【Sales lottery closes on 6/5 (Fri) at 10 am】10 carefully selected items including flawless diamonds with GIA certification and gray diamonds
Limited Quantity Lottery Sale.
We will be holding a lottery sale for 10 carefully selected items, including flawless diamonds with GIA certification, gray diamonds, and pink diamonds.
*Available for purchase during the June campaign period.
[Application acceptance period]
Until June 5, 2026 (Friday) 10:00 am
*Winners will be notified by email by June 6 (Saturday).
*Available for purchase during the June campaign period.
Product ① Diamond 3.0mm/0.095ct Loose (F, VS-2, Excellent)
Type of stone: Rare Stone
Size: 2.95×2.96mm
Weight: 0.095ct, F, VS-2, Excellent
Accessories: Sorting (Central Gem Laboratory), Karatz Quality Certificate, Case
Quantity: 1 piece
Price: 22,800 yen
Product ID: 32501894
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501894 (viewing page)
▶About Flawless and Internally Flawless Diamonds
Flawless and Internally Flawless refer to the clarity grade, one of the 4Cs used to evaluate diamonds. This evaluates and grades the clarity of a diamond, specifically whether there are any inclusions or blemishes within the diamond. Flawless means that a skilled appraiser cannot find any scratches or inclusions even under a 10x loupe. Internally Flawless also means no inclusions are found under 10x magnification, but microscopic chips may be barely visible. Both types of diamonds are rare.
Product ② Internally Flawless Diamond 3.8mm/0.217ct Loose (D, IF, 3Excellent H&C) GIA
Type of stone: Rare Stone
Size: 3.84×3.88mm
Weight: 0.217ct, D, IF, 3Excellent H&C
Accessories: Appraisal Report (GIA), Sorting (Central Gem Laboratory), Case
Quantity: 1 piece
Price: 98,000 yen
Product ID: 32501919
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501919 (viewing page)
Product ③ Internally Flawless Diamond 4.2mm/0.272ct Loose (D, IF, 3Excellent H&C) GIA
Type of stone: Rare Stone
Size: 4.2×4.2mm
Weight: 0.272ct, D, IF, 3Excellent H&C
Accessories: Appraisal Report (GIA), Sorting (Central Gem Laboratory), Case
Quantity: 1 piece
Price: 148,000 yen
Product ID: 32501920
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501920 (viewing page)
Product ④ Flawless Diamond (H&C) 4.2mm/0.280ct Loose (D, FL, 3Excellent H&C) GIA&CGL
Type of stone: Rare Stone
Size: 4.25×4.28mm
Weight: 0.280ct, D, FL, 3Excellent H&C
Accessories: Appraisal Report (GIA), Appraisal Report (Central Gem Laboratory), Case
Quantity: 1 piece
Price: 210,000 yen
Product ID: 32501886
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501886 (viewing page)
Product ⑤ Flawless Diamond (H&C) 4.3mm/0.290ct Loose (D, FL, 3Excellent H&C) GIA&CGL
Type of stone: Rare Stone
Size: 4.3×4.3mm
Weight: 0.290ct, D, FL, 3Excellent H&C
Accessories: Appraisal Report (GIA), Appraisal Report (Central Gem Laboratory), Case
Quantity: 1 piece
Price: 218,000 yen
Product ID: 32501885
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501885 (viewing page)
Product ⑥ Internally Flawless Diamond (H&C) 0.527ct Loose (E, IF, 3Excellent H&C)
Type of stone: Rare Stone
Size: 5.17×5.18mm
Weight: 0.527ct, E, IF, 3Excellent H&C
Accessories: Appraisal Report (GIA), Sorting (Central Gem Laboratory), Case
Quantity: 1 piece
Price: 228,000 yen
Product ID: 32501939
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501939 (viewing page)
▶About Gray Diamonds
Gray diamonds are captivating for their sharp coloration. The gray color is mostly attributed to a high hydrogen content. Rarely, it can also be caused by boron, similar to blue diamonds. Gray diamonds themselves are rare, but those that exhibit blue or violet hues are extremely rare and command a higher value. Gray diamonds are primarily found in Australia, South Africa, Russia, India, and Brazil.
Product ⑦ Gray Diamond 2.5mm/0.064ct Loose (LIGHT BLUISH GRAY, SI-1)
Type of stone: Rare Stone
Size: 2.49×2.5mm
Weight: 0.064ct, LIGHT BLUISH GRAY, SI-1
Accessories: Sorting (Central Gem Laboratory), Karatz Quality Certificate, Case
Quantity: 1 piece
Price: 36,800 yen
Product ID: 32501929
*Dust may appear prominent due to 44x magnification, but there is no actual dust.
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501929 (viewing page)
Product ⑧ Gray Diamond 2.1mm/0.039ct Loose (LIGHT BLUISH GRAY, VS-1)
Type of stone: Rare Stone
Size: 2.11×2.17mm
Weight: 0.039ct, LIGHT BLUISH GRAY, VS-1
Accessories: Sorting (Central Gem Laboratory), Karatz Quality Certificate, Case
Quantity: 1 piece
Price: 46,800 yen
Product ID: 32501928
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501928 (viewing page)
Product ⑨ Brown Diamond 5.3mm/0.600ct Loose (FANCY LIGHT BROWN, SI-2)
Type of stone: Rare Stone
Size: 5.3×5.34mm
Weight: 0.600ct, FANCY LIGHT BROWN, SI-2
Accessories: Sorting (Central Gem Laboratory), Karatz Quality Certificate, Case
Quantity: 1 piece
Price: 39,800 yen
Product ID: 32501930
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501930 (viewing page)
▶About Pink Diamonds
The exact cause of the beautiful color in pink diamonds is not fully understood, but it is generally attributed to distortions in their crystal structure. They are said to be found in less than 1% of colorless diamonds, making them highly rare and valuable.
The intensity of the color is divided into six types: Fancy Vivid, Fancy Intense, Fancy Deep, Fancy Dark, Fancy, and Fancy Light. The more intense the color, the higher the value. In addition to the color intensity names, there are also color names that describe the specific shade of pink, such as Pink, Purplish Pink, Brownish Pink, and Orangy Pink. Brownish Pink and Orangy Pink are considered less valuable than Pink, while Purplish Pink is popular in Japan and is generally valued similarly to or slightly less than Pink.
Product ⑩ Pink Diamond (Cushion Cut) 0.157ct Loose (FANCY DEEP PURPLE PINK, I1)
Type of stone: Rare Stone
Size: 3.09×2.63mm
Weight: 0.157ct, FANCY DEEP PURPLE PINK, I1
Accessories: Sorting (AGT Gem Laboratory), Karatz Quality Certificate, Case
Quantity: 1 piece
Price: 198,000 yen
Product ID: 32501927
If you would like to see more photos, please click here: https://store.karatz.jp/products/32501927 (viewing page)
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【How to purchase if you win and points to note】
・Regarding the results of the lottery sale, only winners will be contacted by email from our company. Please be aware that we will not contact those who are not selected.
・Winners will receive an email from us after the deadline with a URL to a dedicated page on the Karatz STORE, where you can complete the procedure. Payment methods include credit card, bank transfer, and convenience store payment.
・Purchases must be made within 72 hours from the time the winning email is sent. If the purchase is not made within that time, another lottery will be conducted. Please note that we will not contact you separately in this case.
・Changes or cancellations to lottery sale applications cannot be made. Please note that if you cancel due to customer convenience, we may refuse your participation in future Karatz lottery sales. If you must cancel your application, please contact us during the lottery sale application period.
・While we strive to ensure that photos accurately represent the actual colors, they may appear slightly different from the actual product due to lighting conditions during photography, your monitor environment, etc. Additionally, a penlight may be used for photography.
・If you have any questions about the product, please inquire before purchasing.
・While only about three photos are posted on the lottery sale page, multiple photos are available on the product page, so please check those photos as well.
