Natural Diamond Prices – June 2025

LAST UPDATE ON: June 10th, 2025

PriceScope delivers monthly insights into the natural diamond market for consumers, traders, and industry professionals. This June report examines the market’s latest trends, including price movements across premium, mid-range, and lower-grade diamonds, impacts of evolving U.S.–India tariff policies, and emerging shape preferences. It integrates benchmarks from leading sources like Rapaport and IDEX and highlights competitive pressures from lab‑grown diamonds.

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Round Diamond Price Chart

ROUND Natural Diamond Price Changes For The Last 3 months
Diamond Carat Sizes	4/1/2025	5/1/2025	6/1/2025
0.0 – 0.5	1 % ↑	3 % ↑	0 %
0.5 – 1.0	0 %	5 % ↑	-2 % ↓
1.0 – 2.0	1 % ↑	3 % ↑	-1 % ↓
2.0 – 3.0	0 %	2 % ↑	0 %
3.0 – 4.0	0 %	2 % ↑	-1 % ↓
4.0 – 99	-1 % ↓	2 % ↑	-1 % ↓

The delayed and contested U.S. tariffs, initially applied April 5, then adjusted through appeals, continue to hamper trade flow and add unpredictability. Major diamond centers (Belgium, India, Israel) remain on high alert, adjusting export volumes and inventory levels in response to shifting tariff timelines.

Average Price Per Carat For a Round Diamond

Click any cell in the table to see 12 different size categories and 12 different shape prices searchable by color and clarity.

The natural diamond market in May 2025 showcased diverse pricing trends across clarity and color categories, shaped by evolving consumer preferences and intensified competition from lab-grown diamonds. This month’s insights highlight a dynamic environment, presenting both opportunities and challenges across premium, mid-range, and budget-friendly diamond grades.

Premium Grades

Premium diamonds experienced mixed price movements in June. D/FL clarity diamonds dipped slightly from $13,218 in May to $12,586, while D/IF clarity strengthened to $13,224 from $12,964, reflecting selective demand for internally flawless stones. E/FL clarity remained unchanged at $10,786, suggesting market stabilization. Meanwhile, F/VVS1 diamonds advanced to $8,611 from $8,539, hinting at a gradual uptick in consumer confidence in premium categories.

Mid-Range Grades

The mid-range segment continued to see steady interest with slight variations. H/VS1 clarity diamonds rose to $4,759 from $4,755, maintaining their attractiveness among buyers seeking quality within budget. However, F/VVS2 diamonds slipped slightly to $7,560 from $7,349, indicating nuanced shifts in preferences within this category.

Lower Grades

Lower-grade diamonds faced mixed pressures. J/SI1 diamonds decreased slightly to $2,550 from $2,570, while K/SI2 diamonds decreased slightly to $1,834 from $1,897. I/SI1 diamonds saw a marginal rise to $3,349 from $3,251, underscoring ongoing challenges within this segment but some signs of resilience as price pressures ease.

Market Implications

June’s trends reveal a slight drop in the top-end D/FL category and resilience in D/IF diamonds, with mid-range diamonds holding firm. Lower-grade diamonds continue to grapple with price pressures but show tentative signs of recovery. Retailers and wholesalers can capitalize on these patterns by adapting marketing strategies and inventory mixes to meet shifting consumer needs, particularly with lab-grown competition intensifying in lower and mid-range categories.

Popular Diamond Shapes

In our latest analysis of the Top 5 Popular Natural Diamond Shapes from May to June 2025, the natural diamond market revealed evolving consumer preferences, reflecting both stability in classic shapes and shifts within alternative cuts.

Round diamonds further solidified their dominance, rising from 62.44% in May to 67.87% in June (+5.43%), highlighting their continued appeal for timeless, versatile engagement ring designs. Despite this gain, Oval diamonds declined from 10.91% to 8.88% (-2.03%), signaling a slight softening in demand for elongated, modern shapes.

Emerald diamonds experienced a modest rise, increasing from 6.08% to 6.79% (+0.71%), reflecting sustained interest in elegant, clean lines. Cushion diamonds also rebounded slightly, moving from 4.92% to 5.87% (+0.95%), suggesting a renewed appreciation for softly rounded, classic designs.

Pear-shaped diamonds, however, saw a notable drop from 6.45% to 3.14% (-3.31%), indicating a declining demand for this distinctive teardrop shape in the current market landscape.

Market Implications

June 2025 trends highlight the enduring popularity of Round diamonds and a stabilizing interest in Emerald and Cushion shapes. The decline in Pear-shaped and Oval diamonds suggests a nuanced shift in consumer tastes, with some favoring traditional cuts over bold, modern shapes. Retailers can use these insights to improve inventory strategies and better align marketing efforts with evolving consumer preferences.

PRO TIP: When shopping for loose natural diamonds, it’s important to consider factors like cut quality and vendor services, such as upgrade options and return policies, which can significantly influence the price.

Bottom Line

As June 2025 unfolds, the natural diamond market reflects a clear preference for round cuts and internal clarity in premium tiers, with mid and lower segments navigating headwinds from softened demand and lab-grown alternatives. A volatile tariff backdrop adds to the complexity. Vendors should adopt agile pricing models, shape-centric inventory strategies, and leverage consumer-oriented policies to retain market relevance and growth.

PriceScope provides monthly updates and detailed insights through our Diamond Price Chart pages, covering both natural and lab-grown diamond pricing to help you navigate the evolving diamond industry effectively.