1 pcs 钻石 (天然) - 2.90 ct - 圆形 - J - VVS1 极轻微内含一级 - 国际宝石研究院（IGI） - 圆形明亮式切工

以下是对这颗钻石在质量参数、视觉效果、市场价值与镶嵌设置考虑的专业拆解：

Shape Round Brilliant Cut with 57 or 58 facets to maximize internal light reflection, brilliance, and fire.

Carat Weight 2.90 ct Measures approximately 9.15–9.30 mm in diameter. Just shy of the 3.00 ct threshold, offering substantial visual impact at a significant price-per-carat savings compared to a full 3.00 ct stone.

Color J Near-Colorless range. Round brilliants mask body color effectively due to high scintillation. A faint warm tint may be visible when viewed from the side, but it faces up predominantly white, especially when set in yellow/rose gold or paired with ideal proportions.

Clarity VVS1 Very, Very Slightly Included 1. Inclusions are microscopic pinpoints extremely difficult to detect even under 10× magnification. Completely eye-clean with exceptional internal purity.

Cut & Light Performance Ideal / Excellent Triple EX Precision table, crown, and pavilion angles ensure maximum brilliance (white light return), dispersion (fire), and scintillation (sparkle pattern).

Certification IGI Certified & Inscribed Authenticated by the International Gemological Institute with a laser inscription on the girdle matching the official grading report number for complete traceability.

Key Considerations for This Combination
Color & Metal Pairing: Because J color carries a touch of warmth, setting this diamond in 18K Yellow Gold or Rose Gold creates a warm background that makes the diamond appear whiter by contrast. If opting for Platinum or White Gold, ensure side stones (if any) are J or K color to avoid drawing attention to the warm tone.

Proportions for "Excellent" Light Performance: For optimal brilliance, confirm that the IGI report reflects target ranges near:

Table: 54% – 57%

Depth: 60% – 62.5%

Crown Angle: 34.0° – 35.0°

Pavilion Angle: 40.6° – 41.0°

Polish & Symmetry: Excellent / Excellent


Important Information for Buyers:
1. Customs and Import Fees:
○ Your country of residence may impose additional customs and import fees. These fees are the sole
responsibility of the buyer.
○ The VAT is not included in the price of the stone as it depends on your country’s laws.
○ How to pay VAT? You will pay the VAT directly to the courier company upon delivery.
2. Country-Specific Information:
○ France & Portugal: French and Portuguese customs will only clear imported loose diamonds (gemstones) if
they are handled by a local customs broker. The broker fee is not included in the price of the lot, and it will
need to be paid separately.
○ Belgium: To import loose diamonds into Belgium, you must have a license and be registered at the
Diamond Office.
2. Cancellation/Withdrawal by the Winning Bidder:
○ In case of a return, VAT, shipping fees, and customs fees will not be refunded. The buyer will be responsible
for all costs incurred during the return shipment.