JILL STUART
JILL STUART Illuminating Gem Serum Primer SPF40 (02 Diamond Gem)
JILL STUART Illuminating Gem Serum Primer SPF40 (02 Diamond Gem)
@cosme rating: 5.2/7.0
A serum makeup base that gives you highly transparent and incredibly lustrous skin.
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
It shines like a drop of jewel. A serum makeup base that gives you a highly transparent and overwhelmingly lustrous skin. A serum base that spreads freshly and gives you a highly transparent and overwhelmingly lustrous skin with a shine like a drop of jewel. With a high UV protection effect of SPF40. PA+++, it protects your skin firmly while achieving the soft and transparent skin that JILL STUART aims for with its base makeup, "Glow Chiffon". Contains carefully selected pearls, glow diamond powder, and aurora gem powder. It gives you a bright and lustrous skin finish. Contains powder that flattens pores and unevenness of the skin and naturally covers them. It spreads evenly and blends well with the skin, giving you a beautiful finish as if you were wearing a thin veil. It also contains a highly transparent clear powder that does not cast a white cast. Contains glow oil that combines moisturizing and radiance, and aurora gem powder that gives a jewel-like shine. The oil and powder create an overwhelmingly radiant finish, which is maintained by lasting ingredients. It is as soft as a veil, covering the skin with a makeup film that adheres tightly to the skin, protecting it from sweat, sebum, and creasing, while leaving a smooth film that lasts without any burden. Contains 88% beauty serum. Alcohol. ethyl alcohol. free, paraben free. Crystal floral bouquet scent. *Emulsion excluding powder.
Ingredients
How to use
<How to use>. Prepare your skin with lotion before use. Take an appropriate amount and spread evenly over your entire face. For best results, use in combination with other cosmetics that provide UV protection. . If the product gets on your clothes, avoid using chlorine bleach.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. Every item is bought from an official seller in Japan, or direct from the brand for pre-orders,
never from resellers or grey market stock. Counterfeits and grey market listings are a real problem in
Asian beauty online, and buying only through official channels is how we rule it out.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
It's quite metallic, so I wondered if it would affect my pores, but once I put foundation on, it didn't bother me. I'm not sure if it's the shine that gives it the effect, but I don't mind it crumbling. It doesn't spread very well, though.
If you're not sure what base makeup to use, this is it! This premium primer has a fresh texture that plumps up your skin, making your base makeup look dramatically more beautiful. It has an excellent balance of radiance and moisture, so you can use it with confidence even in dry seasons.
After watching a YouTube video, I decided to buy this instead of Cosme Decorte's Sun Shelter Tone Up CC. While Cosme Decorte's lavender is a dull color, this one has a beautiful blue-toned lavender that really brightens up the dullness. It also makes light blemishes almost invisible. Also, compared to Cosme Decorte, which had a weak pore-clearing effect, this one hides pores better. It's also great value for money; you can control the color with the primer, and this UV protection is all you need. It can't be used on the entire face, but that's not a problem since it's lavender-based and the areas exposed to the sun are the same as the other products, and the sun-exposed areas I want to tone up are the same, and the day cream also has UV protection, so it's not a concern. I plan to continue using this for a while.
It looks good when applied to the back of the hand, but maybe not so much when applied to the face...? However, I feel like my skin looks beautiful.
It gives a beautiful glow and fills in the unevenness of pores. Best of all, it's easy to spread and doesn't smudge easily, which is great. And the packaging is so cute, it's a primer that makes you feel excited just by having it. I use it in combination with Givenchy liquid foundation, and it works well together. I recommend it!