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Round|Natural|GIA

1.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7456894817

Certificate GIA 7456894817

Diamond specifications and retailer prices

From €2,927 EUR
$3,270 USD
As of October 31, 2026
Save €3,170 EUR (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €6,097 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7456894817. Listed at 14 retailers as of October 30, 2026, with prices from €2,927 to €6,097, a €3,170 spread on the same certified stone. NZ Jewellers lists it at €6,097. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7456894817
Dimensions6.56 × 6.54 × 4.11 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
6.56 mm6.54 mm1.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7456894817
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €6,097 EUR|Low: €2,439 EUR|High: €6,097 EUR|Avg: €3,922 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7€2,882 EUR
Retailer 9€2,927 EUR
Retailer 8€2,981 EUR
Retailer 3€3,170 EUR
Retailer 11€3,292 EUR
Retailer 4€3,558 EUR
Retailer 10€3,753 EUR
Retailer 6€3,961 EUR
Retailer 5€4,302 EUR
Retailer 2€5,853 EUR
NZ Jewellers€6,097 EUR

43 data points across 11 retailers

14 retailers€2,927 EUR to €6,097 EUR

Retailer 1
-
€2,882 EUR
$3,220 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
€2,927 EUR
$3,270 USD
View
Final sale: no returns
B+
Retailer 3
-
€2,981 EUR
$3,330 USD
View
B+
Retailer 4
-
€3,170 EUR
$3,542 USD
View
B+
Retailer 5
-
€3,170 EUR
$3,542 USD
View
B+
Retailer 6
-
€3,292 EUR
$3,678 USD
View
B+
Retailer 7
-
€3,558 EUR
£3,130 GBP
View
B
Retailer 8
-
€3,658 EUR
$4,087 USD
View
Retailer 9
-
€3,753 EUR
A$6,450 AUD
View
Price last confirmed 28 days ago
B
Retailer 10
-
€3,961 EUR
View
Retailer 11
-
€3,963 EUR
$4,427 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
€4,302 EUR
ZAR 77,643 ZAR
View
B
Retailer 13
-
€5,853 EUR
£5,149 GBP
View
Most Expensive
B
NZ Jewellers
d6b07ee9-9449-4e9f-b683-fff6d72c0779 · Oct 30
€6,097 EUR
$6,812 USD
View
13 more retailers have this diamond
Prices start from €2,927 EURSave up to €3,170 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.

B+
1.09ct Round
€2,927 EUR