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
2.52ct G VVS2 Heart (IGI)$2,267 NZD$5,667 NZD$3,400 NZD (150%)4
0.70ct D VS1 Princess (GIA)$1,707 NZD$4,267 NZD$2,560 NZD (150%)16
4.10ct G VVS2 Round (IGI)$1,677 NZD$4,192 NZD$2,515 NZD (150%)6
5.34ct E VVS2 Oval (IGI)$2,005 NZD$5,013 NZD$3,008 NZD (150%)3
3.01ct E VVS1 Emerald (IGI)$2,430 NZD$6,075 NZD$3,645 NZD (150%)5
5.02ct F VVS2 Pear (IGI)$2,037 NZD$5,092 NZD$3,055 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
141%
31% cross-retailer
Natural Marquise
108%
36% cross-retailer
Natural Pear
98%
39% cross-retailer
Natural Radiant
87%
24% cross-retailer
Natural Round
85%
50% cross-retailer
Natural Oval
79%
47% cross-retailer
Lab-grown Pear
77%
24% cross-retailer
Lab-grown Cushion
74%
35% cross-retailer
Natural Princess
72%
46% cross-retailer
Natural Emerald
72%
60% cross-retailer
Lab-grown Heart
71%
17% cross-retailer
Natural Heart
70%
31% cross-retailer
Natural Cushion
66%
28% cross-retailer
Lab-grown Oval
65%
32% 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 Emerald141.5%31.4%155
Natural Marquise108.3%35.7%5,083
Natural Pear98.4%39.1%15,438
Natural Radiant87.3%24.0%3,254
Natural Round85.4%49.7%107,406
Natural Oval78.9%46.8%20,408
Lab-Grown Pear77.1%24.0%1,020
Lab-Grown Cushion74.2%35.4%57
Natural Princess72.1%46.3%7,474
Natural Emerald71.8%59.7%4,775
Lab-Grown Heart71.0%17.1%45
Natural Heart69.9%30.9%3,671
Natural Cushion66.1%27.9%7,270
Lab-Grown Oval65.1%32.0%946
Lab-Grown Round64.2%52.7%25,407
Natural Asscher55.7%59.3%506
Lab-Grown Marquise51.3%20.9%125
Lab-Grown Princess41.9%20.3%120
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