Costco offers it for $2,400. That comes in under James Allen’s offer of a similar ring for $2,890. But there’s a catch. Costco’s offer for $2,400 It’s Costco item number 973597. You can see it live at Costco, unless and until it’s sold out. James Allen offers a ring with the same diamond specs for […]
Is this giant 4-Carat Costco diamond really a good buy at $60,000? Pay $44,290 instead. (Or even less, for $21,780.)
Costco offers this ring for $59,999.99. You can get the same design, with a better diamond, and from a top-level retailer, for as low as $22,000. Costco offers this ring for $59,999.99 (Turns out there IS actually a GIA certificate. Read on to know why it wasn’t easy to spot in this Costco listing. (But […]
Is this Costco diamond worth it? Round Brilliant 1.63 ct VVS2 Clarity, E Color Diamond Platinum Solitaire Ring (Item 1191488)
Bottom line: At James Allen, you can get a diamond with a better color grade, and all the other specs the same, for $6,150 less. Here’s how. (It’s easy.) Also, you can get a diamond ring with the exact same specs from James Allen for $6,560. That’s $14,440 less than the Costco ring. I prove […]
Is this Costco diamond worth it? Round Brilliant 2.50 ct VS2 Clarity, I Color Diamond Platinum Solitaire Ring (Item 1017829) for $25K.
Bottom line: You can get the same or better quality diamond ring for $3,600 less at the famed diamond retailer, James Allen. You can even get a better diamond ring for $15,300 less at James Allen. Oh yes, you can. I’ll prove it now in hard facts, figures, and images. The Costco offer: $24,999.99 GIA […]
Is this Costco diamond ring worth it? A 1-Carat Round Brilliant Flanked by Two 0.15-Carat Baguette Diamonds, in Platinum
When asking — and clearly answering — whether a specific Costco diamond is worth buying, I love using data and hard figures. I prove my case with numbers. I compare Costco diamond ring offers to rings from other highly reputable online diamond ring retailers. James Allen is my go to source. They usually win, but […]
Is this Costco diamond ring worth it? Emerald Cut 3.23 ctw VVS2 Clarity, G Color Diamond Platinum Engagement Ring.
I compare as many diamond engagement rings as I can based on the facts: on data, and on specs, and on prices. Today’s value comparison starts with a Costco Emerald Cut 3.23 ctw VVS2 Clarity, G Color Diamond Platinum Engagement Ring. Bottom line: You can get a diamond ring with the same specs (or better) […]
Is this Costco diamond worth it? Square Emerald Cut 1.70 ct VVS2 Clarity F Color Diamond Platinum Solitaire Ring
I check Costco prices and quality of diamond rings against the price and quality of other highly reputable online jewelers. I compare by the data and the specs. Today’s Costco diamond is this Square Emerald Cut 1.70 ct VVS2 Clarity F Color Diamond Platinum Solitaire Ring. (It’s one of a kind, so it could easily […]
Is This Costco Diamond Worth it? A Square Emerald Cut (Asscher Cut) 1.98 ctw VVS2 Clarity, F Color Diamond Platinum Wedding Ring
I compare Costco (and other) diamond rings and jewelry based on the data. I only compare to trustworthy retailers. Is that Costco diamond you’re looking at worth it? In today’s comparison, I look at this Square Emerald Cut 1.98 ctw VVS2 Clarity, F Color Diamond Platinum Engagement Ring. (It’s available at time of publication. Because […]
Are these Costco diamond stud earrings for $700 worth it? The alternative price may shock you.
I compare diamond jewelry based on hard data. In this comparison, I look at this set of Costco 14K White Gold diamond stud earrings for $699.99. And I ask: Can you get the same (or better) diamond earrings for less elsewhere, from a highly reputable retailer? Or are these Costco diamonds worth it, as the […]
Which is better for this 1-carat diamond engagement ring: Szul or James Allen?
I write up diamond shopping comparisons, by the facts and hard numbers. In today’s comparison , something very unusual happens: (with a couple of caveats!) Szul seems to possibly beat James Allen for value. But does Szul really win, in the end? What will the hard data and numbers show? What does logical, scientific thinking […]









