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0.31ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 146452203

Shape and cutting style on the report: Round brilliant

Certificate IGI 146452203

Diamond specifications and retailer prices

From $182 SGD
₹13,580 INR
As of November 1, 2026
Save $1,031 SGD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,213 SGD at NZ Jewellers · As of October 26, 2026
View at NZ Jewellers

About this 0.31ct natural round diamond

This 0.31ct natural round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 146452203. Listed at 24 retailers as of October 26, 2026, with prices from $182 to $1,213, a $1,031 spread on the same certified stone. NZ Jewellers lists it at $1,213. 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

0.31
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.3°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 146452203
Dimensions4.39 × 4.46 × 2.65 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
4.39 mm4.46 mm0.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 146452203
Side View
Table 61.5%Crown 34.3°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.1%

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: Nov 1
Current: $182 SGD|Low: $182 SGD|High: $627 SGD|Avg: $391 SGD|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 1$182 SGD
Retailer 8$272 SGD
Retailer 4$289 SGD
Retailer 9$345 SGD
Retailer 6$414 SGD
Retailer 3$417 SGD
Retailer 7$534 SGD
Retailer 5$546 SGD
Retailer 2$619 SGD

43 data points across 9 retailers

24 retailers$182 SGD to $1,213 SGD

A
Cheapest Retailer
-
$182 SGD
₹13,580 INR
Retailer 2
-
$268 SGD
$210 USD
View
Price last confirmed 57 days ago
Retailer 3
-
$268 SGD
$210 USD
View
Price last confirmed 45 days ago
Retailer 4
-
$268 SGD
$210 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$268 SGD
$210 USD
View
A
Retailer 6
-
$268 SGD
$210 USD
View
Retailer 7
-
$288 SGD
$225 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$289 SGD
$226 USD
View
Retailer 9
-
$299 SGD
$234 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$299 SGD
$234 USD
View
Retailer 11
-
$345 SGD
$270 USD
View
Price last confirmed 15 days ago
Retailer 12
-
$361 SGD
$282 USD
View
Price last confirmed 55 days ago
Retailer 13
-
$361 SGD
$282 USD
View
Price last confirmed 43 days ago
Retailer 14
-
$361 SGD
$282 USD
View
Price last confirmed 9 days ago
A
Retailer 15
-
$361 SGD
$282 USD
View
A
Retailer 16
-
$414 SGD
ZAR 5,237 ZAR
View
B+
Retailer 17
-
$417 SGD
£257 GBP
View
B+
Retailer 18
-
$434 SGD
$340 USD
View
B+
Retailer 19
-
$534 SGD
$418 USD
View
B+
Retailer 20
-
$546 SGD
€407 EUR
View
B+
Retailer 21
-
$619 SGD
£381 GBP
View
Retailer 22
-
$1,213 SGD
$949 USD
View
Price last confirmed 56 days ago
Retailer 23
-
$1,213 SGD
$949 USD
View
Price last confirmed 44 days ago
Most Expensive
B
NZ Jewellers
f994a225-7a28-4c6d-aed1-513066c0ab63 · Oct 26
$1,213 SGD
$949 USD
View
23 more retailers have this diamond
Prices start from $182 SGDSave up to $1,031 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
0.31ct Round
$182 SGD