Pt900/K18 1ct Lab-Grown Diamond 4-Prong Solitaire Ring
Made-to-order | Delivered in approximately 3 weeks to 1 month after your order and payment are confirmed.
Ring Engraving (Free)
You can engrave dates, initials, etc., up to 15 characters, including spaces.
Available characters are half-width alphanumeric characters, spaces, and symbols (& . + -).
Examples:
2026.09.15
K.M
H to K
If you would like an engraving, please enter it in the field below. You may leave it blank if not required.
Gift Options (Free)
The jewelry box will be tied with a ribbon, and a shopping bag will be included 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 and Dimensions
Product Code
JD250047R-LGD
Metal & Design
Metal: Pt900 or K18 Yellow Gold
Design: 4-prong solitaire
Stone
Lab-grown diamond: 1 stone
Carat weight: 1ct
Stone size: approx. 6.5mm
Shape: Round Brilliant Cut
Color: D color
Clarity: VVS2
Cut: 3EX (IDEAL, EX, EX)
Carat weights may have slight variations and include fractions.
Dimensions
Setting front: approx. 6.5mm
Setting height: approx. 6.3mm
Ring width: approx. 1.5mm
Ring thickness: approx. 1.7mm
Ring size: US 2.75 to US 8.25 (Japanese sizes 4 to 18)
Hallmark
Metal type and diamond carat engraved on the inside of the ring
Included Accessories & Gift
Jewelry box
IGI certificate
Certificate of quality and warranty
Regarding Metal Allergies
Metal allergies vary from person to person, and we cannot guarantee that this product will not cause a reaction in all individuals.
About Lab-Grown Diamonds
Shipping & Delivery Times
We offer free shipping on all orders within Japan, including Okinawa and remote islands.
For made-to-order items, please allow approximately 3 weeks to 1 month for delivery after your order and payment have been confirmed. Please check the product page for information regarding in-stock items and individual delivery times.
Once your order has shipped, we will provide a tracking number so you can monitor your delivery status.
Gift wrapping
We will deliver your order in simple packaging, with a ribbon tied around the jewelry box. A shopping bag for gifting will also be included.
You may also choose a message card. We can print a custom message on the back of the card.
Payment method
The following payment methods are available:
■ 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 receiving the product. Return shipping costs due to customer convenience will be borne by the customer.
■ Cancellations
If you wish to cancel, please contact us promptly. Please note that cancellations may not be accepted once production, sourcing, or processing has begun.
■ Initial Defects and Incorrect Deliveries
Please contact us within 8 days of receiving the product. We will respond after confirming the situation. Return and reshipment costs resulting from our error will be borne by us.
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 even after your purchase.
The feasibility and cost of repairs depend on the type and condition of the item. Please check below for details regarding warranty coverage, estimated repair costs, and the service request process.
About After-Sales Service and Repairs →
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