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Marquise|Natural|IGI

0.31ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 839660312

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 839660312

Diamond specifications and retailer prices

From HK$2,173 HKD
$277 USD
As of October 29, 2026
Save HK$2,879 HKD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$5,052 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 839660312. Listed at 8 retailers as of October 29, 2026, with prices from HK$2,173 to HK$5,052, a HK$2,879 spread on the same certified stone. MOH London lists it at HK$5,052. 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
SymmetryVery Good
FluorescenceNone
Crown angle37.1°
Pavilion angle37.9°
OriginNatural
Grading LabIGI
CertificateIGI 839660312
Dimensions7.18 × 3.46 × 2.18 mm
L/W Ratio2.08
Girdle conditionFaceted
Top View
7.18 mm3.46 mm0.31 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 839660312
Side View
Table 54.0%Crown 37.1°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 63.0%

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$5,052 HKD|Low: HK$2,173 HKD|High: HK$9,863 HKD|Avg: HK$4,111 HKD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6HK$2,173 HKD
Retailer 5HK$2,432 HKD
Retailer 7HK$3,029 HKD
Retailer 8HK$3,390 HKD
Retailer 2HK$3,781 HKD
Retailer 3HK$4,420 HKD
MOH LondonHK$5,052 HKD
Retailer 4HK$9,863 HKD

25 data points across 8 retailers

8 retailersHK$2,173 HKD to HK$5,052 HKD

B+
Cheapest Retailer
-
HK$2,173 HKD
$277 USD
B+
Retailer 2
-
HK$2,432 HKD
$310 USD
View
B
Retailer 3
-
HK$3,029 HKD
$386 USD
View
B
Retailer 4
-
HK$3,390 HKD
$432 USD
View
B
Retailer 5
-
HK$3,781 HKD
€459 EUR
View
B
Retailer 6
-
HK$4,420 HKD
£444 GBP
View
Most Expensive
C
MOH London
5D5B9DDD1 · Oct 29
HK$5,052 HKD
£507 GBP
View
6 more retailers have this diamond
Prices start from HK$2,173 HKDSave up to HK$2,879 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$2,173 HKD