Best Value in United States

Categories with the highest price spreads across retailers, where comparison shopping saves the most. Pricing shown in USD.

Last updated 29 October 2026 · Refreshed daily across more than one hundred retailers

Across the 50 categories shown below, the average price spread between retailers is 312%. Lab-Grown Oval 2.50-2.99 has the widest spread at 476.9%, meaning comparison shopping in this category can save you significantly. Categories with higher spreads offer the most savings potential when you compare across multiple retailers.

Top Price Spreads

The 20 categories where retailer prices vary the most. A wider spread means more savings from comparison shopping.

1
Lab-Grown Oval 2.50-2.99
477%
save up to $2,225
2
Natural Oval 2.50-2.99
422%
save up to $2,943
3
Lab-Grown Princess 3.00-3.99
420%
save up to $2,522
4
Natural Emerald 0.50-0.74
397%
save up to $4,524
5
Natural Asscher 3.00-3.99
366%
save up to $31.6K
6
Lab-Grown Cushion 1.50-1.99
363%
save up to $2,224
7
Lab-Grown Oval 2.00-2.49
361%
save up to $1,902
8
Natural Princess 2.00-2.49
359%
save up to $1,058
9
Lab-Grown Round 3.00-3.99
348%
save up to $2,501
10
Lab-Grown Princess 3.00-3.99
347%
save up to $2,643
11
Natural Emerald 2.00-2.49
347%
save up to $14.7K
12
Natural Emerald 3.00-3.99
341%
save up to $21.1K
13
Natural Emerald 1.00-1.24
338%
save up to $10.1K
14
Natural Pear 4.00-4.99
336%
save up to $6,525
15
Natural Marquise 0.30-0.49
335%
save up to $7,708
16
Lab-Grown Round 0.75-0.99
332%
save up to $2,292
17
Natural Round unknown
328%
save up to $35.5K
18
Natural Marquise 0.20-0.29
328%
save up to $45.9K
19
Natural Emerald 0.50-0.74
322%
save up to $3,780
20
Natural Round 0.20-0.29
317%
save up to $7,913
CategoryPrice SpreadRetailersLowest Price
Lab-Grown Oval 2.50-2.99476.9%12$467/ct
Natural Oval 2.50-2.99422.1%27$697/ct
Lab-Grown Princess 3.00-3.99419.6%12$601/ct
Natural Emerald 0.50-0.74396.6%22$1,141/ct
Natural Asscher 3.00-3.99366.2%15$8,634/ct
Lab-Grown Cushion 1.50-1.99362.7%9$613/ct
Lab-Grown Oval 2.00-2.49360.8%20$527/ct
Natural Princess 2.00-2.49359.2%19$295/ct
Lab-Grown Round 3.00-3.99348.4%23$718/ct
Lab-Grown Princess 3.00-3.99347.1%24$761/ct
Natural Emerald 2.00-2.49346.8%20$4,238/ct
Natural Emerald 3.00-3.99341.3%18$6,189/ct
Natural Emerald 1.00-1.24337.9%22$2,981/ct
Natural Pear 4.00-4.99336.5%26$1,939/ct
Natural Marquise 0.30-0.49335.1%18$2,300/ct
Lab-Grown Round 0.75-0.99331.6%32$691/ct
Natural Round unknown328.0%8$10,838/ct
Natural Marquise 0.20-0.29327.8%11$14,009/ct
Natural Emerald 0.50-0.74321.6%20$1,175/ct
Natural Round 0.20-0.29317.0%11$2,496/ct
Lab-Grown Heart 5.00-9.99311.5%28$361/ct
Lab-Grown Round 1.50-1.99311.0%18$604/ct
Lab-Grown Princess 3.00-3.99309.6%36$884/ct
Lab-Grown Princess 1.50-1.99308.8%15$608/ct
Natural Emerald 0.30-0.49306.1%15$2,056/ct
Natural Oval 0.75-0.99296.0%18$7,221/ct
Natural Marquise 0.20-0.29293.7%10$3,943/ct
Natural Marquise 0.30-0.49292.7%15$3,878/ct
Natural Pear 2.50-2.99292.0%14$1,169/ct
Natural Heart 0.30-0.49288.6%20$13,903/ct
Natural Oval 5.00-9.99283.5%27$1,659/ct
Lab-Grown Round 3.00-3.99282.4%24$616/ct
Natural Oval 3.00-3.99281.5%27$1,485/ct
Lab-Grown Asscher 3.00-3.99281.3%38$997/ct
Lab-Grown Oval 2.00-2.49273.5%15$1,020/ct
Natural Pear 0.50-0.74272.2%20$1,732/ct
Lab-Grown Oval 1.00-1.24271.0%14$450/ct
Natural Round 0.50-0.74270.1%31$1,071/ct
Lab-Grown Princess 0.75-0.99269.9%11$398/ct
Lab-Grown Princess 2.50-2.99269.9%15$590/ct
Natural Oval 1.25-1.49268.3%23$6,933/ct
Natural Oval 0.20-0.29267.6%12$821/ct
Natural Oval 0.30-0.49266.9%22$8,902/ct
Lab-Grown Radiant 2.50-2.99262.2%36$526/ct
Natural Radiant 0.20-0.29261.8%12$18,542/ct
Natural Pear 0.20-0.29261.2%14$3,144/ct
Natural Pear 0.30-0.49260.6%25$9,771/ct
Lab-Grown Oval 1.50-1.99260.2%20$747/ct
Natural Heart 0.30-0.49259.9%15$3,743/ct
Natural Oval 0.20-0.29259.7%8$832/ct
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