បញ្ជាក់ដោយ GIA & IGI, GCAL 8x
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Buying Guides

How Diamonds Are Priced

What makes up the price you see, why it varies, how it holds over time, and how to read your ring builder total.

SAAT Gemology Team6 min read

Two components make up your total

Every purchase is really one or two prices combined: the diamond itself, and — if you're building a ring — the setting. Our ring builder shows both separately in your order summary before checkout, so you always know exactly what you're paying for each.

Why diamond prices vary so much

Two diamonds that look identical to the eye can carry very different price tags. The 4Cs explain most of the gap — cut quality, colour, clarity, and carat weight each move price independently, and none of them move it in a straight line. A 1.5ct diamond isn't 50% more than a 1ct of the same quality; it's often closer to double, because larger rough stones are rarer.

Certification also plays a role. GIA and IGI grade reports set an independent, verifiable standard for a stone's quality — the price follows the grading on the report, not a figure we set ourselves.

Natural vs lab-grown

Lab-grown diamonds are chemically, optically, and structurally identical to natural diamonds, but their supply is manufactured rather than mined. That difference in supply means lab-grown stones typically sell for significantly less than natural diamonds of the same specifications. Neither is "better" — the choice comes down to budget and personal preference, not quality.

Prices track a live market

Diamond prices move with the wholesale market — supply, demand, and mining output shift over time. Because we source live inventory rather than holding fixed retail stock, the price you see reflects current market conditions at the moment you're browsing. A diamond you save today may show a slightly different price if you return later — that's normal, not a pricing error.

Setting price

Ring settings are priced by metal type and design complexity. Platinum costs more than gold, and a pavé or halo setting with accent stones costs more than a simple solitaire — see our Metal Guide for how each metal compares.

Payment method matters

Paying by bank transfer earns a discount off your total order compared to paying by card. Your checkout total updates automatically when you select that payment method.

No hidden fees

The price shown at checkout is the price you pay — no undisclosed handling fees or last-minute additions.

Natural diamonds and long-term value

Well-graded natural diamonds (GIA or IGI certified, Excellent cut, G-H colour, VS1-VS2 clarity, 1ct or above) have historically retained value reasonably well. They are not investments in the financial sense — the retail-to-resale spread is typically 20–40% — but they do not depreciate to zero.

Larger, higher-quality stones (2ct+, D-F colour, VVS clarity) retain value best. Smaller, lower-grade stones have thin resale markets.

Lab-grown diamonds and value

Lab-grown diamond prices have fallen significantly as production scales. A lab-grown diamond purchased today may be worth considerably less in five to ten years as supply continues to grow.

If you view a diamond as jewellery rather than as a store of value, this is not a concern — the piece retains its beauty regardless of resale price. If long-term value retention matters, natural is the more conservative choice.

Buy-back and resale

SAAT's buy-back guarantee offers 50% of original purchase price within 3 years, for both natural and lab-grown diamonds — complete jewellery and loose stones from 1ct upward. This provides a meaningful floor if your circumstances change.

For private resale, certified diamonds (especially GIA-certified naturals) sell most easily. The certificate is the buyer's assurance — without it, resale is difficult.

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