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Round|Natural|GIA

3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1242005486

Certificate GIA 1242005486

Diamond specifications and retailer prices

From $32,412 USD
CA$45,017 CAD
As of October 30, 2026
Save $21,018 USD (39%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $53,430 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 GIA 1242005486. Listed at 19 retailers as of October 29, 2026, with prices from $32,412 to $53,430, a $21,018 spread on the same certified stone. MOH London lists it at $53,430. 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
OriginNatural
Grading LabGIA
CertificateGIA 1242005486
Dimensions9.63 × 9.57 × 6.01 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.63 mm9.57 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242005486
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.6%

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: $53,430 USD|Low: $28,330 USD|High: $53,430 USD|Avg: $36,190 USD|+0.4%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 7$28,330 USD
Retailer 11$29,493 USD
Retailer 16$32,412 USD
Retailer 3$32,615 USD
Retailer 13$34,096 USD
Retailer 12$34,351 USD
Retailer 4$34,644 USD
Retailer 8$35,287 USD
Retailer 6$35,447 USD
Retailer 5$35,870 USD
Retailer 17$35,870 USD
Retailer 14$36,036 USD
Retailer 10$36,644 USD
Retailer 19$37,060 USD
Retailer 15$38,808 USD
Retailer 2$40,466 USD
Retailer 9$40,480 USD
Retailer 18$40,554 USD
MOH London$53,430 USD

12 data points across 19 retailers

19 retailers$32,412 USD to $53,430 USD

Retailer 1
-
$28,330 USD
Price last confirmed 16 days ago
Retailer 2
-
$29,493 USD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$32,412 USD
CA$45,017 CAD
View
B+
Retailer 4
-
$32,615 USD
View
B+
Retailer 5
-
$34,096 USD
View
B+
Retailer 6
-
$34,351 USD
£27,048 GBP
View
B+
Retailer 7
-
$34,644 USD
View
Retailer 8
-
$35,287 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
$35,447 USD
View
B+
Retailer 10
-
$35,870 USD
View
B+
Retailer 11
-
$35,870 USD
View
B+
Retailer 12
-
$36,036 USD
View
Retailer 13
-
$36,644 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$37,060 USD
View
B+
Retailer 15
-
$38,808 USD
View
B
Retailer 16
-
$40,466 USD
€38,539 EUR
View
Retailer 17
-
$40,480 USD
£31,874 GBP
View
Price last confirmed 16 days ago
B
Retailer 18
-
$40,554 USD
View
Most Expensive
B
MOH London
D6DEA1204 · Oct 29
$53,430 USD
£42,071 GBP
View
18 more retailers have this diamond
Prices start from $32,412 USDSave up to $21,018 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+
3.50ct Round
$32,412 USD