We are reader-supported. Buying through any red colored link on our site may earn us commissions. Learn More.

Q&A: Looking for Shiniest Round Brilliant Diamond for $4K Budget and Solitaire Setting

By Mike Fried,

Thank you so much for the crash course diamond site here. It is a lifesaver for Googling overload of information.

I’m actually trying to decide if it’s worth it to buy a moissanite or a true diamond (I hear moissanite has better fluorescence) but need to do all my homework and cover my bases.

I am thinking of proposing within a few months (end of summer) and my budget is $4000 for both the diamond and setting. I’ve asked the girlfriend and the only concerns we have are high sparkle, shine and brilliance. I’m going to assume that a solitaire setting with a round cut diamond is best for that?

Any and all help would be appreciated!

I hope you had a nice weekend. Sorry if it took an extra day or so to get back to you, but I was away for the weekend.

I’m glad we were able to help you with your diamond education. I’d be happy to help you pick a diamond, but I am not able to tell you whether to go with diamond or moissanite. Our expertise is in diamonds and there is no way I can give you an objective answer to that.

Thank you for replying to my query. I was just musing about the thought of moissanite but for now I think I will stick with the tried and true diamond route.

The $4000 budget (both setting and stone) is a bit flexible for the right diamond of course but would really like to keep it around there. We are trying to buy an apartment she’s been very understanding about keeping on a tight budget.

I like these diamonds for you:

https://www.jamesallen.com/diamonds/I-SI1-Ideal-Cut-Round-Diamond-1500355.asp

https://www.jamesallen.com/diamonds/I-SI1-Excellent-Cut-Round-Diamond-1490347.asp

They are bright, eye-clean and great values. They leave you room for a nice setting in your budget. What do you think?

Thanks so much for the suggestion Michael. Both diamonds look amazing.

The ideal cut diamond actually looks like it has more obvious inclusions (the big splotch on the left) than the excellent cut one but that may just be the picture? Should be coverable with a prong from the setting correct? The excellent cut stone looks amazing, there’s that one black spot in the middle that’s reflecting to the sides right?

For the setting I was thinking of just the simplest platinum solitaire, nothing fancy just showing off the shiny stone. How does this look pairing up with your suggestions?

https://www.jamesallen.com/engagement-rings/solitaire/platinum-2mm-knife-edge-solitaire-diamond-ring-17001.html

If I could get a slightly bigger stone by going a few hundred up (since the setting is about $650) could you help with some additional suggestions?

I would stick with the second diamond then. Spending an extra $650 will not get you a bigger diamond. 0.80ct is a threshold. You’d have to go up over a thousand dollars to get even a slight difference.

Thank you Mike did not know that! I added both in and it looks great in the picture. Just confirming the diamond

https://www.jamesallen.com/diamonds/I-SI1-Excellent-Cut-Round-Diamond-1490347.asp

and the setting are a good match? The research says platinum is obviously more durable so I want to double check with the expert before I pull the trigger.

https://www.jamesallen.com/engagement-rings/solitaire/platinum-2mm-knife-edge-solitaire-diamond-ring-17001.html

Looks like a real winner. Great choice. Please let me know how it looks when it arrives.

Thanks Mike, I’ve put a temporary hold on it while I confirm 🙂

The last thing I have to question is the whole brilliance scale, apparently there are Ideal-Scope, HCA AGA and other fun jargons to describe how much light they reflect. I input some of those into a calculator and only got a “good/very good” result, but not great. Should that worry me at all?

I don’t put much stock in the HCA. I’m not saying its inaccurate, but its incredibly difficult to value its worth. The HCA grade would be the lowest factor in determining the quality of the diamond for me. Eye-cleanliness, Excellent cut, white-ish are so much more important. If you have multiple diamonds that fit those three and are similar in price, then the HCA is a good tool to pick the winner. But otherwise it ends up eliminating diamonds for a small reason and leave you buying diamonds with bigger issues.

Thanks Mike, all I worry about is how it’ll sparkle and whether the ring will look great on her. Ring size is about a 6 but she has long skinny fingers and her body type is slender / dancer. Hopefully a 2mm knife edge won’t get lost on her hand and the .80 diamond is fine too!

…….

Hi Mike sorry to bother again but any opinion on this one? I ran into it while perusing the site some more. This is such a tough choice im racking my brain for it.

First one looks like there’s a gash on the left, second has a dark inclusion right in the middle? are these better “fire and brilliance” options and eye clean you think?

https://www.jamesallen.com/diamonds/I-SI1-Excellent-Cut-Round-Diamond-1490769.asp

https://www.jamesallen.com/diamonds/I-SI1-Ideal-Cut-Round-Diamond-1398077.asp

Neither of those is eye-clean.

Thank you Mike – I am buying the original one you recommended.

https://www.jamesallen.com/diamonds/I-SI1-Excellent-Cut-Round-Diamond-1490347.asp

I’ll let you know how it turns out!

Now to insurance and care for the ring, is there a recommended place to insure this item? Do I need to get an appraiser from somewhere to first quote the value?

I would recommend including it in your homeowners/renters insurance. That is usually the best value. They will tell you what you need.

James Allen James Allen is the leader in online diamond sales. Their imaging technology is the same as inspecting a diamond with a jeweler's loupe. They have the largest exclusive loose diamond inventory online and fantastic prices. They also have the nicest collection of lab-created diamonds online.
What we love about them:
  • No questions asked returns within 30 days of shipment. James Allen will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free International Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisals
  • One free resizing within 60 days of purchase
  • Free ring inscriptions
  • Best-in-class high quality imagery of all diamonds in stock
  • 24/7 Customer Service
  • Best-in-class packaging
Arrow down
Arrow up
Blue Nile Blue Nile is the largest and most well-known internet jewelry seller. They have a very large exclusive online inventory. Their high-quality images are catching up to James Allens' and their prices are amazing. Save 25% on settings at Blue Nile!

Please enter your email address to receive your 25% off coupon code:

What we love about them:
  • No questions asked returns within 30 days of shipment. Blue Nile will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisal
  • One free resizing within the first year of purchase
  • High quality images of about half of their diamonds
  • 24/7 Customer Service
  • 100% credit towards future upgrades (must be at least double in value)
  • Best in class fulfillment
Arrow down
Arrow up

Still afraid of getting ripped off?

Before you buy a diamond, get personal buying advice from industry veterans. We'll help you get the best diamond for the money.

Ask your diamond purchase question here

  • Hidden
  • This field is for validation purposes and should be left unchanged.

DISCLAIMER: We don't use your email for marketing. Period.

Please enter your email address to receive your 25% off coupon code:

Here is your coupon code: GFDSF3GF

Diamond Pro

Diamond Pro

  • Unfortunately, the AI chat we worked so hard training is not helping our readers the way we would like. You deserve the best advice you can get.

    Would you like to contact a human diamond pro? Just fill out this email form and we will answer you ASAP (usually within one day).

  • This field is for validation purposes and should be left unchanged.