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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 €131,376 EUR
£115,570 GBP
As of October 31, 2026
Save €82,026 EUR (38%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €213,401 EUR 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 €131,376 to €213,401, a €82,026 spread on the same certified stone. MOH London lists it at €213,401. 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 31
Current: €213,401 EUR|Low: €125,019 EUR|High: €214,822 EUR|Avg: €148,652 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8€126,599 EUR
Retailer 6€129,927 EUR
Retailer 2€131,376 EUR
Retailer 7€135,021 EUR
Retailer 10€141,576 EUR
Retailer 5€143,492 EUR
Retailer 9€145,174 EUR
Retailer 3€160,694 EUR
Retailer 4€163,576 EUR
MOH London€213,401 EUR

42 data points across 10 retailers

11 retailers€131,376 EUR to €213,401 EUR

Retailer 1
-
€126,599 EUR
A$217,596 AUD
Price last confirmed 28 days ago
Retailer 2
-
€129,927 EUR
$145,155 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
€131,376 EUR
£115,570 GBP
View
B+
Retailer 4
-
€135,021 EUR
$150,846 USD
View
Final sale: no returns
B+
Retailer 5
-
€141,576 EUR
$158,170 USD
View
B+
Retailer 6
-
€143,492 EUR
$160,310 USD
View
Retailer 7
-
€145,174 EUR
£127,708 GBP
View
Price last confirmed 32 days ago
B+
Retailer 8
-
€151,859 EUR
View
B+
Retailer 9
-
€160,694 EUR
View
B+
Retailer 10
-
€163,576 EUR
ZAR 2,952,303 ZAR
View
Most Expensive
B
MOH London
0EB984E8D · Oct 29
€213,401 EUR
£187,727 GBP
View
10 more retailers have this diamond
Prices start from €131,376 EURSave up to €82,026 EUR

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
€131,376 EUR