{"product_id":"1-65ct-d-vs1-round-lab-grown-diamond-4neyx","title":"1.65 ct D VS1 Round Lab-Grown Diamond","description":"\u003cp\u003e\u003cstrong\u003eGrade score 96.9 · Exceptional\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCrown 33.6° and pavilion 40.9° are properly complementary.\u003c\/b\u003e At a 57.0% table a 33.6° crown calls for 40.98° of pavilion and this stone delivers 40.9° — off by 0.08°. Light entering the crown is turned back through the table rather than leaking out of the pavilion. This is the one thing a round brilliant must get right, and it does. It sits on the locus Sasián \u003ci\u003eet al.\u003c\/i\u003e (2007) identified as the best-performing set, and that Cowing (2005) calls the axis of Excellent.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStrongly brightness-biased\u003c\/b\u003e (lean 5\/100). The shallow crown and large table return light white rather than splitting it. Bright and clean indoors and under overcast sky, and it photographs well — but little fire under spotlights, and watch for a flat, glassy look if the contrast pattern is weak. Judge it in everyday diffuse light before concluding — that is where this make earns its keep.\u003c\/p\u003e\u003cp\u003eFrom the certificate text: the comments carry \u003cb\u003eno treatment statement\u003c\/b\u003e either way — worth asking the vendor, since most CVD stones receive post-growth HPHT decolourising.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTop tier\u003c\/b\u003e — score 96.9. The geometry is as strong as certificate numbers can show: crown and pavilion in proper complement, the table where it belongs. This is the standard haus1919 curates to, and this stone clears it with room to spare. What remains — inclusion position and optical symmetry — is confirmed on the actual stone, which no certificate can show.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e3D ray-traced simulation from certificate proportions. Not a photo of this stone. Accurate representation of optical performance, but it does not account for facet variations and does not show clarity or inclusions. \u003ca href=\"\/pages\/questions-and-method\"\u003eSee more\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"haus1919","offers":[{"title":"Default Title","offer_id":68227981344991,"sku":"H19-4NEYX","price":990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/2590\/3327\/files\/studio_c740859d-3d48-4926-ae6a-5efce67ee22b.webp?v=1792686183","url":"https:\/\/haus1919.com\/products\/1-65ct-d-vs1-round-lab-grown-diamond-4neyx","provider":"Haus1919","version":"1.0","type":"link"}