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Marquise|Lab Grown|IGI

0.31ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG790675907

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790675907

Diamond specifications and retailer prices

From HK$541 HKD
$69 USD
As of November 2, 2026
Save HK$4,391 HKD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$4,932 HKD at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG790675907 or 790675907. Listed at 12 retailers as of November 2, 2026, with prices from HK$541 to HK$4,932, a HK$4,391 spread on the same certified stone. MOH London lists it at HK$4,932. 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

0.31
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790675907
Dimensions7.42 × 3.45 × 2.07 mm
L/W Ratio2.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm3.45 mm0.31 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790675907
Side View
Table 59.0%Crown 32.8°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 60.0%

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: Nov 2
Current: HK$4,932 HKD|Low: HK$518 HKD|High: HK$4,992 HKD|Avg: HK$2,031 HKD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5HK$541 HKD
Retailer 3HK$1,194 HKD
Retailer 2HK$1,376 HKD
Retailer 6HK$1,546 HKD
Retailer 4HK$1,725 HKD
Retailer 7HK$2,456 HKD
MOH LondonHK$4,932 HKD

42 data points across 7 retailers

12 retailersHK$541 HKD to HK$4,932 HKD

A
Cheapest Retailer
-
HK$541 HKD
$69 USD
A
Retailer 2
-
HK$628 HKD
$80 USD
View
Retailer 3
-
HK$714 HKD
$91 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$714 HKD
$91 USD
View
A
Retailer 5
-
HK$1,138 HKD
$145 USD
View
B+
Retailer 6
-
HK$1,194 HKD
£120 GBP
View
B+
Retailer 7
-
HK$1,376 HKD
€167 EUR
View
B+
Retailer 8
-
HK$1,546 HKD
$197 USD
View
B+
Retailer 9
-
HK$1,725 HKD
£173 GBP
View
B
Retailer 10
-
HK$2,158 HKD
$275 USD
View
B
Retailer 11
-
HK$2,456 HKD
$313 USD
View
Most Expensive
B
MOH London
LG790675907 · Nov 2
HK$4,932 HKD
£495 GBP
View
11 more retailers have this diamond
Prices start from HK$541 HKDSave up to HK$4,391 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$541 HKD