Round|Natural|GIA

1.09ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5232955463

Certificate GIA 5232955463

Diamond specifications and retailer prices

From €1,913 EUR
HK$16,700 HKD
As of November 1, 2026
Save €2,496 EUR (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €5,405 EUR at NZ Jewellers · As of September 27, 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 5232955463. Listed at 23 retailers as of November 1, 2026, with a 130% 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
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5232955463
Dimensions6.49 × 6.54 × 4.09 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.49 mm6.54 mm1.09 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232955463
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: Nov 1
Current: €2,675 EUR|Low: €1,856 EUR|High: €4,410 EUR|Avg: €2,689 EUR|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 16€1,913 EUR
Retailer 9€1,965 EUR
Retailer 18€2,060 EUR
Retailer 12€2,101 EUR
Retailer 15€2,119 EUR
Retailer 5€2,143 EUR
Retailer 11€2,256 EUR
Retailer 4€2,296 EUR
Retailer 13€2,300 EUR
Retailer 19€2,614 EUR
Retailer 6€2,658 EUR
Retailer 1€2,675 EUR
Retailer 7€2,748 EUR
Retailer 10€2,897 EUR
Retailer 14€2,941 EUR
Retailer 8€2,987 EUR
Retailer 17€3,082 EUR
Retailer 3€3,150 EUR
Retailer 2€4,410 EUR

25 data points across 19 retailers

23 retailers€1,913 EUR to €4,410 EUR

A
Cheapest Retailer
-
€1,913 EUR
HK$16,700 HKD
Retailer 2
-
€1,965 EUR
₹209,044 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
€2,060 EUR
$2,301 USD
View
A
Retailer 4
-
€2,101 EUR
$2,347 USD
View
A
Retailer 5
-
€2,119 EUR
A$3,642 AUD
View
A
Retailer 6
-
€2,143 EUR
$2,394 USD
View
Final sale: no returns
Retailer 7
-
€2,256 EUR
$2,520 USD
View
Price last confirmed 25 days ago
A
Retailer 8
-
€2,296 EUR
$2,565 USD
View
A
Retailer 9
-
€2,300 EUR
$2,570 USD
View
Retailer 10
-
€2,471 EUR
$2,761 USD
View
Price last confirmed 17 days ago
Retailer 11
-
€2,566 EUR
$2,867 USD
View
Price last confirmed 17 days ago
Retailer 12
-
€2,586 EUR
$2,889 USD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
€2,614 EUR
$2,920 USD
View
B+
Retailer 14
-
€2,658 EUR
$2,970 USD
View
B+
Retailer 15
-
€2,675 EUR
£2,353 GBP
View
B+
Retailer 16
-
€2,748 EUR
$3,070 USD
View
Retailer 17
-
€2,852 EUR
$3,186 USD
View
Price last confirmed 17 days ago
Retailer 18
-
€2,897 EUR
A$4,979 AUD
View
Price last confirmed 25 days ago
B+
Retailer 19
-
€2,941 EUR
View
B+
Retailer 20
-
€3,082 EUR
$3,443 USD
View
B
Retailer 21
-
€3,150 EUR
ZAR 56,855 ZAR
View
B
Retailer 22
-
€4,410 EUR
£3,879 GBP
View
Most Expensive
NZ Jewellers
bb9facab-32af-413a-b923-8c3a57015e15 · Sep 27
€5,405 EUR
$6,039 USD
View
Price last confirmed 35 days ago
22 more retailers have this diamond
Prices start from €1,913 EURSave up to €2,496 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
€1,913 EUR