Round|Natural|IGI

1.09ct I I1 Round Natural Diamond

EX • I/I1

Diamond specifications and retailer prices

From €1,511 EUR
$1,695 USD
As of October 29, 2026
Save €2,557 EUR (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,068 EUR at NZ Jewellers · As of October 23, 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 I1 clarity (included), with a top-tier cut grade and certified by IGI. Listed at 10 retailers as of October 31, 2026, with a 169% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
I
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
Dimensions6.67 × 6.72 × 4.02 mm
L/W Ratio1.01
Top View
6.67 mm6.72 mm1.09 ctI / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI
Side View
Table 56.0%CrownGirdle: THN-STKPavilionCulet: CHIDepth 60.1%

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 29
Current: €4,068 EUR|Low: €1,312 EUR|High: €4,068 EUR|Avg: €1,828 EUR|+15.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 6€1,328 EUR
Retailer 7€1,476 EUR
Retailer 2€1,511 EUR
Retailer 4€1,511 EUR
Retailer 3€1,581 EUR
Retailer 5€1,744 EUR
NZ Jewellers€4,068 EUR

8 data points across 7 retailers

10 retailers€1,511 EUR to €4,068 EUR

Retailer 1
-
€1,511 EUR
$1,695 USD
Price last confirmed 11 days ago
B+
Retailer 2
-
€1,511 EUR
$1,695 USD
View
B+
Retailer 3
-
€1,511 EUR
$1,695 USD
View
Retailer 4
-
€1,511 EUR
$1,695 USD
View
Price last confirmed 9 days ago
Retailer 5
-
€1,581 EUR
$1,773 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
€1,581 EUR
$1,773 USD
View
B
Retailer 7
-
€1,744 EUR
$1,956 USD
View
Retailer 8
-
€1,744 EUR
$1,956 USD
View
Price last confirmed 10 days ago
C
Retailer 9
-
€4,068 EUR
$4,563 USD
View
Most Expensive
NZ Jewellers
b76579df-700e-48f5-b2e0-45689a92e3b8 · Oct 23
€4,068 EUR
$4,563 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from €1,511 EURSave up to €2,557 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
€1,511 EUR