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0.31ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG459192739

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459192739

Diamond specifications and retailer prices

From HK$1,334 HKD
$170 USD
As of November 1, 2026
Save HK$6,398 HKD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$7,732 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round 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 LG459192739 or 459192739. Listed at 11 retailers as of November 1, 2026, with prices from HK$1,334 to HK$7,732, a HK$6,398 spread on the same certified stone. MOH London lists it at HK$7,732. 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
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459192739
Dimensions4.32 × 4.35 × 2.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.32 mm4.35 mm0.31 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459192739
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

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 1
Current: HK$7,732 HKD|Low: HK$1,279 HKD|High: HK$7,832 HKD|Avg: HK$2,791 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5HK$1,334 HKD
Retailer 8HK$1,546 HKD
Retailer 3HK$1,648 HKD
Retailer 6HK$1,655 HKD
Retailer 9HK$2,220 HKD
Retailer 2HK$2,941 HKD
Retailer 7HK$2,958 HKD
Retailer 4HK$3,402 HKD
MOH LondonHK$7,732 HKD

42 data points across 9 retailers

11 retailersHK$1,334 HKD to HK$7,732 HKD

A
Cheapest Retailer
-
HK$1,334 HKD
$170 USD
A
Retailer 2
-
HK$1,546 HKD
$197 USD
View
B+
Retailer 3
-
HK$1,648 HKD
$210 USD
View
Retailer 4
-
HK$1,655 HKD
$211 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$1,655 HKD
$211 USD
View
B
Retailer 6
-
HK$2,941 HKD
£295 GBP
View
B
Retailer 7
-
HK$2,958 HKD
$377 USD
View
B
Retailer 8
-
HK$3,402 HKD
€413 EUR
View
B
Retailer 9
-
HK$3,846 HKD
£386 GBP
View
B
Retailer 10
-
HK$5,319 HKD
$678 USD
View
Most Expensive
B
MOH London
LG459192739 · Nov 1
HK$7,732 HKD
£776 GBP
View
10 more retailers have this diamond
Prices start from HK$1,334 HKDSave up to HK$6,398 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 Round
HK$1,334 HKD