Cross-Retailer Analysis

How diamond prices vary across retailers for the same shape, carat, colour and clarity. Live spread analysis from 100+ retailers worldwide.

When the same certified diamond is listed at multiple retailers, prices often vary significantly. Lab-Grown Radiant diamonds show the widest price variation, with an average spread of 197.4% across retailers. On average, 36% of diamonds in each category are available from two or more retailers, giving buyers meaningful comparison opportunities.

Real Savings Examples

These are actual certified diamonds currently listed at multiple retailers with different prices.

DiamondLowest PriceHighest PriceYou SaveRetailers
2.00ct E VVS2 Heart (GIA)$1,667 NZD$4,167 NZD$2,500 NZD (150%)3
0.70ct D VS1 Princess (GIA)$1,707 NZD$4,267 NZD$2,560 NZD (150%)16
0.70ct D VVS1 Asscher (GIA)$2,000 NZD$5,000 NZD$3,000 NZD (150%)6
1.73ct I VS1 Round (IGI)$2,407 NZD$6,017 NZD$3,610 NZD (150%)3
2.06ct F VS1 Oval (IGI)$1,700 NZD$4,250 NZD$2,550 NZD (150%)3
5.57ct G VS1 Emerald (IGI)$2,020 NZD$5,050 NZD$3,030 NZD (150%)5

Price Spread by Category

Categories where retailer prices vary most. Cross-retailer % shows what share of stock is listed at multiple retailers.

Lab-grown Radiant
197%
37% cross-retailer
Lab-grown Emerald
137%
30% cross-retailer
Natural Marquise
102%
36% cross-retailer
Natural Pear
98%
39% cross-retailer
Natural Radiant
85%
24% cross-retailer
Natural Round
85%
50% cross-retailer
Lab-grown Pear
78%
24% cross-retailer
Natural Oval
78%
47% cross-retailer
Lab-grown Cushion
74%
35% cross-retailer
Natural Emerald
72%
60% cross-retailer
Lab-grown Heart
71%
17% cross-retailer
Natural Princess
71%
46% cross-retailer
Natural Heart
68%
31% cross-retailer
Natural Cushion
65%
28% cross-retailer
Lab-grown Round
64%
53% cross-retailer

By Origin and Shape

Click any row to browse those diamonds in the Explorer.

CategoryAvg. Price SpreadCross-Retailer %Total Listings
Lab-Grown Radiant197.4%36.6%285
Lab-Grown Emerald137.4%30.5%153
Natural Marquise102.2%35.6%5,862
Natural Pear98.3%38.8%16,390
Natural Radiant84.7%24.0%4,107
Natural Round84.6%50.0%107,712
Lab-Grown Pear77.9%24.0%1,016
Natural Oval77.7%46.9%21,460
Lab-Grown Cushion74.2%35.4%57
Natural Emerald71.8%59.8%4,773
Lab-Grown Heart71.0%17.1%45
Natural Princess70.5%46.2%8,137
Natural Heart67.9%31.1%4,606
Natural Cushion64.6%28.1%8,025
Lab-Grown Round64.2%52.6%25,373
Lab-Grown Oval64.0%32.4%954
Natural Asscher55.7%59.3%506
Lab-Grown Marquise51.3%20.9%125
Lab-Grown Princess44.8%21.6%110
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