Mewtwo GX Secret Shining #78/73 Holofoil price and PSA 10 value

Mewtwo GX Secret Shining 78 grading math

Here is what you keep at each grade if you buy the card raw at today's price, pay PSA and $5 shipping, and sell the slab with a 13% selling fee. PSA's fee depends on what the card is worth after grading: it bills you up to the right tier if the card comes back worth more (the upcharge). PSA's cheapest open tier is Standard ($59.99). If this card grades a 10 it lands in Premier ($599), so your all-in cost is $1,423.

Grade	Sells for	PSA fee at that value	You make
PSA 10	$8,101	Premier $599	+$5,624.62
PSA 9	$1,562	Express $199	+$335.44
PSA 8	$855	Standard $59.99	−$140.16

The slab has to sell for at least $1,636 to break even. A PSA 10 sells for about 9.9 times the raw price, and a PSA 9 for about 1.9 times.

Other grades: a 9.5 sells for about $3,120 and a BGS 10 for about $12,250.

PSA tiers checked September 20, 2026. See PSA grading cost and tiers and the full list of cards worth grading for profit.

Card details

• CardMewtwo GX Secret Shining #78/73
• SetShining Legends
• PrintingHolofoil
• RarityShiny Holo Rare
• ReleasedOct 06, 2017
• EraSun & Moon Era

This is a heavily traded card: about 1.1k tracked sales, so the prices above are dependable and a graded copy should sell quickly.

See current Mewtwo GX Secret Shining 78 listings on TCGplayer

Before you grade this card

Modern cards usually come out of the pack clean, so centering and print lines decide most grades. Check the borders left to right and top to bottom, and tilt the card under light to spot print lines. Graders score centering, corners, edges and surface, and the lowest of the four usually sets the grade. Our guide to card grading shows what to look for and compares PSA, BGS and CGC.