Lab-Grown Diamond Price (SGD) | Description |
|---|---|---|---|
| 0.3 Carat | $800 – $1,200 | $400 – $700 | Ideal for minimalist designs or everyday wear. |
| 0.5 Carat | $1,800 – $2,800 | $800 – $1,200 | Popular choice for engagement rings with elegant presence. |
| 0.7 Carat | $3,000 – $4,200 | $1,300 – $1,800 | Offers excellent balance between size and budget. |
| 1.0 Carat | $6,000 – $9,000 | $2,000 – $3,000 | The classic engagement diamond — timeless and valuable. |
| 1.5 Carat | $10,000 – $14,000 | $3,500 – $5,000 | Perfect for a statement piece with noticeable sparkle. |
| 2.0 Carat | $18,000 – $25,000+ | $6,000 – $8,000 | A luxury purchase that symbolizes sophistication and success. |
Note: Prices may vary based on brand, craftsmanship, and certification. Designer settings or halo designs can further elevate overall costs.
How Cut, Colour & Clarity Affect Price
- Cut: The most crucial factor influencing brilliance. An Excellent cut can make a diamond appear 20–30% more radiant than a good cut.
- Colour: Diamonds are graded from D (colourless) to Z (tinted). G–H offers the best balance between beauty and value.
- Clarity: Refers to internal flaws (inclusions). VS1–VS2 provides great clarity without a premium price tag.
Mined vs Lab-Grown Diamonds in Singapore (2025)
With increasing sustainability awareness, lab-grown diamonds have become a significant trend in Singapore’s jewellery scene. These gems are physically and chemically identical to mined diamonds — but come at a fraction of the cost.
Comparison Table: Mined vs Lab-Grown Diamonds
| Feature | Mined Diamond | Lab-Grown Diamond |
|---|---|---|
| Origin | Formed naturally over billions of years deep within the earth. | Created in advanced laboratories using HPHT or CVD technology. |
| Price (per carat) | $6,000 – $9,000 (1ct, mid-range quality) | $2,000 – $3,000 (1ct, same quality) |
| Eco-Impact | Mining can disrupt ecosystems. | Eco-friendly and sustainable production. |
| Certification | Certified by GIA, HRD, or IGI. | Usually certified by IGI or GCAL. |
| Value Retention | Traditionally higher resale value. | Lower resale value but excellent affordability. |
| Visual Difference | None detectable to the naked eye. | Identical appearance and brilliance. |
Lab-grown diamonds have become increasingly popular among younger buyers who prioritize value, ethics, and innovation. Top diamond stores in Singapore, such as Michael Trio, now offer both mined and lab-grown options — ensuring transparency and variety for consumers.
How to Choose the Best Diamond for Your Budget
- Set Your Budget First: Determine how much you’re willing to spend and look for the best quality diamond within that range. Remember that minor compromises on colour or clarity can unlock better size or cut quality.
- Prioritize Cut Over Carat: A smaller diamond with an Excellent cut will outshine a larger one with a lower cut grade.
- Compare Certificates: Always ensure the diamond is certified by a trusted authority (GIA, IGI, HRD). This confirms its authenticity and value.
- Explore Lab-Grown Options: For the same budget, you can often buy a lab-grown diamond that’s 40–60% larger than a mined one.
- Shop Smart: Visit multiple diamond stores in Singapore to compare prices, craftsmanship, and after-sales support before making a decision.
Tips to Save Money Without Compromising Brilliance
Smart diamond shopping isn’t about finding the cheapest stone — it’s about maximizing value. Here are insider tips to stretch your budget while still getting a dazzling diamond:
- Choose “Near-Certainty” Grades
Opt for diamonds just below benchmark grades — for example, G instead of F colour, or VS2 instead of VVS1 clarity. To the naked eye, they look identical, but the savings can be significant.
- Go Slightly Under Popular Carat Weights
Prices jump sharply at milestone weights like 1.0 or 1.5 carats. A 0.9-carat diamond can cost up to 20% less but appear almost the same size once set in a ring.
- Prioritize Cut Over Carat
Always invest in an Excellent or Ideal cut, even if it means choosing a smaller diamond. A well-cut diamond reflects light better, creating more sparkle and visual size.
- Consider Lab-Grown Diamonds
With technological advances, lab-grown diamonds now match natural ones in brilliance and durability. You can often get a 1.5-carat lab-grown diamond for the price of a 1-carat mined diamond.
- Buy Online from Reputable Retailers
Physical stores often include 20–40% markups due to overhead costs. Buying from a trusted online jeweller like Michael Trio lets you access transparent pricing, certifications, and custom settings without extra charges.
- Customize Your Setting
A creative setting design can enhance the perceived size and brilliance of your diamond — halo or pavé styles, for instance, make smaller stones look larger and more luxurious.
Why Buying Directly from Michael Trio Helps You Avoid Markups
Michael Trio is one of Singapore’s most trusted direct diamond retailers, known for its transparent pricing, in-house craftsmanship, and GIA-certified diamonds. By removing traditional intermediaries and retail markups, they make luxury accessible without hidden costs.
Here’s how buying directly from Michael Trio benefits you:
- Factory-to-Consumer Model – Diamonds are sourced and crafted in-house, eliminating unnecessary retail layers.
- Custom Design Options – Choose from thousands of loose diamonds and settings to create your dream ring within your budget.
- Transparent Price Comparison – Each diamond listing includes certification, specifications, and high-resolution imagery for full transparency.
- Lifetime Services – Enjoy after-sales benefits like resizing, cleaning, and polishing — ensuring lasting brilliance.
Unlike high-end boutiques that inflate prices for branding, Michael Trio focuses on fair, honest pricing backed by international quality standards. This makes them a go-to destination for couples and collectors seeking both beauty and value in 2025.
Conclusion: Shop Smarter, Not Costlier — Discover Fair Diamond Prices at Michael Trio
In 2025, diamond buying in Singapore is about informed choice, transparency, and value. By understanding the key factors that shape diamond prices and applying smart shopping strategies, you can find the perfect stone that fits your taste and budget.
Whether you’re choosing a natural or lab-grown diamond, what truly matters is how wisely you buy. With Michael Trio’s direct pricing, certified quality, and expert guidance, you can confidently shop for your dream diamond without overpaying.
Shop smarter, not costlier — discover fair diamond prices at Michael Trio, where brilliance meets transparency.