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3.50ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 591353387

Shape and cutting style on the report: Round brilliant

Certificate IGI 591353387

Diamond specifications and retailer prices

From $23,125 SGD
₹1,722,742 INR
As of October 24, 2026
Save $17,270 SGD (43%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $40,394 SGD 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 591353387. Listed at 12 retailers as of October 24, 2026, with prices from $23,125 to $40,394, a $17,270 spread on the same certified stone. MOH London lists it at $40,394. 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
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 591353387
Dimensions9.60 × 9.66 × 6.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.60 mm9.66 mm3.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 591353387
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
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 24
Current: $40,394 SGD|Low: $23,048 SGD|High: $40,664 SGD|Avg: $30,058 SGD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$23,125 SGD
Retailer 3$26,106 SGD
Retailer 9$27,038 SGD
Retailer 5$27,215 SGD
Retailer 10$28,397 SGD
Retailer 6$29,817 SGD
Retailer 7$30,763 SGD
Retailer 2$31,298 SGD
Retailer 8$31,947 SGD
Retailer 11$36,446 SGD
MOH London$40,394 SGD

42 data points across 11 retailers

12 retailers$23,125 SGD to $40,394 SGD

A
Cheapest Retailer
-
$23,125 SGD
₹1,722,742 INR
A
Retailer 2
-
$26,106 SGD
$20,421 USD
View
A
Retailer 3
-
$27,038 SGD
A$32,538 AUD
View
A
Retailer 4
-
$27,215 SGD
$21,288 USD
View
Final sale: no returns
A
Retailer 5
-
$28,397 SGD
$22,213 USD
View
Retailer 6
-
$29,480 SGD
$23,060 USD
View
Price last confirmed 74 days ago
A
Retailer 7
-
$29,817 SGD
$23,324 USD
View
A
Retailer 8
-
$30,763 SGD
$24,064 USD
View
A
Retailer 9
-
$31,298 SGD
€23,316 EUR
View
B+
Retailer 10
-
$31,947 SGD
$24,990 USD
View
B+
Retailer 11
-
$36,446 SGD
$28,509 USD
View
Most Expensive
B+
MOH London
04DD6A172 · Oct 29
$40,394 SGD
£24,880 GBP
View
11 more retailers have this diamond
Prices start from $23,125 SGDSave up to $17,270 SGD

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
$23,125 SGD