Round|Natural|GIA

1.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7538742548

Certificate GIA 7538742548

Diamond specifications and retailer prices

From €2,131 EUR
$2,381 USD
As of October 30, 2026
Save €3,361 EUR (61%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: €5,492 EUR at NZ Jewellers · As of October 20, 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 7538742548. Listed at 32 retailers as of October 30, 2026, with a 158% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7538742548
Dimensions6.53 × 6.56 × 4.08 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.53 mm6.56 mm1.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7538742548
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: €3,062 EUR|Low: €2,013 EUR|High: €4,446 EUR|Avg: €2,911 EUR|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2€2,131 EUR
Retailer 12€2,197 EUR
Retailer 3€2,345 EUR
Retailer 9€2,380 EUR
Retailer 5€2,528 EUR
Retailer 11€2,699 EUR
Retailer 7€2,792 EUR
Retailer 4€2,943 EUR
Retailer 1€3,062 EUR
Retailer 10€3,064 EUR
Retailer 8€3,229 EUR
Retailer 6€4,394 EUR

37 data points across 12 retailers

32 retailers€2,131 EUR to €5,492 EUR

A
Cheapest Retailer
-
€2,131 EUR
$2,381 USD
A
Retailer 2
-
€2,197 EUR
$2,454 USD
View
Final sale: no returns
B+
Retailer 3
-
€2,345 EUR
$2,620 USD
View
Retailer 4
-
€2,380 EUR
$2,659 USD
View
Price last confirmed 45 days ago
B+
Retailer 5
-
€2,380 EUR
$2,659 USD
View
Retailer 6
-
€2,380 EUR
$2,659 USD
View
Price last confirmed 25 days ago
Retailer 7
-
€2,380 EUR
$2,659 USD
View
Price last confirmed 17 days ago
Retailer 8
-
€2,380 EUR
$2,659 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
€2,414 EUR
$2,696 USD
View
Retailer 10
-
€2,471 EUR
$2,761 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
€2,528 EUR
£2,224 GBP
View
B+
Retailer 12
-
€2,614 EUR
$2,920 USD
View
B+
Retailer 13
-
€2,614 EUR
$2,920 USD
View
B+
Retailer 14
-
€2,699 EUR
$3,015 USD
View
Retailer 15
-
€2,699 EUR
$3,015 USD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
€2,703 EUR
$3,020 USD
View
Retailer 17
-
€2,746 EUR
$3,068 USD
View
Price last confirmed 23 days ago
Retailer 18
-
€2,746 EUR
$3,068 USD
View
Price last confirmed 40 days ago
Retailer 19
-
€2,746 EUR
$3,068 USD
View
Price last confirmed 12 days ago
B+
Retailer 20
-
€2,746 EUR
$3,068 USD
View
B+
Retailer 21
-
€2,792 EUR
£2,456 GBP
View
Retailer 22
-
€2,943 EUR
A$5,059 AUD
View
Price last confirmed 25 days ago
B
Retailer 23
-
€2,983 EUR
$3,332 USD
View
Retailer 24
-
€3,050 EUR
$3,408 USD
View
Price last confirmed 17 days ago
B+
Retailer 25
-
€3,062 EUR
View
B
Retailer 26
-
€3,064 EUR
£2,695 GBP
View
B+
Retailer 27
-
€3,229 EUR
ZAR 58,278 ZAR
View
B
Retailer 28
-
€4,394 EUR
£3,865 GBP
View
B
Retailer 29
-
€5,492 EUR
$6,136 USD
View
Retailer 30
-
€5,492 EUR
$6,136 USD
View
Price last confirmed 34 days ago
Retailer 31
-
€5,492 EUR
$6,136 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
7cb4caa3-458e-4818-8c6c-6a4c63ffcf89 · Oct 20
€5,492 EUR
$6,136 USD
View
Price last confirmed 12 days ago
31 more retailers have this diamond
Prices start from €2,131 EURSave up to €3,361 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
€2,131 EUR