You want to propose with a surprise, but you don't know your girlfriend's ring size! Every method you find online seems likely to give it away. For guys facing this dilemma, we recommend the "Propose with a Diamond" plan — a hugely popular service that solves exactly this problem.

◇Propose with a Diamond◇

Propose with a diamond

When it comes to proposing, it's common to propose with an engagement ring already made — but "Propose with a Diamond" is different. You purchase just the diamond first, present it in a special case, and propose with that alone! Afterward, you and your girlfriend can choose the ring design together, and take her exact size at that time. This way, you can match the ring to her tastes, guaranteeing her delight! It's perfect for anyone who wants their partner to experience the true brilliance of a diamond first.

◇How Long Does It Take to Make an Engagement Ring?◇

Engagement ring production timeline

Buying an engagement ring at a jewelry shop and proposing that same day really only happens on TV. In reality, most jewelry shops use a method called "semi-order," where the ring is crafted from scratch, and this typically takes about a month and a half to two months.

◇What Is Semi-Order?◇

What is semi-order jewelry making

"Semi-order" comes from the Latin root "semi," meaning "half." It refers to selecting from predetermined options to create something as close as possible to exactly what you want. For engagement rings, this means choosing the design and diamond separately, then having them crafted together.

【SHOP LIST】

For a dramatic proposal scene, the classic style of opening a jewelry case to present the ring is still the way to go. Keeping your proposal words simple and clear is ideal — and this might be the perfect moment to finally say the things you've never dared to say before.

We offer carefully selected proposal diamonds to match any size and budget at the following stores. Make your proposal uniquely yours, with a diamond...

▷See the Propose with a Diamond Special Feature

▷See the List of Propose with a Diamond Retailers

《JKPLANET Ginza Main Store》 

Ginza GS Building II 1F, 8-11-1 Ginza, Chuo-ku, Tokyo

《JKPLANET Omotesando Store》

KADOSAKA Building 1F, 1-8-16 Jingumae, Shibuya-ku, Tokyo

《ETERNAL FIRST DIAMOND Hamamatsu Store》

503 Kajimachi, Naka-ku, Hamamatsu-shi, Shizuoka

《ETERNAL Shizuoka》

2-7-16 Gofukucho, Aoi-ku, Shizuoka-shi, Shizuoka

《LUCIR-K BRIDAL Hamamatsu Store》

ZAZA Kouji, outside 1F West Building, ZAZA City Hamamatsu, 15-1 Kajimachi, Naka-ku, Hamamatsu-shi, Shizuoka

《LUCIR-K Main Store》

1-8 Konyamachi, Aoi-ku, Shizuoka-shi, Shizuoka

《TIARA》

2-5-13 Gofukucho, Aoi-ku, Shizuoka-shi, Shizuoka

《JKPLANET Fukuoka Tenjin Store》

Towa Coop Societe Daimyo 1F, 1-1-35 Daimyo, Chuo-ku, Fukuoka-shi, Fukuoka

《JKPLANET Kumamoto Kamitori Store》

Tera Building 1F, 7-4 Kamitoricho, Chuo-ku, Kumamoto-shi, Kumamoto

《JKPLANET Miyazaki Tachibana-dori Store》

Bricks MB Building 1F, 3-4-3 Tachibanadorihigashi, Miyazaki-shi, Miyazaki

《JKPLANET Kagoshima Tenmonkan Store》

JK Sepia Building 1F, 7-2 Higashisengokucho, Kagoshima-shi, Kagoshima

《BRIDAL SHOP MUQBEL》 

51-3 Mihama, Chatan-cho, Nakagami-gun, Okinawa