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Marquise|Natural|IGI

0.31ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 839656774

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 839656774

Diamond specifications and retailer prices

From HK$1,922 HKD
$245 USD
As of October 29, 2026
Save HK$2,532 HKD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$4,454 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 839656774. Listed at 8 retailers as of October 29, 2026, with prices from HK$1,922 to HK$4,454, a HK$2,532 spread on the same certified stone. MOH London lists it at HK$4,454. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle30.4°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 839656774
Dimensions7.18 × 3.53 × 2.03 mm
L/W Ratio2.03
Girdle conditionFaceted
Top View
7.18 mm3.53 mm0.31 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 839656774
Side View
Table 65.0%Crown 30.4°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 57.5%

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 29
Current: HK$4,454 HKD|Low: HK$1,922 HKD|High: HK$8,693 HKD|Avg: HK$3,758 HKD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4HK$1,922 HKD
Retailer 8HK$2,142 HKD
Retailer 5HK$2,645 HKD
Retailer 7HK$3,162 HKD
Retailer 2HK$3,402 HKD
Retailer 3HK$3,897 HKD
MOH LondonHK$4,454 HKD
Retailer 6HK$8,693 HKD

13 data points across 8 retailers

8 retailersHK$1,922 HKD to HK$4,454 HKD

B+
Cheapest Retailer
-
HK$1,922 HKD
$245 USD
B+
Retailer 2
-
HK$2,142 HKD
$273 USD
View
B
Retailer 3
-
HK$2,645 HKD
$337 USD
View
B
Retailer 4
-
HK$3,162 HKD
$403 USD
View
B
Retailer 5
-
HK$3,402 HKD
€413 EUR
View
B
Retailer 6
-
HK$3,897 HKD
£391 GBP
View
Most Expensive
C
MOH London
5A3CC6575 · Oct 29
HK$4,454 HKD
£447 GBP
View
6 more retailers have this diamond
Prices start from HK$1,922 HKDSave up to HK$2,532 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.

B+
0.31ct Marquise
HK$1,922 HKD