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Round|Natural|GIA

4.55ct D SI2 Round Natural Diamond

ID • D/SI2 • GIA 18

Certificate GIA 18

Diamond specifications and retailer prices

From $92,535 CAD
$66,115 USD
As of October 28, 2026
Save $11,566 CAD (11%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $104,101 CAD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 4.55ct natural round diamond

This 4.55ct natural round sits in the three to five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of October 28, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

4.55
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 18
Dimensions10.56 × 10.61 × 6.63 mm
L/W Ratio1.00
Top View
10.56 mm10.61 mm4.55 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 18
Side View
Table 55.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $104,101 CAD|Low: $92,535 CAD|High: $107,846 CAD|Avg: $100,498 CAD|-3.5%
Blue Nile
Retailer 2
October 28, 2026
Retailer 2$92,535 CAD
Blue Nile$104,101 CAD

7 data points across 2 retailers

2 retailers$92,535 CAD to $104,101 CAD

A
Cheapest Retailer
-
$92,535 CAD
$66,115 USD
Most Expensive
A
Blue Nile
28988250 · Oct 29
$104,101 CAD
$74,379 USD
View
1 more retailer has this diamond
Prices start from $92,535 CADSave up to $11,566 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
4.55ct Round
$92,535 CAD