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GIA Certified Natural 5.51ct K SI1 Oval Diamond Loose or Solitaire Ring Set
$99,566
£74,346.05
€85,636.59
CA$138,939.86
A$146,895.25
CHF 78,937.46
MX$1,764,234.47
NOK 988,437.08
SEK 904,492.85
DKK 639,516.60
About the Item
**Save this diamond ❤️ to receive price updates**
*Offered loose; mounting into the pictured solitaire ring is available upon request.
Remarkably rare and crafted by nature, this GIA certified natural 5.51 carat oval diamond delivers pure brilliance with a beautifully balanced spread and presence. At 5.51 ct and an elegant 1.44 ratio (13.96 x 9.71 x 6.16 mm), the stone reads large on the hand and is a classic choice for an engagement or high-end collection. Color K gives a warm, sophisticated glow that pairs especially well in yellow or rose gold settings; clarity SI1 offers eye-clean appeal to most viewers while keeping exceptional diamond value and price per carat for a big diamond with real impact.
The oval cut is prized for its lively sparkle and flattering elongated silhouette, offering both modern appeal and timelessity. With Excellent polish and Excellent symmetry, and no fluorescence, this diamond offers consistent performance across lighting conditions, an enduring symbol of love and a statement piece for collectors and buyers searching for a loose diamond, natural diamonds, or GIA diamond of notable size.
This diamond is offered loose, and it can also be set into the solitaire setting shown in the photos upon request. When you inquire, please mention that you would like the diamond mounted in the ring, and we will add this option to your order.
Please note: The appearance of the diamond and ring may vary slightly from the photos due to lighting, photography, and the natural characteristics of both handcrafted jewelry and diamonds.
Diamond Details:
Certificate: GIA (Gemological Institute of America)
Type: Natural Diamond
Carat Weight: 5.51 ct
Shape: Oval
Color Grade: K
Clarity Grade: SI1
Fluorescence: None
Polish: EX
Symmetry: EX
Depth: 63.5%
Table: 62%
Ratio: 1.44
Measurements: 13.96 x 9.71 x 6.16 mm
DID: SLN218159
Location: New York
Keywords
Search Terms (included naturally above): loose diamond, 5 carat diamond, GIA diamond, natural diamonds, diamond carat, oval diamond, buy loose diamond, diamond quality, diamond cut, diamond price
- Creator:
- Ring Size:6 US, Resizable
- Metal:
- Stone:
- Stone Cut:
- Weight:5.51 ct
- Style:
- Lab Report Available:GIA
- Place of Origin:
- Period:
- Date of Manufacture:2026
- Condition:
- Seller Location:New York, NY
- Reference Number:Seller: DR-523268571stDibs: LU4373228358342
Resizing is available.
About the Seller
5.0
Gold Seller
Premium sellers maintaining a 4.3+ rating and 24-hour response times
Established in 1982
1stDibs seller since 2025
6 sales on 1stDibs
Typical response time: 6 hours
- ShippingRetrieving quote...Shipping from: New York, NY
- Return Policy
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