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Marquise|Natural|IGI

0.31ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 810631802

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 810631802

Diamond specifications and retailer prices

From HK$1,525 HKD
₹18,512 INR
As of November 2, 2026
Save HK$3,417 HKD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$4,942 HKD at MOH London · As of November 2, 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 810631802. Listed at 8 retailers as of November 2, 2026, with prices from HK$1,525 to HK$4,942, a HK$3,417 spread on the same certified stone. MOH London lists it at HK$4,942. 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 angle32°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 810631802
Dimensions7.12 × 3.60 × 2.12 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizeNone
Top View
7.12 mm3.60 mm0.31 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 810631802
Side View
Table 57.0%Crown 32°Girdle: MED-THKPavilion 39°Culet: NoneDepth 58.9%

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 2
Current: HK$4,942 HKD|Low: HK$1,525 HKD|High: HK$5,002 HKD|Avg: HK$3,149 HKD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2HK$1,525 HKD
Retailer 6HK$2,307 HKD
Retailer 4HK$2,812 HKD
Retailer 5HK$3,318 HKD
Retailer 7HK$3,492 HKD
Retailer 3HK$3,674 HKD
MOH LondonHK$4,942 HKD

45 data points across 7 retailers

8 retailersHK$1,525 HKD to HK$4,942 HKD

A
Cheapest Retailer
-
HK$1,525 HKD
₹18,512 INR
B+
Retailer 2
-
HK$2,307 HKD
$294 USD
View
B
Retailer 3
-
HK$2,812 HKD
£282 GBP
View
B
Retailer 4
-
HK$3,163 HKD
$403 USD
View
B
Retailer 5
-
HK$3,318 HKD
ZAR 6,832 ZAR
View
B
Retailer 6
-
HK$3,492 HKD
$445 USD
View
B
Retailer 7
-
HK$3,674 HKD
€446 EUR
View
Most Expensive
C
MOH London
17B5F47BD · Nov 2
HK$4,942 HKD
£496 GBP
View
7 more retailers have this diamond
Prices start from HK$1,525 HKDSave up to HK$3,417 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 Marquise
HK$1,525 HKD