Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2556600262

Certificate GIA 2556600262

Diamond specifications and retailer prices

From €2,147 EUR
$2,399 USD
As of October 30, 2026
Save €411 EUR (16%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €2,559 EUR at GemTrove · As of October 29, 2026
View at GemTrove

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 2556600262. Listed at 6 retailers as of October 29, 2026, with prices from €2,147 to €2,559, a €411 spread on the same certified stone. GemTrove lists it at €2,559. 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
FluorescenceStrong
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556600262
Dimensions6.58 × 6.53 × 4.10 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Natural
Top View
6.58 mm6.53 mm1.09 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556600262
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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 30
Current: €2,559 EUR|Low: €1,898 EUR|High: €2,663 EUR|Avg: €2,339 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3€2,147 EUR
Retailer 4€2,174 EUR
Retailer 6€2,203 EUR
Retailer 2€2,315 EUR
Retailer 5€2,481 EUR
GemTrove€2,559 EUR

39 data points across 6 retailers

6 retailers€2,147 EUR to €2,559 EUR

A
Cheapest Retailer
-
€2,147 EUR
$2,399 USD
A
Retailer 2
-
€2,174 EUR
$2,429 USD
View
Final sale: no returns
A
Retailer 3
-
€2,203 EUR
MYR 10,024 MYR
View
A
Retailer 4
-
€2,315 EUR
£2,036 GBP
View
A
Retailer 5
-
€2,481 EUR
SGD 3,746 SGD
View
Most Expensive
A
GemTrove
GT-N-01363343-98 · Oct 29
€2,559 EUR
A$4,398 AUD
View
5 more retailers have this diamond
Prices start from €2,147 EURSave up to €411 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
€2,147 EUR