2026年 April

10 Best loupes in 日本

Last Updated - 02/04/2026

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Best Choice
01

Nikon

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Nikon Gem Appraisal Loupe 10X NEW (Made in Japan)
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Resolution of 63 lines/mm
Metallic through holes
Distortion aberration correction
Airtight

￥6,480
02

GranCraft(グランクラフト)

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【Collaboratively Developed with Professional Appraisers】 Magnifying Glass, Magnifier GranCraft 【Awaited "One Size Larger" 20.5mm Lens】 Observation, Appraisal, Inspection, 10x, Gems, Minerals, Jewelry
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【Highly evaluated by corporate customers】We have received orders from many precious metal recycling stores, recycling shops, factories, research institutions, and various companies
✅【Reduced loosening rivet structure】The central fastener is a rivet fastening structure Reduces the stress of screws loosening
✅【Main Specifications】Magnification: 10x, Body weight: 49g, Lens diameter: 20.5mm, Size: 25mm x 37mm x 26mm (Opened, maximum 60mm)
✅【Joint development with an active professional appraiser】Supervised with 20 years of appraisal experience and insight Based on the concept of "a magnifying glass that can be used even at the field level", we jointly developed a magnifying glass that even professionals can be satisfied with (It is also used in real purchase sites, recycling shops, etc
✅【Includes a user manual with expert explanation】With an explanation by professional appraiser Akihiro Mizutani, it comes with an easy-to-understand manual with photos Please read before use ※There is a trick to holding it Just like with a magnifying glass, if you look at the lens away from your eyes, the image will be inverted. Always make sure to bring the body close to your eyes to look at the lens
✅【Ideal "10x" magnification for appraisal and inspection】 Adopts a "10x" magnification lens, the most commonly used magnification in professional settings With a high-quality "A9 grade" lens, it focuses sharply on the target object
✅【For when the observation range is wide】It can be used for many purposes such as inspection work, observing plants, checking for damage on models, fibers, and trading cards
✅【3-Layer Structure "Triplet Lens"】 Features a triplet lens made by bonding three convex-concave lenses together Compared to a single ordinary glass lens magnifier, it offers a clearer view
Matte Black Coating for Improved Appraisal Accuracy: A matte black body coating is used to prevent glare and unnecessary reflections from the outer frame of the lens Fingerprints are less noticeable, and the handle looks elegant (Because of the coating, there is no "burrs" found in other magnifying glasses)
In response to the demand for a slightly larger size loupe, GranCraft introduces the highly anticipated one size larger loupe from their "3 Crown Loupe" series! When observing or inspecting objects that are larger than the lens diameter, we recommend this larger size

￥3,180
Best Value
03

TENGA
28% Off

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TENGA Healthcare (Tenga Healthcare) TENGA MEN'S LOUPE Tenga Men's Loupe [Sperm Observation Kit for Smartphones]
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Product Size (W x D x H): 4.4 x 0.8 x 50.0 inches (113 x 21 x 127 mm)
Contents: 1

￥1,182 ￥1,650 28% Off
04

TENGA
28% Off

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TENGA Healthcare (Tenga Healthcare) TENGA MEN'S LOUPE Tenga Men's Loupe [Sperm Observation Kit for Smartphones]
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Product Size (W x D x H): 4.4 x 0.8 x 50.0 inches (113 x 21 x 127 mm)
Contents: 1

￥1,182 ￥1,650 28% Off
05

GAIN EXPRESS

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Gain Express Gem Loupe Magnifier, Lighted Jewelry Loop Magnifier Hastings Triplet Magnifier 10x for Coins, Jewels, Stamps, Diamonds and More (With White LED and UV Light)
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

✅Premium quality construction: Made with a full metal body for durability and long life The magnifying glass is designed to easily illuminate the LED light via a slide switch, and the UV light can be operated independently
✅ Versatile lighting options: Equipped with both LED light and UV light (long wave) The LED light provides natural white illumination for inspecting inclusions and details, and the UV light is perfect for checking the fluorescence of diamonds
✅ Portable and convenient: The compact folding design makes it easy to carry and store The magnifying glass comes with a synthetic leather storage case, 3 button cell batteries, and a screw latch key
✅ Optimal Observation Experience: The color-canceling and achromatic optical glass magnifier corrects spherical aberration and chromatic aberration, ensuring sharp focus and color accuracy across the entire field of view
✅ Enhanced Observation: With 10x magnification, 21 mm triplet lens, and 6 bright white LED lights, it illuminates the field of view, providing excellent clarity for inspecting diamonds, gemstones, and more

￥2,999
06

GranCraft(グランクラフト)

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【Jointly Developed with Professional Appraisers】 Magnifying Glass GranCraft for Appraisal and Observation, 10x, Jewelry Loupe for Gems and Minerals 【Optimal Appraisal Magnification x 3-Layer Structure
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【The correct way to choose a magnifying glass】The common misconception that "higher magnification is easier to see" is often incorrect High magnification lenses over 20x can make it difficult to focus as the "field of view becomes narrow and hard to adjust," making it challenging even for professionals to handle In addition, the LED light magnifying glass makes it difficult to see objects due to the reflection of light, and the weight of the battery makes it heavier From an expert appraiser's perspective, we recommend "10x"
【Reduced loosening with rivet structure】The central fastener is a rivet fastening structure Reduces the stress of screws loosening
【Main Specifications】Magnification: 10x; Body weight: 49g; Lens diameter: 20.5mm; Size: 25mm x 37mm x 26mm (up to 60mm when open)
【Includes an expert's instruction manual】Comes with an easy-to-understand manual with explanations by professional appraiser: Akihiro Mizutani.' Please read before use ※There is a trick to holding it Just like with a magnifying glass, if you look at the lens away from your eyes, the image will be inverted. Always make sure to bring the body close to your eyes to look at the lens
【Ideal "10x" magnification for appraisal and inspection】 Adopts a "10x" magnification lens, the most commonly used magnification in professional settings With a high-quality "A9 Grade" lens, it focuses sharply on the target object
【Highly evaluated by corporate customers】We have received orders from many precious metal buyers, recycling shops, factories, research institutions, and various companies
【Collaborative development with an active professional appraiser】Supervised with 20 years of appraisal experience and insights Jointly developed a loupe that professionals can be satisfied with, with the concept of "a loupe that can be used even at the site level" (It is also used in real purchase sites, recycling shops, etc
【3-Layer Structure "Triplet Lens"】 Features a triplet lens composed of three convex-concave lenses bonded together Compared to a single ordinary glass lens magnifier, it offers a clearer view
Matte Black Coating for Improved Appraisal Accuracy: A matte black body coating is used to prevent glare and unnecessary reflections from the outer frame of the lens Fingerprints are less noticeable, and the handle looks elegant (Because of the coating, there is no "burrs" found in other magnifying glasses)
(Even for a Wide Range of Observation) Can be used for many purposes such as inspection work, observing plants, checking models and fibers, and checking scratches on trading cards

￥2,880
07

ミザールテック
33% Off

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ミザールテック MIZAR-TEC 手持ちルーペ倍率2.5倍レンズ径90mm 高倍率タイプ日本製 RL-90
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Weight: 5.6 oz (160 g)
Size: Height 8.3 x Width 3.5 x Thickness 0.5 inches (210 x 90
Material: Brass, ABS resin, optical lens
Magnification: 2.5x
Lens diameter: 3.5 inches (90 mm)

￥1,700 ￥2,530 33% Off
08

Kenko

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Kenko ルーペデスクルーペ 4倍 DK-50
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Size: 48mm
Product Model Number: 140010
Packing Size: 12 x 9.6 x 3.9 cm; 3.79 g
Color: Black

￥982
09

PhoenixLoupe

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Phoenix Eyeglass Magnifier [10x & 15x & 20x & 25x] 4 types of lenses/Hands-free/LED light 2/Headband included Magnifying glass Loupe Black
8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

✅【Warranty】Manufacturer warranty certificate included (45 days) * If there is any defect or malfunction with the product, please contact us by email We will promptly refund you or resend a new item ◆Note: The optical center distance of this product is 2mm Please note that if the optical center distance (※1) is longer than the pupil distance (※2), it may require excessive inward eye movement before use, which can strain the eyes and lead to eye fatigue or double vision ※1... Distance between the optical centers (point where the light axis passes) of the left and right lenses. ※2... Distance between the centers of the left and right pupils. To see the object enlarged to the indicated magnification, you need to wear this product and adjust the distance between your eyes and the object to about 2 cm Please note, this product is designed for magnifying objects that are within reach Please note that this is not intended for walking while worn like glasses or for viewing distant objects
✅【Usage】Since it is a monocular design 【※Cannot be used with both eyes simultaneously】, there are various ways to use it You can move the lens part up and down, so it is recommended to use the other eye when tired 【※The lens can be removed by rotating it】The detachable eyeglass foot can also be used by replacing it with an adjustable headband Hands-free magnifying glass, so both hands are free for easy fine work With magnification similar to a microscope, it can be switched between 4 different magnifications
✅【Usage Examples】Checking for inclusions (internal features) in jewelry, checking engravings, minerals, fountain pen tips, fine details in embroidery, coins, fibers, stones in accessories, natural stones, insects, fluorescence in diamonds, distinguishing jade, checking paramecium (etc.) for feeding kilifish, water moss, record needles, stones picked up at the sea, children's science projects, archaeological investigations, checking for product burrs, electronic component engravings, etc
✅【Size】Width: 5.7 inches, Height: 2.4 inches, Depth: 8.1 inches, Product weight: 2.0 oz (including battery), Color: Black 【Includes】Replaceable headband, Test button cell (LR1130) x 3, 45-day warranty certificate
✅【Scene】Want to work while looking at small items, the usual loupe makes it hard to see because your hand casts a shadow, want to use both hands while using a loupe! For those occasions Glasses-type magnifier!! Free from the hassle of holding a magnifying glass, you can use both hands freely, making detailed work easy Lightweight and with less pressure on the eyes, making it easy to work for long periods Equipped with two high-brightness LED lights, it can be used even in dark places!
✅【4 types of magnification】Switchable to 10x, 15x, 20x, 25x, allowing for more precise and clearer work Suitable for various scenes from practical use to professional settings with magnification tailored to the purpose Recommended for observation, research, correction, proofreading, authentication, substrate, and other applications such as checking printed materials and publications, dot pattern checks, electronic circuit boards, textiles, surface defects of optical parts, jewelry collar authentication, and biological specimen observation

￥1,948
10

レイメイ藤井
26% Off

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Reimei Fujii Ultra Observation Loupe Teacher EW401 Glass
8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

W 2.2 inches (5.5 cm) × H 5.2 inches (13.2 cm) × D 0.3 inches (0.8 cm)
Polyacrylic
Body: PP; Lens: Glass
Acrylic resin strap: ABS
Accessories: Name sticker, safety neck strap

￥446 26% Off

10 Best loupes in 日本

Nikon Gem Appraisal Loupe 10X NEW (Made in Japan)

【Collaboratively Developed with Professional Appraisers】 Magnifying Glass, Magnifier GranCraft 【Awaited "One Size Larger" 20.5mm Lens】 Observation, Appraisal, Inspection, 10x, Gems, Minerals, Jewelry

TENGA Healthcare (Tenga Healthcare) TENGA MEN'S LOUPE Tenga Men's Loupe [Sperm Observation Kit for Smartphones]

TENGA Healthcare (Tenga Healthcare) TENGA MEN'S LOUPE Tenga Men's Loupe [Sperm Observation Kit for Smartphones]

Gain Express Gem Loupe Magnifier, Lighted Jewelry Loop Magnifier Hastings Triplet Magnifier 10x for Coins, Jewels, Stamps, Diamonds and More (With White LED and UV Light)

【Jointly Developed with Professional Appraisers】 Magnifying Glass GranCraft for Appraisal and Observation, 10x, Jewelry Loupe for Gems and Minerals 【Optimal Appraisal Magnification x 3-Layer Structure

ミザールテック MIZAR-TEC 手持ちルーペ 倍率2.5倍 レンズ径90mm 高倍率タイプ 日本製 RL-90

Kenko ルーペ デスクルーペ 4倍 DK-50

Phoenix Eyeglass Magnifier [10x & 15x & 20x & 25x] 4 types of lenses/Hands-free/LED light 2/Headband included Magnifying glass Loupe Black

Reimei Fujii Ultra Observation Loupe Teacher EW401 Glass

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ミザールテック MIZAR-TEC 手持ちルーペ倍率2.5倍レンズ径90mm 高倍率タイプ日本製 RL-90

Kenko ルーペデスクルーペ 4倍 DK-50