Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6435180932

Certificate GIA 6435180932

Diamond specifications and retailer prices

From €2,328 EUR
As of November 6, 2026
Save €2,671 EUR (53%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: €4,999 EUR at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6435180932. Listed at 34 retailers as of November 5, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6435180932
Dimensions6.48 × 6.42 × 3.90 mm
L/W Ratio1.01
Top View
6.48 mm6.42 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6435180932
Side View
Table 62.0%Crown 33°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,746 EUR|Low: €2,361 EUR|High: €4,856 EUR|Avg: €3,394 EUR|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9€2,361 EUR
Retailer 3€2,399 EUR
Retailer 12€2,600 EUR
Retailer 1€2,746 EUR
Retailer 2€2,948 EUR
Retailer 5€2,951 EUR
Retailer 4€3,076 EUR
Retailer 6€3,332 EUR
Retailer 8€3,337 EUR
Retailer 7€3,502 EUR
Retailer 11€4,752 EUR
Retailer 10€4,799 EUR

35 data points across 12 retailers

34 retailers€2,328 EUR to €4,999 EUR

A
Cheapest Retailer
-
€2,328 EUR
A
Retailer 2
-
€2,361 EUR
View
A
Retailer 3
-
€2,399 EUR
View
Final sale: no returns
A
Retailer 4
-
€2,539 EUR
View
Retailer 5
-
€2,600 EUR
View
Price last confirmed 50 days ago
Retailer 6
-
€2,600 EUR
View
Price last confirmed 28 days ago
Retailer 7
-
€2,600 EUR
View
Price last confirmed 8 days ago
Retailer 8
-
€2,600 EUR
View
Price last confirmed 21 days ago
Retailer 9
-
€2,600 EUR
View
Price last confirmed 15 days ago
B+
Retailer 10
-
€2,625 EUR
View
Retailer 11
-
€2,700 EUR
View
Price last confirmed 38 days ago
A
Retailer 12
-
€2,746 EUR
View
B+
Retailer 13
-
€2,842 EUR
View
B+
Retailer 14
-
€2,842 EUR
View
B+
Retailer 15
-
€2,940 EUR
View
B+
Retailer 16
-
€2,948 EUR
View
Retailer 17
-
€2,948 EUR
View
Price last confirmed 28 days ago
B+
Retailer 18
-
€2,951 EUR
View
Retailer 19
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€3,000 EUR
View
Price last confirmed 28 days ago
Retailer 20
-
€3,000 EUR
View
Price last confirmed 45 days ago
Retailer 21
-
€3,000 EUR
View
Price last confirmed 16 days ago
B+
Retailer 22
-
€3,000 EUR
View
Retailer 23
-
€3,076 EUR
View
Price last confirmed 33 days ago
B+
Retailer 24
-
€3,196 EUR
View
Retailer 25
-
€3,329 EUR
View
Price last confirmed 22 days ago
B+
Retailer 26
-
€3,332 EUR
View
B+
Retailer 27
-
€3,337 EUR
View
B+
Retailer 28
-
€3,502 EUR
View
Retailer 29
-
€4,752 EUR
View
Price last confirmed 9 days ago
B
Retailer 30
-
€4,799 EUR
View
B
Retailer 31
-
€4,999 EUR
View
Retailer 32
-
€4,999 EUR
View
Price last confirmed 39 days ago
Retailer 33
-
€4,999 EUR
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
8b22a2a6-3c47-4f47-b165-e8d03f8bd461 · Oct 20
€4,999 EUR
$5,611 USD
View
Price last confirmed 16 days ago
33 more retailers have this diamond
Prices start from €2,328 EURSave up to €2,671 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
€2,328 EUR