Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6445352304

Certificate GIA 6445352304

Diamond specifications and retailer prices

From $2,344 USD
As of October 30, 2026
Save $2,746 USD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,274 USD 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: $2,922 USD|Low: $2,183 USD|High: $5,124 USD|Avg: $3,323 USD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$2,456 USD
Retailer 7$2,520 USD
Retailer 10$2,531 USD
Retailer 1$2,922 USD
Retailer 5$3,110 USD
Retailer 3$3,218 USD
Retailer 2$3,234 USD
Retailer 4$3,342 USD
Retailer 8$3,686 USD
Retailer 6$5,090 USD

35 data points across 10 retailers

25 retailers$2,344 USD to $5,090 USD

A
Cheapest Retailer
-
$2,344 USD
Retailer 2
-
$2,367 USD
View
Price last confirmed 75 days ago
B+
Retailer 3
-
$2,406 USD
View
B+
Retailer 4
-
$2,456 USD
View
B+
Retailer 5
-
$2,520 USD
View
B+
Retailer 6
-
$2,531 USD
View
Final sale: no returns
B+
Retailer 7
-
$2,541 USD
A$3,910 AUD
View
B+
Retailer 8
-
$2,695 USD
View
Retailer 9
-
$2,743 USD
View
Price last confirmed 19 days ago
Retailer 10
-
$2,743 USD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$2,777 USD
View
Retailer 12
-
$2,848 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$2,922 USD
£2,301 GBP
View
B
Retailer 14
-
$3,110 USD
View
B
Retailer 15
-
$3,130 USD
View
B
Retailer 16
-
$3,130 USD
View
Retailer 17
-
$3,165 USD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$3,218 USD
£2,534 GBP
View
B
Retailer 19
-
$3,230 USD
View
Retailer 20
-
$3,234 USD
A$4,976 AUD
View
Price last confirmed 23 days ago
B
Retailer 21
-
$3,342 USD
€3,183 EUR
View
Retailer 22
-
$3,515 USD
View
Price last confirmed 15 days ago
B
Retailer 23
-
$3,686 USD
ZAR 59,554 ZAR
View
B
Retailer 24
-
$5,090 USD
£4,008 GBP
View
Most Expensive
NZ Jewellers
5b7c1452-920d-407a-a1bd-0f029b656fa7 · Sep 27
$5,274 USD
View
Price last confirmed 34 days ago
24 more retailers have this diamond
Prices start from $2,344 USDSave up to $2,746 USD

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
$2,344 USD