1ct 4-Prong Lab-Grown Diamond Solitaire Ring
Made-to-order | Approximately 3 weeks to 1 month after order and payment confirmation
Gift Options (Free)
We will tie a ribbon around the outer box of the jewelry box and include a shopping bag for gifting.
If you would like to have a message printed on the back, please select a card and enter your message in the field below. You may leave it blank if you do not require printing.
Product Specifications & Size
Product Specifications
- Product Number: JD250018R-LGD
- Metal
Platinum: Pt900
Gold: 18K Yellow Gold - Stone: Lab-Grown Diamond
Shape: Round Brilliant Cut
Carat Weight: 1ct
Stone Size: Approx. 6.5mm
Grade: D Color / VVS2 / 3EX (H&C) - Design: 4-Prong Solitaire
- Dimensions
Top Face: Approx. 6.5×6.5mm
Band Width: Approx. 2.2–2.3mm - Ring Size: US 3–8.25 (Japanese sizes 4–18, in 1-size increments)
Please contact us for other sizes. - Engraving: Metal Purity (Pt900/K18) and Carat Weight
- Included Items
IGI Grading Report
Jewelry Box
Certificate of Authenticity and Warranty
Product-Specific Notes
There may be slight variations in stone dimensions and carat weight. The listed dimensions are approximate.
Production and Delivery
This is a made-to-order item. It will be delivered in approximately 3 weeks to 1 month after your order and payment are confirmed. We will provide a specific estimated delivery date after confirming your order.
Due to the made-to-order nature of this item, we cannot accept cancellations after an order is placed or returns after delivery.
About Lab-Grown Diamonds
Delivery and Shipping Schedule
We offer free nationwide shipping within Japan, including Okinawa and remote islands.
For made-to-order items, the estimated delivery time is approximately 3 weeks to 1 month after your order and payment are confirmed. Please check the information for each specific product regarding stock items and individual delivery times.
Once your order has shipped, we will provide a tracking number so you can check the delivery status.
Gift wrapping
Your order will be delivered in simple gift wrapping, with a ribbon tied around the jewelry box. A shopping bag for gifting is also included.
You may also choose a message card. We can print a custom message on the back of the card.
Payment method
You can use the following payment methods.
■ Credit Card
Visa/Mastercard/American Express/JCB
■ Other Payment Methods
Shop Pay/Apple Pay/Google Pay
Please select from the methods displayed on the checkout screen when completing your purchase.
If you have any questions regarding payment, please contact us before placing your order.
Return and Refund Policy
■ Returns and Exchanges Due to Customer Convenience
We do not accept returns or exchanges due to customer convenience for made-to-order items, special order items, custom-made products, items that have undergone processing such as engraving or resizing, and earrings.
For eligible return items, please contact us within 8 days of receipt. Shipping costs for returns due to customer convenience are at the customer's expense.
■ Cancellations
If you wish to cancel your order, please contact us promptly. Please note that cancellations may not be accepted once production, procurement, or processing has begun.
■ Initial Defects or Incorrect Shipments
Please contact us within 8 days of receipt. We will handle the matter after confirming the situation. The costs for return shipping and re-shipment in cases where we are responsible will be covered by our shop.
For more details, please check our "Return and Refund Policy."
Repairs and After-Sales Service
To ensure you can enjoy your precious jewelry for years to come, we offer various repair and after-sales services after your purchase.
Whether a repair is possible and its cost depends on the type and condition of the product. Please check the details below for information on warranty coverage, estimated repair costs, and the service process.
After-sales Service and Repairs →
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