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Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2245042567

Certificate GIA 2245042567

Diamond specifications and retailer prices

From €1,921 EUR
HK$16,700 HKD
As of October 29, 2026
Save €3,568 EUR (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €5,489 EUR at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct 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 2245042567. Listed at 12 retailers as of October 27, 2026, with prices from €1,921 to €5,489, a €3,568 spread on the same certified stone. NZ Jewellers lists it at €5,489. 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

1.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2245042567
Dimensions6.49 × 6.54 × 4.08 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
6.49 mm6.54 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245042567
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.6%

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 29
Current: €5,489 EUR|Low: €1,921 EUR|High: €5,626 EUR|Avg: €3,067 EUR|+14.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10€1,921 EUR
Retailer 2€2,298 EUR
Retailer 3€2,394 EUR
Retailer 5€2,541 EUR
Retailer 8€2,625 EUR
Retailer 12€2,692 EUR
Retailer 7€2,727 EUR
Retailer 11€2,852 EUR
Retailer 9€3,072 EUR
Retailer 4€4,028 EUR
Retailer 6€4,415 EUR
NZ Jewellers€5,489 EUR

28 data points across 12 retailers

12 retailers€1,921 EUR to €5,489 EUR

A
Cheapest Retailer
-
€1,921 EUR
HK$16,700 HKD
A
Retailer 2
-
€2,298 EUR
View
A
Retailer 3
-
€2,394 EUR
$2,665 USD
View
A
Retailer 4
-
€2,541 EUR
£2,227 GBP
View
A
Retailer 5
-
€2,625 EUR
$2,922 USD
View
A
Retailer 6
-
€2,692 EUR
SGD 4,049 SGD
View
A
Retailer 7
-
€2,727 EUR
$3,035 USD
View
A
Retailer 8
-
€2,852 EUR
$3,174 USD
View
A
Retailer 9
-
€3,072 EUR
View
Retailer 10
-
€4,028 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
€4,415 EUR
£3,869 GBP
View
Most Expensive
B
NZ Jewellers
b74c9b5f-6089-4205-9c3a-b0521a5c51ac · Oct 27
€5,489 EUR
$6,109 USD
View
11 more retailers have this diamond
Prices start from €1,921 EURSave up to €3,568 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
1.09ct Round
€1,921 EUR