Round|Natural|IGI

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 HK$1,119 HKD
₹13,580 INR
As of November 1, 2026
Save HK$6,327 HKD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$7,446 HKD 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 HK$1,119 to HK$7,446, a HK$6,327 spread on the same certified stone. NZ Jewellers lists it at HK$7,446. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$1,119 HKD|Low: HK$1,119 HKD|High: HK$3,846 HKD|Avg: HK$2,409 HKD|-4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 1HK$1,119 HKD
Retailer 8HK$1,667 HKD
Retailer 4HK$1,773 HKD
Retailer 9HK$2,118 HKD
Retailer 6HK$2,543 HKD
Retailer 3HK$2,559 HKD
Retailer 7HK$3,280 HKD
Retailer 5HK$3,353 HKD
Retailer 2HK$3,796 HKD

42 data points across 9 retailers

24 retailersHK$1,119 HKD to HK$7,446 HKD

A
Cheapest Retailer
-
HK$1,119 HKD
₹13,580 INR
Retailer 2
-
HK$1,648 HKD
$210 USD
View
Price last confirmed 57 days ago
Retailer 3
-
HK$1,648 HKD
$210 USD
View
Price last confirmed 45 days ago
Retailer 4
-
HK$1,648 HKD
$210 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
HK$1,648 HKD
$210 USD
View
A
Retailer 6
-
HK$1,648 HKD
$210 USD
View
Retailer 7
-
HK$1,765 HKD
$225 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
HK$1,773 HKD
$226 USD
View
Retailer 9
-
HK$1,836 HKD
$234 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
HK$1,836 HKD
$234 USD
View
Retailer 11
-
HK$2,118 HKD
$270 USD
View
Price last confirmed 15 days ago
Retailer 12
-
HK$2,212 HKD
$282 USD
View
Price last confirmed 55 days ago
Retailer 13
-
HK$2,212 HKD
$282 USD
View
Price last confirmed 44 days ago
Retailer 14
-
HK$2,212 HKD
$282 USD
View
Price last confirmed 9 days ago
A
Retailer 15
-
HK$2,212 HKD
$282 USD
View
Retailer 16
-
HK$2,543 HKD
ZAR 5,237 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 17
-
HK$2,559 HKD
£257 GBP
View
B+
Retailer 18
-
HK$2,664 HKD
$340 USD
View
B+
Retailer 19
-
HK$3,280 HKD
$418 USD
View
B+
Retailer 20
-
HK$3,353 HKD
€407 EUR
View
B+
Retailer 21
-
HK$3,796 HKD
£381 GBP
View
Retailer 22
-
HK$7,446 HKD
$949 USD
View
Price last confirmed 57 days ago
Retailer 23
-
HK$7,446 HKD
$949 USD
View
Price last confirmed 44 days ago
Most Expensive
B
NZ Jewellers
f994a225-7a28-4c6d-aed1-513066c0ab63 · Oct 26
HK$7,446 HKD
$949 USD
View
23 more retailers have this diamond
Prices start from HK$1,119 HKDSave up to HK$6,327 HKD

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
HK$1,119 HKD