Did You Miss the Jewels of the Weeks for August 2024?
August is closing out and September is sliding into place! It’s been a lovely month for jewelry! We love getting to see all the new jewelry pieces posted by PriceScope…
Price analysis was based on the statistics and prices of more than 50,000 unique diamond listings available via the Internet during the first week of July, 2004.
3.7.1. Market price adjustment
AGSL graded diamonds with Ideal Polish and Symmetry are often priced about 8% – 10% higher than similar GIA-GTL graded diamonds with Excellent/Excellent symmetry and polish. However this differential fluctuates over time and carat weight ranges; a week later than this survey’s analysis period, equivalent GIA-GTL and AGSL listed diamonds in the 0.6-0.69 carat range averaged out at the same price. The relatively small numbers of these stones, and the niche nature of this business, means the various margins of a small number of vendors can have a large effect on the average price results.
A number of the diamonds in this survey were not graded as AGS 0 by AGS; these diamonds trade at a lower premium to GIA stones. This has been taken into account in the pricing of these stones.
EGL graded diamonds are currently offered within the trade at 9% – 15% lower than the same grade GIA-GTL stones. Our statistics[1] show little (within ±3%) difference in prices for diamonds graded by EGL USA and EGL overseas, although anecdotal evidence suggests a larger differential.
Table 2. An example (using stone # 3) of the method used to calculate the market price comparisons in Table 3.
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E.g. stone # 3 | GIA | EGL |
Carat | 1.08 | 1.08 |
Color | H | G |
Clarity | SI2 | SI2 |
Number of stones in database | 85 | 54 |
Avg. Price | $4,248 | $3,634 |
Price difference | -14% | |
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