Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6445352304

Certificate GIA 6445352304

Diamond specifications and retailer prices

From €2,098 EUR
$2,344 USD
As of October 30, 2026
Save €2,458 EUR (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €4,721 EUR at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 6445352304. Listed at 25 retailers as of October 29, 2026, with a 117% 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

1.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6445352304
Dimensions6.40 × 6.34 × 3.93 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.40 mm6.34 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6445352304
Side View
Table 57.0%Crown 34.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.0%

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 30
Current: €3,331 EUR|Low: €1,954 EUR|High: €4,587 EUR|Avg: €2,967 EUR|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9€2,198 EUR
Retailer 8€2,256 EUR
Retailer 10€2,265 EUR
Retailer 4€2,615 EUR
Retailer 6€2,784 EUR
Retailer 3€2,880 EUR
Retailer 2€2,895 EUR
Retailer 5€2,992 EUR
Retailer 1€3,331 EUR
Retailer 7€4,556 EUR

35 data points across 10 retailers

25 retailers€2,098 EUR to €4,556 EUR

A
Cheapest Retailer
-
€2,098 EUR
$2,344 USD
Retailer 2
-
€2,119 EUR
$2,367 USD
View
Price last confirmed 76 days ago
B+
Retailer 3
-
€2,154 EUR
$2,406 USD
View
B+
Retailer 4
-
€2,198 EUR
$2,456 USD
View
B+
Retailer 5
-
€2,256 EUR
$2,520 USD
View
B+
Retailer 6
-
€2,265 EUR
$2,531 USD
View
Final sale: no returns
B+
Retailer 7
-
€2,275 EUR
A$3,910 AUD
View
B+
Retailer 8
-
€2,412 EUR
$2,695 USD
View
Retailer 9
-
€2,455 EUR
$2,743 USD
View
Price last confirmed 20 days ago
Retailer 10
-
€2,455 EUR
$2,743 USD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
€2,486 EUR
$2,777 USD
View
Retailer 12
-
€2,549 EUR
$2,848 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
€2,615 EUR
£2,301 GBP
View
B
Retailer 14
-
€2,784 EUR
$3,110 USD
View
B
Retailer 15
-
€2,802 EUR
$3,130 USD
View
B
Retailer 16
-
€2,802 EUR
$3,130 USD
View
Retailer 17
-
€2,833 EUR
$3,165 USD
View
Price last confirmed 22 days ago
B
Retailer 18
-
€2,880 EUR
£2,534 GBP
View
B
Retailer 19
-
€2,891 EUR
$3,230 USD
View
Retailer 20
-
€2,895 EUR
A$4,976 AUD
View
Price last confirmed 24 days ago
B
Retailer 21
-
€2,992 EUR
View
Retailer 22
-
€3,146 EUR
$3,515 USD
View
Price last confirmed 17 days ago
B
Retailer 23
-
€3,331 EUR
ZAR 60,116 ZAR
View
B
Retailer 24
-
€4,556 EUR
£4,008 GBP
View
Most Expensive
NZ Jewellers
5b7c1452-920d-407a-a1bd-0f029b656fa7 · Sep 27
€4,721 EUR
$5,274 USD
View
Price last confirmed 35 days ago
24 more retailers have this diamond
Prices start from €2,098 EURSave up to €2,458 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
1.00ct Round
€2,098 EUR