Round|Natural|IGI

1.09ct I IF Round Natural Diamond

EX • I/IF • IGI 803629118

Shape and cutting style on the report: Round brilliant

Certificate IGI 803629118

Diamond specifications and retailer prices

From €2,148 EUR
$2,400 USD
As of October 31, 2026
Save €2,161 EUR (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €5,115 EUR at NZ Jewellers · As of September 28, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 803629118. Listed at 17 retailers as of October 29, 2026, with a 101% 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 803629118
Dimensions6.53 × 6.56 × 4.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.53 mm6.56 mm1.09 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629118
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 63.0%

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: €5,115 EUR|Low: €2,148 EUR|High: €5,115 EUR|Avg: €2,946 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5€2,148 EUR
Retailer 3€2,352 EUR
Retailer 4€2,408 EUR
Retailer 12€2,446 EUR
Retailer 7€2,526 EUR
Retailer 8€2,594 EUR
Retailer 2€2,808 EUR
Retailer 11€2,866 EUR
Retailer 6€2,948 EUR
Retailer 9€3,451 EUR
Retailer 10€4,309 EUR
NZ Jewellers€5,115 EUR

42 data points across 12 retailers

17 retailers€2,148 EUR to €4,309 EUR

A
Cheapest Retailer
-
€2,148 EUR
$2,400 USD
A
Retailer 2
-
€2,352 EUR
$2,628 USD
View
A
Retailer 3
-
€2,408 EUR
$2,690 USD
View
Retailer 4
-
€2,446 EUR
$2,733 USD
View
Price last confirmed 30 days ago
Retailer 5
-
€2,446 EUR
$2,733 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
€2,526 EUR
$2,822 USD
View
Retailer 7
-
€2,540 EUR
$2,838 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
€2,573 EUR
$2,875 USD
View
A
Retailer 9
-
€2,594 EUR
£2,282 GBP
View
A
Retailer 10
-
€2,808 EUR
£2,470 GBP
View
Retailer 11
-
€2,823 EUR
$3,154 USD
View
Price last confirmed 33 days ago
A
Retailer 12
-
€2,866 EUR
View
A
Retailer 13
-
€2,948 EUR
ZAR 53,207 ZAR
View
A
Retailer 14
-
€3,451 EUR
£3,036 GBP
View
B+
Retailer 15
-
€4,309 EUR
£3,791 GBP
View
Retailer 16
-
€5,115 EUR
$5,714 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
c267e8ba-927e-4014-893b-e67ef534324c · Sep 28
€5,115 EUR
$5,714 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from €2,148 EURSave up to €2,161 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
€2,148 EUR