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Round|Natural|GIA

1.09ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2556600262

Certificate GIA 2556600262

Diamond specifications and retailer prices

From $3,358 CAD
$2,399 USD
As of October 28, 2026
Save $643 CAD (16%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,001 CAD 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 28, 2026, with prices from $3,358 to $4,001, a $643 spread on the same certified stone. GemTrove lists it at $4,001. 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
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 28
Current: $4,001 CAD|Low: $2,967 CAD|High: $4,164 CAD|Avg: $3,658 CAD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3$3,358 CAD
Retailer 4$3,400 CAD
Retailer 6$3,444 CAD
Retailer 2$3,620 CAD
Retailer 5$3,880 CAD
GemTrove$4,001 CAD

39 data points across 6 retailers

6 retailers$3,358 CAD to $4,001 CAD

A
Cheapest Retailer
-
$3,358 CAD
$2,399 USD
A
Retailer 2
-
$3,400 CAD
$2,429 USD
View
Final sale: no returns
A
Retailer 3
-
$3,444 CAD
MYR 10,024 MYR
View
A
Retailer 4
-
$3,620 CAD
£2,036 GBP
View
A
Retailer 5
-
$3,880 CAD
SGD 3,746 SGD
View
Most Expensive
A
GemTrove
GT-N-01363343-98 · Oct 29
$4,001 CAD
A$4,398 AUD
View
5 more retailers have this diamond
Prices start from $3,358 CADSave up to $643 CAD

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
$3,358 CAD