Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2454893009

Certificate GIA 2454893009

Diamond specifications and retailer prices

From $804 CAD
₹54,805 INR
As of October 31, 2026
Save $2,123 CAD (73%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,386 CAD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2454893009. Listed at 23 retailers as of October 31, 2026, with a 264% 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

0.55
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2454893009
Dimensions5.21 × 5.17 × 3.26 mm
L/W Ratio1.01
Star length50%
Top View
5.21 mm5.17 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2454893009
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $1,978 CAD|Low: $689 CAD|High: $2,001 CAD|Avg: $1,329 CAD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$804 CAD
Retailer 11$996 CAD
Retailer 8$1,080 CAD
Retailer 2$1,083 CAD
Retailer 9$1,277 CAD
Retailer 4$1,280 CAD
Retailer 10$1,320 CAD
Retailer 6$1,402 CAD
Retailer 3$1,624 CAD
Retailer 7$1,663 CAD
Retailer 1$1,978 CAD

36 data points across 11 retailers

23 retailers$804 CAD to $2,927 CAD

A
Cheapest Retailer
-
$804 CAD
₹54,805 INR
Retailer 2
-
$964 CAD
$690 USD
View
Price last confirmed 20 days ago
B+
Retailer 3
-
$996 CAD
$713 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,009 CAD
A$1,111 AUD
View
Retailer 5
-
$1,080 CAD
$773 USD
View
Price last confirmed 47 days ago
B+
Retailer 6
-
$1,080 CAD
$773 USD
View
Retailer 7
-
$1,080 CAD
$773 USD
View
Price last confirmed 16 days ago
Retailer 8
-
$1,083 CAD
$775 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$1,097 CAD
$785 USD
View
Retailer 10
-
$1,122 CAD
$803 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$1,122 CAD
$803 USD
View
B+
Retailer 12
-
$1,200 CAD
$859 USD
View
Retailer 13
-
$1,246 CAD
$892 USD
View
Price last confirmed 47 days ago
B+
Retailer 14
-
$1,265 CAD
$906 USD
View
B+
Retailer 15
-
$1,277 CAD
£720 GBP
View
B+
Retailer 16
-
$1,280 CAD
£722 GBP
View
B
Retailer 17
-
$1,320 CAD
$945 USD
View
B+
Retailer 18
-
$1,402 CAD
€956 EUR
View
Retailer 19
-
$1,624 CAD
A$1,788 AUD
View
Price last confirmed 28 days ago
B
Retailer 20
-
$1,663 CAD
ZAR 19,231 ZAR
View
B
Retailer 21
-
$1,978 CAD
£1,115 GBP
View
B
Retailer 22
-
$2,927 CAD
£1,650 GBP
View
Most Expensive
NZ Jewellers
9f00f750-bed9-4676-a1ce-8fb98a8617b8 · Sep 15
$3,386 CAD
$2,424 USD
View
Price last confirmed 46 days ago
22 more retailers have this diamond
Prices start from $804 CADSave up to $2,123 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
0.55ct Round
$804 CAD