Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555246897

Certificate GIA 1555246897

Diamond specifications and retailer prices

From $2,754 CAD
HK$15,400 HKD
As of October 31, 2026
Save $3,603 CAD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,809 CAD 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 1555246897. Listed at 21 retailers as of October 25, 2026, with a 131% 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
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1555246897
Dimensions6.30 × 6.35 × 4.01 mm
L/W Ratio1.01
Top View
6.30 mm6.35 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555246897
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

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: $2,754 CAD|Low: $2,688 CAD|High: $6,729 CAD|Avg: $3,878 CAD|-1.9%
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
October 31, 2026
Retailer 1$2,754 CAD
Retailer 7$2,966 CAD
Retailer 13$2,966 CAD
Retailer 4$3,030 CAD
Retailer 5$3,033 CAD
Retailer 17$3,276 CAD
Retailer 3$3,325 CAD
Retailer 9$3,383 CAD
Retailer 6$3,772 CAD
Retailer 15$3,772 CAD
Retailer 11$3,850 CAD
Retailer 16$3,897 CAD
Retailer 8$4,185 CAD
Retailer 12$4,251 CAD
Retailer 14$4,432 CAD
Retailer 10$4,454 CAD
Retailer 2$6,356 CAD

34 data points across 17 retailers

21 retailers$2,754 CAD to $6,356 CAD

A
Cheapest Retailer
-
$2,754 CAD
HK$15,400 HKD
A
Retailer 2
-
$2,966 CAD
$2,123 USD
View
A
Retailer 3
-
$2,966 CAD
$2,123 USD
View
A
Retailer 4
-
$3,030 CAD
$2,169 USD
View
Final sale: no returns
A
Retailer 5
-
$3,033 CAD
$2,171 USD
View
A
Retailer 6
-
$3,061 CAD
A$3,372 AUD
View
B+
Retailer 7
-
$3,276 CAD
$2,345 USD
View
B+
Retailer 8
-
$3,325 CAD
$2,380 USD
View
Retailer 9
-
$3,383 CAD
$2,422 USD
View
Price last confirmed 23 days ago
Retailer 10
-
$3,540 CAD
$2,534 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
$3,772 CAD
$2,700 USD
View
B+
Retailer 12
-
$3,772 CAD
$2,700 USD
View
B+
Retailer 13
-
$3,850 CAD
£2,170 GBP
View
B+
Retailer 14
-
$3,897 CAD
$2,790 USD
View
Retailer 15
-
$3,904 CAD
$2,795 USD
View
Price last confirmed 31 days ago
Retailer 16
-
$4,185 CAD
A$4,609 AUD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$4,251 CAD
€2,898 EUR
View
B+
Retailer 18
-
$4,432 CAD
$3,173 USD
View
B
Retailer 19
-
$4,454 CAD
ZAR 51,511 ZAR
View
B
Retailer 20
-
$6,356 CAD
£3,583 GBP
View
Most Expensive
NZ Jewellers
593a8d85-e95d-4e46-bc6d-94eacbe213fd · Sep 27
$7,809 CAD
$5,590 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $2,754 CADSave up to $3,603 CAD

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
$2,754 CAD