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Round|Lab Grown|UNKNOWN

0.30ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • UNKNOWN 35638638

Certificate UNKNOWN 35638638

Diamond specifications and retailer prices

From $221 AUD
$155 USD
As of October 29, 2026
Save $658 AUD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $878 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 35638638. Listed at 5 retailers as of October 27, 2026, with prices from $221 to $878, a $658 spread on the same certified stone. NZ Jewellers lists it at $878. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35638638
Dimensions4.38 × 4.35 × 2.59 mm
L/W Ratio1.01
Top View
4.38 mm4.35 mm0.30 ctD / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 35638638
Side View
Table 58.6%CrownGirdlePavilionCuletDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $221 AUD|Low: $212 AUD|High: $500 AUD|Avg: $317 AUD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$221 AUD
Retailer 4$256 AUD
Retailer 2$273 AUD
Retailer 3$500 AUD

4 data points across 4 retailers

5 retailers$221 AUD to $878 AUD

A
Cheapest Retailer
-
$221 AUD
$155 USD
B+
Retailer 2
-
$256 AUD
$180 USD
View
B+
Retailer 3
-
$273 AUD
$192 USD
View
B
Retailer 4
-
$500 AUD
$351 USD
View
Most Expensive
C
NZ Jewellers
eba71369-da6b-4334-89d3-cf55b02719fe · Oct 27
$878 AUD
$617 USD
View
4 more retailers have this diamond
Prices start from $221 AUDSave up to $658 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.

A
0.30ct Round
$221 AUD