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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3555597052

Certificate GIA 3555597052

Diamond specifications and retailer prices

From $4,649 CAD
HK$26,000 HKD
As of October 30, 2026
Save $6,483 CAD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,132 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555597052. Listed at 9 retailers as of October 30, 2026, with prices from $4,649 to $11,132, a $6,483 spread on the same certified stone. NZ Jewellers lists it at $11,132. 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

1.55
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555597052
Dimensions7.30 × 7.35 × 4.59 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle
Top View
7.30 mm7.35 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555597052
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: $11,132 CAD|Low: $4,649 CAD|High: $12,100 CAD|Avg: $7,429 CAD|-8.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6$4,649 CAD
Retailer 8$5,618 CAD
Retailer 7$5,961 CAD
Retailer 3$6,389 CAD
Retailer 5$6,389 CAD
Retailer 9$6,726 CAD
Retailer 2$7,277 CAD
Retailer 4$10,231 CAD
NZ Jewellers$11,132 CAD

35 data points across 9 retailers

9 retailers$4,649 CAD to $11,132 CAD

A
Cheapest Retailer
-
$4,649 CAD
HK$26,000 HKD
A
Retailer 2
-
$5,618 CAD
$4,022 USD
View
A
Retailer 3
-
$5,961 CAD
SGD 5,767 SGD
View
A
Retailer 4
-
$6,389 CAD
$4,574 USD
View
A
Retailer 5
-
$6,389 CAD
$4,574 USD
View
A
Retailer 6
-
$6,726 CAD
A$7,408 AUD
View
A
Retailer 7
-
$7,277 CAD
€4,961 EUR
View
B+
Retailer 8
-
$10,231 CAD
£5,767 GBP
View
Most Expensive
B+
NZ Jewellers
140a0751-b25e-4aa4-ae07-854da3af5fbc · Oct 30
$11,132 CAD
$7,969 USD
View
8 more retailers have this diamond
Prices start from $4,649 CADSave up to $6,483 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
1.55ct Round
$4,649 CAD