Round|Natural|GIA

9.17ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5182347947

Certificate GIA 5182347947

Diamond specifications and retailer prices

From $357,257 USD
£281,305 GBP
As of October 31, 2026
Save $121,635 USD (25%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $619,148 USD at MOH London · As of November 1, 2026
View at MOH London

About this 9.17ct natural round diamond

This 9.17ct natural round sits in the over five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5182347947. Listed at 13 retailers as of October 31, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

9.17
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5182347947
Dimensions13.50 × 13.54 × 8.20 mm
L/W Ratio1.00
Top View
13.50 mm13.54 mm9.17 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182347947
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $619,148 USD|Low: $347,409 USD|High: $626,608 USD|Avg: $433,000 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 11$347,409 USD
Retailer 5$357,257 USD
Retailer 7$388,886 USD
Retailer 10$396,441 USD
Retailer 6$412,959 USD
Retailer 9$412,959 USD
Retailer 4$424,304 USD
Retailer 12$429,478 USD
Retailer 8$445,996 USD
Retailer 3$465,451 USD
Retailer 2$478,891 USD
MOH London$619,148 USD

31 data points across 12 retailers

13 retailers$357,257 USD to $478,891 USD

B+
Cheapest Retailer
-
$357,257 USD
£281,305 GBP
B
Retailer 2
-
$388,886 USD
View
B
Retailer 3
-
$396,160 USD
View
B
Retailer 4
-
$396,160 USD
View
Retailer 5
-
$396,441 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
$409,370 USD
View
B
Retailer 7
-
$412,959 USD
View
B
Retailer 8
-
$412,959 USD
View
B
Retailer 9
-
$424,304 USD
View
B
Retailer 10
-
$429,478 USD
View
B
Retailer 11
-
$445,996 USD
View
B
Retailer 12
-
$478,891 USD
€456,087 EUR
View
Most Expensive
MOH London
00E3286A3 · Nov 1
$619,148 USD
£487,518 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $357,257 USDSave up to $121,635 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+
9.17ct Round
$357,257 USD