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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5556597374

Certificate GIA 5556597374

Diamond specifications and retailer prices

From $1,054 CAD
As of November 6, 2026
Save $1,465 CAD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,350 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556597374. Listed at 20 retailers as of November 2, 2026, with a 139% 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5556597374
Dimensions5.22 × 5.19 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.22 mm5.19 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556597374
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.2%

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: Nov 6
Current: $4,350 CAD|Low: $1,039 CAD|High: $4,350 CAD|Avg: $1,730 CAD|+3.5%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 3$1,054 CAD
Retailer 2$1,059 CAD
Retailer 15$1,268 CAD
Retailer 17$1,285 CAD
Retailer 7$1,387 CAD
Retailer 10$1,387 CAD
Retailer 8$1,441 CAD
Retailer 6$1,497 CAD
Retailer 16$1,536 CAD
Retailer 13$1,585 CAD
Retailer 11$1,587 CAD
Retailer 9$1,601 CAD
Retailer 18$1,775 CAD
Retailer 4$1,790 CAD
Retailer 14$1,837 CAD
Retailer 12$2,123 CAD
Retailer 5$2,519 CAD
NZ Jewellers$4,350 CAD

27 data points across 18 retailers

20 retailers$1,054 CAD to $2,519 CAD

A
Cheapest Retailer
-
$1,054 CAD
A
Retailer 2
-
$1,059 CAD
View
B+
Retailer 3
-
$1,268 CAD
View
Final sale: no returns
A
Retailer 4
-
$1,285 CAD
View
Retailer 5
-
$1,387 CAD
View
Price last confirmed 8 days ago
Retailer 6
-
$1,387 CAD
View
Price last confirmed 9 days ago
Retailer 7
-
$1,441 CAD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$1,497 CAD
View
B+
Retailer 9
-
$1,536 CAD
View
B+
Retailer 10
-
$1,585 CAD
View
B+
Retailer 11
-
$1,587 CAD
View
Retailer 12
-
$1,601 CAD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$1,775 CAD
View
B+
Retailer 14
-
$1,790 CAD
View
B+
Retailer 15
-
$1,804 CAD
View
Retailer 16
-
$1,828 CAD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
$1,837 CAD
View
B
Retailer 18
-
$2,123 CAD
View
B
Retailer 19
-
$2,519 CAD
View
Most Expensive
NZ Jewellers
043d5255-ff83-40b6-b042-a81e81d9236f · Oct 30
$4,350 CAD
$3,115 USD
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from $1,054 CADSave up to $1,465 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
$1,054 CAD