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Round|Lab Grown|IGI

0.31ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG301449

Certificate IGI LG301449

Diamond specifications and retailer prices

From HK$4,074 HKD
£409 GBP
As of November 1, 2026
Save HK$263 HKD (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$4,337 HKD at Fonder Diamond · As of October 31, 2026
View at Fonder Diamond

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG301449 or 301449. Listed at 2 retailers as of October 31, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG301449
Dimensions4.36 × 4.34 × 2.72 mm
L/W Ratio1.00
Top View
4.36 mm4.34 mm0.31 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG301449
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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$4,337 HKD|Low: HK$3,646 HKD|High: HK$7,148 HKD|Avg: HK$4,635 HKD|-0.4%
Fonder Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 13, 2026
Retailer 4HK$3,646 HKD
Retailer 6HK$3,687 HKD
Retailer 3HK$4,074 HKD
Fonder DiamondHK$4,337 HKD
Retailer 5HK$4,902 HKD
Retailer 2HK$7,148 HKD

4 data points across 6 retailers

2 retailersHK$4,074 HKD to HK$4,337 HKD

B
Cheapest Retailer
-
HK$4,074 HKD
£409 GBP
Most Expensive
B
Fonder Diamond
96942014 · Oct 31
HK$4,337 HKD
SGD 747 SGD
View
1 more retailer has this diamond
Prices start from HK$4,074 HKDSave up to HK$263 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 Round
HK$4,074 HKD