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Round Shape 1 Carat Loose Diamond K Color I1 Clarity Very Good Cut GIA Certified Diamond
Round Shape 1 Carat Loose Diamond K Color I1 Clarity Very Good Cut GIA Certified Diamond
−34%
Jewelry · Brilliance.com

A GIA-certified round diamond with paperwork to prove it

Round Shape 1 Carat Loose Diamond K Color I1 Clarity Very Good Cut GIA Certified Diamond

A certified round loose diamond for shoppers setting a ring or adding a stone to a collection.

Deal score 5.7 · Good deal
$1,904.00$2,868.00 Brilliance.com's regular price

You save $964.00 at Brilliance.com

Checking it's still available…

Why it's a great deal

  • Brilliance.com lists its regular price at $2,868.00: 34% off by its own figures
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Every store we checked

  • Brilliance.comNew

    In stock

    $1,904.00Observed at 8:42 AM
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Price history and every store's price →

From Brilliance.com

  • 1.00 carat round natural diamond, 6.28 mm across
  • K color grade
  • I1 clarity
  • Very Good cut for good light return at a lower price
  • 57 or 58 facets cut for maximum sparkle
  • Brilliant facets help hide small inclusions and hints of color
Materials
Natural diamond
Guarantee
Lifetime warranty
Returns
30-day returns, no questions asked; extended holiday returns until January 30, 2027
Shipping
Free shipping, fast and insured delivery; estimated to ship by Tuesday, November 17
In the box
Loose diamond, GIA certificate

What buyers say

Buyers like
  • Ring was perfect and arrived on time
  • Great ring for the price
  • Helpful customer service
  • Easy ordering and kept updated on the ring
  • Best prices seen and worked with the customer throughout
  • Fast shipping
Buyers complain about
  • It took a little time, but was worth the wait

Specs

Shape
Round
Carat Weight
1.00 ct
Clarity
I1
Certification
GIA
Table %
55 %
Measurements
6.24x6.28x4.01 mm
Length To Width
1.01
Girdle
Medium - Thick
Fluorescence
Faint

About the Round Shape 1 Carat Loose Diamond K Color I1 Clarity Very Good Cut GIA Certified Diamond

This is a 1.00 carat round brilliant natural diamond, GIA certified, graded K color and I1 clarity with a Very Good cut. It measures about 6.24 by 6.28 mm, so it faces up close to a typical one-carat round. The K color and I1 clarity are the trade-offs that keep the price down; the GIA report lets you judge the inclusions and tint yourself before buying. The best new price is $1,904 at Brilliance.com as of November 5, 2026, and only one store lists it new, so there is no cheaper new option to compare against right now.

Best forBuyers who want a full one-carat round on a tight budgetSetting in yellow or rose gold, where K color reads warmerShoppers who want GIA paperwork at a low priceA center stone for a bezel or halo that hides edge inclusions
Pros
  • GIA certified, so color, clarity and cut are independently graded
  • Full 1.00 carat with a near-6.3 mm spread
  • Very Good cut gives decent light return for the grade
  • Faint fluorescence can soften the warm K tint in daylight
  • Lowest price tier for a certified one-carat round

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Cons
  • I1 clarity means eye-visible inclusions are likely
  • K color shows a clear warm tint, especially in white metal
  • Very Good cut, not Excellent, so less sparkle than top-cut stones
  • Only one store lists it new, so little price competition
  • Loose stone: setting and labor are extra

What reviewers say

Buyer feedback on this listing is about the finished ring and the buying experience rather than the stone's grades. Owners call it a great ring for the price and praise fast shipping and helpful service. One noted a short wait that was worth it.

Pros
  • Good value for the price
  • Fast shipping
  • Helpful, responsive customer service
  • Easy ordering with updates along the way
Cons
  • Order took a little longer than expected

Questions and answers

Is an I1 clarity diamond a good buy?
Only if you inspect it. I1 stones usually have inclusions visible to the naked eye, so ask for close-up photos or video in daylight before you commit. In a bezel or halo setting, edge inclusions can be hidden.
Will K color look yellow?
Yes, it has a noticeable warm tint, most obvious next to white metal or higher-color stones. Yellow or rose gold settings make the warmth look intentional rather than off.
Is Very Good cut good enough?
It returns less light than an Excellent cut, so it will look a bit less brilliant side by side. At this price and grade, Very Good is a reasonable compromise.
What comes with the diamond?
The loose diamond and its GIA certificate. A setting, band and any ring sizing are separate purchases.
Is $1,904 a good price?
It is the only new price listed as of November 5, 2026, so there is nothing cheaper to compare it to. Compare it against other GIA-certified 1 carat K/I1 rounds before deciding.
Can I return it?
Return terms are set by the seller, so confirm the window and whether a loose diamond must be unmounted before you buy.