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Slightly Included Diamonds With Smart Value


James Allen's slightly included diamond collection features SI1 and SI2 diamonds with minor inclusions that require magnification to detect in most cases. Each SI diamond undergoes careful selection to ensure eye-clean appearance, particularly important at the SI2 grade, where inclusion visibility varies significantly between stones. Available in round, princess, cushion, oval, and all popular shapes, these diamonds maximize budget by prioritizing visible beauty over microscopic perfection. An SI1 diamond offers more consistent eye-clean appearance across all shapes and sizes, while an SI2 diamond requires careful inspection through high-resolution imaging to verify inclusions remain invisible during normal viewing. The clarity grades work beautifully in solitaire, halo, and pavé settings where smart buyers allocate budget toward size and cut quality rather than clarity levels invisible without magnification. Included diamonds at SI grades provides significant savings compared to VS2 or VS1 while maintaining a beautiful appearance in brilliant cuts where faceting patterns naturally hide minor inclusions.

Style Tip: Choose SI1 diamonds in brilliant cuts like round or cushion where faceting naturally hides inclusions, using savings to invest in excellent cut grade that maximizes sparkle and visual beauty.

Frequently Asked Questions

What does slightly included diamond mean?

Slightly included refers to diamonds graded SI1 or SI2 on the GIA clarity scale, indicating minor inclusions visible under 10x magnification. Many SI diamonds appear eye-clean to the naked eye, offering excellent value by balancing quality with affordability for smart buyers.

Is an SI diamond good quality?

Yes. SI diamonds offer good quality when selected carefully for eye-clean appearance. SI1 diamonds provide more consistent clarity than SI2, though both grades can deliver beautiful visible appearance at significant savings compared to VS1 or VS2 clarity levels that look identical during normal viewing.

What's the difference between SI1 and SI2 diamonds?

SI1 diamonds have fewer or smaller inclusions than SI2, making SI1 more consistently eye-clean across all shapes and sizes. SI2 requires careful inspection to verify inclusions aren't visible, particularly in larger carats or step cuts like emerald or asscher where clarity shows more readily.

Are SI diamonds eye-clean?

Many SI diamonds are eye-clean, especially SI1 in brilliant cuts. SI2 varies more; some appear perfectly clean while others show visible inclusions. Use high-resolution images to verify individual stones, particularly for oval, emerald cut, or larger carat weights where inclusions become more noticeable.

Do SI inclusions affect diamond sparkle?

No, in most cases. Slightly included diamonds sparkle beautifully when cut well, as minor inclusions don't impact light performance. A diamond's brilliance depends on cut quality rather than clarity grade, so an excellent-cut SI diamond shines just as brightly as higher clarity grades.

Can I use SI diamonds in engagement rings?

Absolutely. SI diamonds work excellently in engagement rings, providing eye-clean beauty at accessible prices. Choose SI1 for consistent clarity or carefully selected SI2 in brilliant cuts like round cut diamonds or princess cut where faceting naturally disguises minor inclusions during wear.