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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2567270628

Certificate GIA 2567270628

Diamond specifications and retailer prices

From €1,605 EUR
As of November 6, 2026
Save €2,124 EUR (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €4,513 EUR at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567270628. Listed at 19 retailers as of November 4, 2026, with a 132% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2567270628
Dimensions6.40 × 6.38 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567270628
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: €1,605 EUR|Low: €1,605 EUR|High: €3,802 EUR|Avg: €2,181 EUR|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 1€1,605 EUR
Retailer 6€1,605 EUR
Retailer 5€1,807 EUR
Retailer 11€1,830 EUR
Retailer 14€1,867 EUR
Retailer 3€1,946 EUR
Retailer 10€1,958 EUR
Retailer 4€1,969 EUR
Retailer 7€2,042 EUR
Retailer 12€2,266 EUR
Retailer 9€2,445 EUR
Retailer 8€2,509 EUR
Retailer 2€3,098 EUR
Retailer 13€3,729 EUR

22 data points across 14 retailers

19 retailers€1,605 EUR to €3,729 EUR

A
Cheapest Retailer
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€1,605 EUR
A
Retailer 2
-
€1,605 EUR
View
Retailer 3
-
€1,807 EUR
View
Price last confirmed 11 days ago
A
Retailer 4
-
€1,830 EUR
View
A
Retailer 5
-
€1,867 EUR
View
A
Retailer 6
-
€1,946 EUR
View
A
Retailer 7
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€1,958 EUR
View
A
Retailer 8
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€1,961 EUR
View
A
Retailer 9
-
€1,969 EUR
View
Final sale: no returns
A
Retailer 10
-
€2,042 EUR
View
Retailer 11
-
€2,159 EUR
View
Price last confirmed 19 days ago
A
Retailer 12
-
€2,266 EUR
View
Retailer 13
-
€2,284 EUR
View
Price last confirmed 22 days ago
A
Retailer 14
-
€2,445 EUR
View
Retailer 15
-
€2,491 EUR
View
Price last confirmed 19 days ago
B+
Retailer 16
-
€2,509 EUR
View
B+
Retailer 17
-
€3,098 EUR
View
B
Retailer 18
-
€3,729 EUR
View
Most Expensive
NZ Jewellers
70971cb7-2c63-445b-9832-600e7f6dc01d · Oct 17
€4,513 EUR
$5,039 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from €1,605 EURSave up to €2,124 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
€1,605 EUR