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3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 635461965

Shape and cutting style on the report: Round brilliant

Certificate IGI 635461965

Diamond specifications and retailer prices

From $20,613 USD
As of October 29, 2026
Save $16,848 USD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $37,461 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 635461965. Listed at 16 retailers as of October 29, 2026, with prices from $20,613 to $37,461, a $16,848 spread on the same certified stone. MOH London lists it at $37,461. 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

3.50
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 635461965
Dimensions9.60 × 9.51 × 6.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.60 mm9.51 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 635461965
Side View
Table 57.0%Crown 36.4°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $37,461 USD|Low: $19,982 USD|High: $37,710 USD|Avg: $24,798 USD|+2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7$20,613 USD
Retailer 5$20,815 USD
Retailer 8$21,933 USD
Retailer 10$22,078 USD
Retailer 9$22,116 USD
Retailer 6$22,864 USD
Retailer 3$23,341 USD
Retailer 11$25,286 USD
Retailer 12$26,258 USD
Retailer 2$27,909 USD
Retailer 4$29,360 USD
MOH London$37,461 USD

30 data points across 12 retailers

16 retailers$20,613 USD to $37,461 USD

A
Cheapest Retailer
-
$20,613 USD
Retailer 2
-
$20,815 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$21,933 USD
View
A
Retailer 4
-
$22,078 USD
View
A
Retailer 5
-
$22,116 USD
View
A
Retailer 6
-
$22,864 USD
View
Final sale: no returns
Retailer 7
-
$23,859 USD
View
Price last confirmed 18 days ago
Retailer 8
-
$25,051 USD
View
Price last confirmed 30 days ago
Retailer 9
-
$25,286 USD
View
Price last confirmed 40 days ago
Retailer 10
-
$25,847 USD
View
Price last confirmed 22 days ago
Retailer 11
-
$26,258 USD
View
Price last confirmed 40 days ago
Retailer 12
-
$26,841 USD
View
Price last confirmed 20 days ago
A
Retailer 13
-
$27,909 USD
€26,580 EUR
View
Retailer 14
-
$33,066 USD
View
Price last confirmed 40 days ago
Retailer 15
-
$33,800 USD
View
Price last confirmed 26 days ago
Most Expensive
B+
MOH London
126A1AAD9 · Oct 29
$37,461 USD
£29,497 GBP
View
15 more retailers have this diamond
Prices start from $20,613 USDSave up to $16,848 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
3.50ct Round
$20,613 USD