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Round|Natural|GIA

5.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5202226957

Certificate GIA 5202226957

Diamond specifications and retailer prices

From $206,745 CAD
£116,537 GBP
As of October 30, 2026
Save $126,295 CAD (38%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $333,040 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 5.5ct natural round diamond

This 5.5ct natural round sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5202226957. Listed at 11 retailers as of October 29, 2026, with prices from $206,745 to $333,040, a $126,295 spread on the same certified stone. MOH London lists it at $333,040. 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

5.50
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5202226957
Dimensions11.42 × 11.39 × 6.92 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
11.42 mm11.39 mm5.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5202226957
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.7%

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: Oct 30
Current: $333,040 CAD|Low: $195,108 CAD|High: $335,257 CAD|Avg: $232,019 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$197,574 CAD
Retailer 6$202,767 CAD
Retailer 2$206,745 CAD
Retailer 7$210,717 CAD
Retailer 10$220,948 CAD
Retailer 5$223,937 CAD
Retailer 9$226,563 CAD
Retailer 3$250,783 CAD
Retailer 4$255,280 CAD
MOH London$333,040 CAD

43 data points across 10 retailers

11 retailers$206,745 CAD to $333,040 CAD

Retailer 1
-
$197,574 CAD
A$217,596 AUD
Price last confirmed 26 days ago
Retailer 2
-
$202,767 CAD
$145,155 USD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$206,745 CAD
£116,537 GBP
View
B+
Retailer 4
-
$210,717 CAD
$150,846 USD
View
Final sale: no returns
B+
Retailer 5
-
$220,948 CAD
$158,170 USD
View
B+
Retailer 6
-
$223,937 CAD
$160,310 USD
View
Retailer 7
-
$226,563 CAD
£127,708 GBP
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$236,995 CAD
€161,579 EUR
View
B+
Retailer 9
-
$250,783 CAD
€170,979 EUR
View
B+
Retailer 10
-
$255,280 CAD
ZAR 2,952,303 ZAR
View
Most Expensive
B
MOH London
0EB984E8D · Oct 29
$333,040 CAD
£187,727 GBP
View
10 more retailers have this diamond
Prices start from $206,745 CADSave up to $126,295 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+
5.50ct Round
$206,745 CAD