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Round|Lab Grown

0.30ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • TA50B-320-1296

Diamond specifications and retailer prices

From $226 AUD
$159 USD
As of October 30, 2026
Save $16 AUD (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $242 AUD at Aurelinne · As of October 27, 2026
View at Aurelinne

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. Listed at 2 retailers as of October 27, 2026, with a relatively tight 7% 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
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA50B-320-1296
Dimensions4.31 × 4.29 × 2.59 mm
L/W Ratio1.00
Top View
4.31 mm4.29 mm0.30 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateTA50B-320-1296
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $242 AUD|Low: $226 AUD|High: $242 AUD|Avg: $234 AUD|+1.8%
Aurelinne
Retailer 2
October 2, 2026
Retailer 2$226 AUD
Aurelinne$242 AUD

3 data points across 2 retailers

2 retailers$226 AUD to $242 AUD

B+
Cheapest Retailer
-
$226 AUD
$159 USD
Most Expensive
B
Aurelinne
a29a5dcb-c265-4513-9922-be45aec9f8fd · Oct 27
$242 AUD
$170 USD
View
1 more retailer has this diamond
Prices start from $226 AUDSave up to $16 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
$226 AUD