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Round|Lab Grown|IGI

0.30ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG301686

Certificate IGI LG301686

Diamond specifications and retailer prices

From $714 AUD
SGD 678 SGD
As of October 31, 2026
Save $25 AUD (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $740 AUD at Diamond Quarter · As of November 1, 2026
View at Diamond Quarter

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG301686 or 301686. Listed at 2 retailers as of October 31, 2026, with a relatively tight 4% 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

0.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginLab Grown
Grading LabIGI
CertificateIGI LG301686
Dimensions4.30 × 4.35 mm
L/W Ratio1.01
Top View
4.30 mm4.35 mm0.30 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI LG301686
Side View
Table 60.0%CrownGirdle: THN - STKPavilionCulet: NONEDepth 60.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $740 AUD|Low: $376 AUD|High: $2,084 AUD|Avg: $844 AUD
Diamond Quarter
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 13, 2026
Retailer 3$376 AUD
Retailer 7$484 AUD
Retailer 2$714 AUD
Diamond Quarter$740 AUD
Retailer 6$745 AUD
Retailer 4$765 AUD
Retailer 5$2,084 AUD

3 data points across 7 retailers

2 retailers$714 AUD to $740 AUD

B
Cheapest Retailer
-
$714 AUD
SGD 678 SGD
Most Expensive
B
Diamond Quarter
0.3SI1H65173ED5N · Nov 1
$740 AUD
£409 GBP
View
1 more retailer has this diamond
Prices start from $714 AUDSave up to $25 AUD

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
0.30ct Round
$714 AUD