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Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1553602254

Certificate GIA 1553602254

Diamond specifications and retailer prices

From €2,465 EUR
A$4,236 AUD
As of October 31, 2026
Save €2,618 EUR (52%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €5,082 EUR at NZ Jewellers · As of October 30, 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 1553602254. Listed at 8 retailers as of October 30, 2026, with prices from €2,465 to €5,082, a €2,618 spread on the same certified stone. NZ Jewellers lists it at €5,082. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1553602254
Dimensions6.60 × 6.57 × 4.05 mm
L/W Ratio1.00
Star length50%
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather
Top View
6.60 mm6.57 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553602254
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.5%

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: €5,082 EUR|Low: €2,126 EUR|High: €5,082 EUR|Avg: €3,582 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5€2,692 EUR
Retailer 6€2,784 EUR
Retailer 2€3,245 EUR
Retailer 7€3,266 EUR
Retailer 4€3,382 EUR
Retailer 3€4,905 EUR
NZ Jewellers€5,082 EUR

21 data points across 7 retailers

8 retailers€2,465 EUR to €5,082 EUR

A
Cheapest Retailer
-
€2,465 EUR
A$4,236 AUD
A
Retailer 2
-
€2,692 EUR
$3,008 USD
View
Final sale: no returns
A
Retailer 3
-
€2,784 EUR
$3,110 USD
View
B+
Retailer 4
-
€3,245 EUR
View
B+
Retailer 5
-
€3,266 EUR
$3,649 USD
View
B+
Retailer 6
-
€3,382 EUR
£2,975 GBP
View
B
Retailer 7
-
€4,905 EUR
£4,315 GBP
View
Most Expensive
B
NZ Jewellers
5cd2d617-eb4b-4060-a75c-fd6f281c4b34 · Oct 30
€5,082 EUR
$5,678 USD
View
7 more retailers have this diamond
Prices start from €2,465 EURSave up to €2,618 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
€2,465 EUR