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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557450247

Certificate GIA 2557450247

Diamond specifications and retailer prices

From $735 CAD
$526 USD
As of October 29, 2026
Save $2,554 CAD (78%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,288 CAD at NZ Jewellers · As of October 30, 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 2557450247. Listed at 27 retailers as of October 29, 2026, with prices from $735 to $3,288, a $2,554 spread on the same certified stone. NZ Jewellers lists it at $3,288. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557450247
Dimensions5.19 × 5.23 × 3.29 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
5.19 mm5.23 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557450247
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.1%

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 29
Current: $3,288 CAD|Low: $668 CAD|High: $3,288 CAD|Avg: $1,363 CAD
NZ Jewellers
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
October 31, 2026
Retailer 13$735 CAD
Retailer 5$932 CAD
Retailer 7$950 CAD
Retailer 11$957 CAD
Retailer 15$986 CAD
Retailer 4$1,020 CAD
Retailer 3$1,109 CAD
Retailer 12$1,201 CAD
Retailer 2$1,252 CAD
Retailer 9$1,366 CAD
Retailer 6$1,467 CAD
Retailer 14$1,577 CAD
Retailer 8$1,619 CAD
Retailer 10$1,930 CAD
NZ Jewellers$3,288 CAD

43 data points across 15 retailers

27 retailers$735 CAD to $3,288 CAD

A
Cheapest Retailer
-
$735 CAD
$526 USD
Final sale: no returns
Retailer 2
-
$932 CAD
$667 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$950 CAD
$680 USD
View
Retailer 4
-
$950 CAD
$680 USD
View
Price last confirmed 47 days ago
Retailer 5
-
$957 CAD
$685 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$972 CAD
$696 USD
View
A
Retailer 7
-
$984 CAD
A$1,083 AUD
View
A
Retailer 8
-
$986 CAD
$706 USD
View
B+
Retailer 9
-
$1,020 CAD
$730 USD
View
B+
Retailer 10
-
$1,097 CAD
$785 USD
View
B+
Retailer 11
-
$1,102 CAD
$789 USD
View
B+
Retailer 12
-
$1,109 CAD
$794 USD
View
B+
Retailer 13
-
$1,166 CAD
$835 USD
View
B+
Retailer 14
-
$1,201 CAD
$860 USD
View
B+
Retailer 15
-
$1,201 CAD
$860 USD
View
B+
Retailer 16
-
$1,201 CAD
$860 USD
View
B+
Retailer 17
-
$1,243 CAD
$890 USD
View
B+
Retailer 18
-
$1,252 CAD
£706 GBP
View
B+
Retailer 19
-
$1,260 CAD
$902 USD
View
B+
Retailer 20
-
$1,334 CAD
$955 USD
View
B+
Retailer 21
-
$1,366 CAD
€931 EUR
View
B+
Retailer 22
-
$1,467 CAD
$1,050 USD
View
Retailer 23
-
$1,577 CAD
A$1,737 AUD
View
Price last confirmed 28 days ago
B
Retailer 24
-
$1,619 CAD
ZAR 18,719 ZAR
View
B
Retailer 25
-
$1,930 CAD
£1,088 GBP
View
B
Retailer 26
-
$3,025 CAD
View
Most Expensive
B
NZ Jewellers
9b665b45-e3d4-40e8-97cd-0319aba1d27e · Oct 30
$3,288 CAD
$2,354 USD
View
26 more retailers have this diamond
Prices start from $735 CADSave up to $2,554 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
$735 CAD