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Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2554628290

Certificate GIA 2554628290

Diamond specifications and retailer prices

From $9,116 CAD
As of November 6, 2026
Save $8,384 CAD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $17,499 CAD at NZ Jewellers · As of November 2, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554628290. Listed at 10 retailers as of November 2, 2026, with prices from $9,116 to $17,499, a $8,384 spread on the same certified stone. NZ Jewellers lists it at $17,499. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554628290
Dimensions7.34 × 7.39 × 4.62 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
7.34 mm7.39 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554628290
Side View
Table 58.0%Crown 34.5°Girdle: STK-STKPavilion 41.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $17,499 CAD|Low: $8,331 CAD|High: $17,499 CAD|Avg: $11,064 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
November 6, 2026
Retailer 3$8,331 CAD
Retailer 6$9,116 CAD
Retailer 13$9,131 CAD
Retailer 8$9,664 CAD
Retailer 9$10,463 CAD
Retailer 7$10,490 CAD
Retailer 11$10,624 CAD
Retailer 5$11,393 CAD
Retailer 12$11,713 CAD
Retailer 2$11,776 CAD
Retailer 4$13,268 CAD
Retailer 10$14,731 CAD
NZ Jewellers$17,499 CAD

14 data points across 13 retailers

10 retailers$9,116 CAD to $17,499 CAD

Retailer 1
-
$8,331 CAD
Price last confirmed 19 days ago
B+
Retailer 2
-
$9,116 CAD
View
B+
Retailer 3
-
$9,664 CAD
View
B+
Retailer 4
-
$10,463 CAD
View
B+
Retailer 5
-
$10,490 CAD
View
B
Retailer 6
-
$10,624 CAD
View
B
Retailer 7
-
$11,713 CAD
View
B+
Retailer 8
-
$11,776 CAD
View
B
Retailer 9
-
$14,731 CAD
View
Most Expensive
B
NZ Jewellers
487b5f42-6e04-4b45-8b32-98f9a897b104 · Nov 2
$17,499 CAD
$12,530 USD
View
9 more retailers have this diamond
Prices start from $9,116 CADSave up to $8,384 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.

B+
1.55ct Round
$9,116 CAD