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3.81ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 610308387

Shape and cutting style on the report: Round brilliant

Certificate IGI 610308387

Diamond specifications and retailer prices

From HK$192,975 HKD
₹2,342,506 INR
As of November 1, 2026
Save HK$67,881 HKD (26%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$328,554 HKD at MOH London · As of October 1, 2026
View at MOH London

About this 3.81ct natural round diamond

This 3.81ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 610308387. Listed at 9 retailers as of November 1, 2026, with a 35% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.81
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 610308387
Dimensions9.91 × 9.80 × 6.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.91 mm9.80 mm3.81 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 610308387
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

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$328,554 HKD|Low: HK$192,578 HKD|High: HK$448,386 HKD|Avg: HK$248,233 HKD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3HK$192,975 HKD
Retailer 9HK$205,832 HKD
Retailer 5HK$218,509 HKD
Retailer 8HK$229,447 HKD
Retailer 6HK$248,567 HKD
Retailer 7HK$258,131 HKD
Retailer 2HK$260,856 HKD
Retailer 4HK$264,465 HKD
MOH LondonHK$328,554 HKD

39 data points across 9 retailers

9 retailersHK$192,975 HKD to HK$260,856 HKD

A
Cheapest Retailer
-
HK$192,975 HKD
₹2,342,506 INR
Retailer 2
-
HK$201,399 HKD
$25,670 USD
View
Price last confirmed 35 days ago
Retailer 3
-
HK$216,533 HKD
$27,599 USD
View
Price last confirmed 35 days ago
Retailer 4
-
HK$240,926 HKD
$30,708 USD
View
Price last confirmed 33 days ago
Retailer 5
-
HK$248,567 HKD
$31,682 USD
View
Price last confirmed 31 days ago
Retailer 6
-
HK$258,131 HKD
$32,901 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
HK$260,856 HKD
€31,665 EUR
View
Retailer 8
-
HK$264,465 HKD
ZAR 544,560 ZAR
View
Price last confirmed 32 days ago
Most Expensive
MOH London
27E1CBE0E · Oct 1
HK$328,554 HKD
£32,974 GBP
View
Price last confirmed 32 days ago
8 more retailers have this diamond
Prices start from HK$192,975 HKDSave up to HK$67,881 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
3.81ct Round
HK$192,975 HKD