Round|Natural|GIA

5.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5202226957

Certificate GIA 5202226957

Diamond specifications and retailer prices

From $148,003 USD
£116,537 GBP
As of October 30, 2026
Save $90,411 USD (38%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $238,413 USD 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 $148,003 to $238,413, a $90,411 spread on the same certified stone. MOH London lists it at $238,413. 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: $238,413 USD|Low: $139,672 USD|High: $240,001 USD|Avg: $166,096 USD|-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$141,438 USD
Retailer 6$145,155 USD
Retailer 2$148,003 USD
Retailer 7$150,846 USD
Retailer 10$158,170 USD
Retailer 5$160,310 USD
Retailer 9$162,190 USD
Retailer 3$179,528 USD
Retailer 4$182,748 USD
MOH London$238,413 USD

43 data points across 10 retailers

11 retailers$148,003 USD to $238,413 USD

Retailer 1
-
$141,438 USD
A$217,596 AUD
Price last confirmed 26 days ago
Retailer 2
-
$145,155 USD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$148,003 USD
£116,537 GBP
View
B+
Retailer 4
-
$150,846 USD
View
Final sale: no returns
B+
Retailer 5
-
$158,170 USD
View
B+
Retailer 6
-
$160,310 USD
View
Retailer 7
-
$162,190 USD
£127,708 GBP
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$169,658 USD
€161,579 EUR
View
B+
Retailer 9
-
$179,528 USD
€170,979 EUR
View
B+
Retailer 10
-
$182,748 USD
ZAR 2,952,303 ZAR
View
Most Expensive
B
MOH London
0EB984E8D · Oct 29
$238,413 USD
£187,727 GBP
View
10 more retailers have this diamond
Prices start from $148,003 USDSave up to $90,411 USD

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
$148,003 USD