Weight Atlas
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About this object

Cullinan diamond

Cullinan diamond has an estimated weight of ≈621 grams. It ranks #80 of 128 in the Nature & Materials category.

Source excerpt: The largest gem-quality rough diamond ever found.

Position in category

128 Items in category 1,265,106,122 tonnes Category average 6 kilograms Category median 0.2 grams–161,932,476,090 tonnes Category span

Similar weight

Basketball ≈600 grams Downed tree branch ≈600 grams Pair of blue jeans ≈600 grams Partially consumed one-liter bottle of soda, with 0.6L remaining 600 grams

Weight ladder

How this item compares with its eight closest neighbours on a logarithmic scale.

≈621 grams
Downed tree branch ≈600 grams Pair of blue jeans ≈600 grams Partially consumed one-liter bottle of soda, with 0.6L remaining 600 grams Reproduction And Life Cycle 400–800 grams Cullinan diamond This item ≈621 grams Heavier Hula Hooping May Produce Lower Back Pain 454–907 grams Collared Peccary (adult) ≈699–700 grams Canon EOS 90D ≈701 grams Iron Heart 25 0z super heavyweight Denim 709 grams

Weight details

Typical ≈621 grams
Minimum 621 grams
Maximum 621 grams
Value type Approximate
Weight reference text

Cullinan diamond weighs about 621 grams

Unit conversions

Kilograms0.621 kilograms
Pounds1.37 pounds
Metric tonnes0.000621 tonnes
Grams621 grams
Ounces21.9 ounces
Stones0.098 stones

Source

1 sources
The 10 Heaviest Diamonds in the World weightofstuff.com · Nature & Materials · Section: Weight reference · Article updated 2024-05-17
View source

More from the same article

These entries come from the same source articles, so you can keep exploring the original context.

Incomparable Diamond (81.5 g) ≈178 grams Millennium Star Diamond (40.6 g) 155 grams Jubilee Diamond (49.070 g) 130 grams Golden Jubilee diamond ≈109 grams Cullinan I ≈106 grams De Beers Diamond (46.93 g) 85.7 grams

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Same category

Downed tree branch ≈600 grams Painite ≈586 grams Denim Fabric 142–907 grams Ice Cream ≈450 grams GRT Jewelers Gold Earrings 1 kilograms About 3/10 a liter of water 1 kilograms

Frequently asked questions

How much does Cullinan diamond weigh?

Cullinan diamond typically weighs about ≈621 grams, within a recorded range of 621 grams.

Where does Cullinan diamond rank among Nature & Materials?

It ranks #80 of 128 entries in Nature & Materials, heavier than 12% of items in the dataset.

Where do these weight figures come from?

The data comes from 1 source articles on weightofstuff.com, most recently updated on 2026-11-06.

Dataset information

Items indexed <built-in method items of dict object at 0x7fb451c2ba80>
Source articles 430
Categories 11
Confidence Medium
Category Nature & Materials
Category rank #80 of 128
Weight position Heavier than 12% of items
Updated 2026-11-06
Measurement type Mass
Dataset ID cullinan-diamond
URL slug cullinan-diamond

Confidence reflects how explicit the source wording is: exact values are high, ranges or approximations are medium, and vague statements are low.