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Marquise|Lab Grown|IGI

0.31ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG841689375

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841689375

Diamond specifications and retailer prices

From HK$1,020 HKD
$130 USD
As of October 28, 2026
Save HK$3,683 HKD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$4,703 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG841689375 or 841689375. Listed at 7 retailers as of October 28, 2026, with prices from HK$1,020 to HK$4,703, a HK$3,683 spread on the same certified stone. MOH London lists it at HK$4,703. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle26°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841689375
Dimensions7.19 × 3.55 × 2.20 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.19 mm3.55 mm0.31 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG841689375
Side View
Table 52.0%Crown 26°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 62.0%

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: Oct 28
Current: HK$4,703 HKD|Low: HK$1,020 HKD|High: HK$4,703 HKD|Avg: HK$2,140 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4HK$1,020 HKD
Retailer 2HK$1,092 HKD
Retailer 5HK$1,499 HKD
Retailer 3HK$1,636 HKD
Retailer 6HK$2,424 HKD
Retailer 7HK$2,529 HKD
MOH LondonHK$4,703 HKD

15 data points across 7 retailers

7 retailersHK$1,020 HKD to HK$4,703 HKD

A
Cheapest Retailer
-
HK$1,020 HKD
$130 USD
B+
Retailer 2
-
HK$1,092 HKD
£110 GBP
View
B+
Retailer 3
-
HK$1,499 HKD
$191 USD
View
B+
Retailer 4
-
HK$1,636 HKD
£164 GBP
View
B
Retailer 5
-
HK$2,424 HKD
$309 USD
View
B
Retailer 6
-
HK$2,529 HKD
$322 USD
View
Most Expensive
B
MOH London
LG841689375 · Oct 29
HK$4,703 HKD
£472 GBP
View
6 more retailers have this diamond
Prices start from HK$1,020 HKDSave up to HK$3,683 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$1,020 HKD