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Round|Natural|GIA

5.17ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6555671558

Certificate GIA 6555671558

Diamond specifications and retailer prices

From $119,027 USD
HK$929,900 HKD
As of October 29, 2026
Save $107,145 USD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $226,172 USD at MOH London · As of October 29, 2026
View at MOH London

About this 5.17ct natural round diamond

This 5.17ct 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 6555671558. Listed at 19 retailers as of October 29, 2026, with prices from $119,027 to $226,172, a $107,145 spread on the same certified stone. MOH London lists it at $226,172. 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

5.17
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555671558
Dimensions10.96 × 11.03 × 6.87 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Feather, Needle, Indented Natural
Top View
10.96 mm11.03 mm5.17 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555671558
Side View
Table 57.0%Crown 36.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $226,172 USD|Low: $119,027 USD|High: $231,968 USD|Avg: $157,302 USD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 13$119,027 USD
Retailer 12$132,508 USD
Retailer 7$135,284 USD
Retailer 15$143,848 USD
Retailer 5$146,761 USD
Retailer 8$149,637 USD
Retailer 3$152,498 USD
Retailer 10$154,672 USD
Retailer 4$155,220 USD
Retailer 14$155,220 USD
Retailer 11$157,006 USD
Retailer 9$160,390 USD
Retailer 2$175,235 USD
Retailer 6$175,641 USD
MOH London$226,172 USD

26 data points across 15 retailers

19 retailers$119,027 USD to $226,172 USD

A
Cheapest Retailer
-
$119,027 USD
HK$929,900 HKD
B+
Retailer 2
-
$132,508 USD
View
B+
Retailer 3
-
$143,848 USD
View
B+
Retailer 4
-
$149,637 USD
View
B+
Retailer 5
-
$152,498 USD
View
Retailer 6
-
$152,876 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$152,876 USD
View
Price last confirmed 40 days ago
Retailer 8
-
$152,876 USD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$154,672 USD
View
B
Retailer 10
-
$155,220 USD
View
B
Retailer 11
-
$155,220 USD
View
Retailer 12
-
$157,006 USD
View
Price last confirmed 8 days ago
Retailer 13
-
$158,991 USD
View
Price last confirmed 39 days ago
Retailer 14
-
$158,991 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$160,390 USD
View
Retailer 16
-
$165,106 USD
View
Price last confirmed 39 days ago
Retailer 17
-
$165,106 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
$175,235 USD
€166,890 EUR
View
Most Expensive
B
MOH London
310664777 · Oct 29
$226,172 USD
£178,088 GBP
View
18 more retailers have this diamond
Prices start from $119,027 USDSave up to $107,145 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.

A
5.17ct Round
$119,027 USD