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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

GD • E/SI1 • GIA 6392299025

Certificate GIA 6392299025

Diamond specifications and retailer prices

From €1,879 EUR
As of October 31, 2026
Save €3,594 EUR (66%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,473 EUR at NZ Jewellers · As of November 5, 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 standard cut grade and certified by GIA 6392299025. Listed at 24 retailers as of October 31, 2026, with prices from €1,879 to €5,473, a €3,594 spread on the same certified stone. NZ Jewellers lists it at €5,473. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6392299025
Dimensions6.18 × 6.14 × 4.04 mm
L/W Ratio1.01
Top View
6.18 mm6.14 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6392299025
Side View
Table 58.0%Crown 38.5°Girdle: THK-VTKPavilion 40.4°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €2,504 EUR|Low: €1,874 EUR|High: €4,401 EUR|Avg: €2,663 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10€1,879 EUR
Retailer 11€1,904 EUR
Retailer 2€2,344 EUR
Retailer 9€2,368 EUR
Retailer 3€2,416 EUR
Retailer 1€2,504 EUR
Retailer 4€2,651 EUR
Retailer 5€2,755 EUR
Retailer 8€2,920 EUR
Retailer 6€3,195 EUR
Retailer 7€4,366 EUR

31 data points across 11 retailers

24 retailers€1,879 EUR to €5,473 EUR

A
Cheapest Retailer
-
€1,879 EUR
A
Retailer 2
-
€1,904 EUR
View
B+
Retailer 3
-
€2,255 EUR
View
B+
Retailer 4
-
€2,344 EUR
View
B+
Retailer 5
-
€2,368 EUR
View
B+
Retailer 6
-
€2,416 EUR
View
Final sale: no returns
B+
Retailer 7
-
€2,471 EUR
View
B+
Retailer 8
-
€2,504 EUR
View
B+
Retailer 9
-
€2,557 EUR
View
B+
Retailer 10
-
€2,618 EUR
View
Retailer 11
-
€2,618 EUR
View
Price last confirmed 8 days ago
Retailer 12
-
€2,634 EUR
View
Price last confirmed 109 days ago
B+
Retailer 13
-
€2,651 EUR
View
B+
Retailer 14
-
€2,718 EUR
View
B+
Retailer 15
-
€2,744 EUR
View
B+
Retailer 16
-
€2,755 EUR
View
B+
Retailer 17
-
€2,920 EUR
View
Retailer 18
-
€2,944 EUR
View
Price last confirmed 33 days ago
B+
Retailer 19
-
€3,020 EUR
View
B
Retailer 20
-
€3,195 EUR
View
B
Retailer 21
-
€4,366 EUR
View
B
Retailer 22
-
€4,933 EUR
View
C
Retailer 23
-
€5,158 EUR
View
Most Expensive
C
NZ Jewellers
21b345b7-76c4-4d88-b70b-daf06d2a06a4 · Nov 5
€5,473 EUR
$6,143 USD
View
23 more retailers have this diamond
Prices start from €1,879 EURSave up to €3,594 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
€1,879 EUR