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Oval|Lab Grown|UNKNOWN

0.30ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • UNKNOWN 3512921292

Certificate UNKNOWN 3512921292

Diamond specifications and retailer prices

From $242 CAD
$173 USD
As of October 29, 2026
Save $292 CAD (55%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $964 CAD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.3ct lab-grown oval diamond

This 0.3ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 3512921292. Listed at 5 retailers as of October 29, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3512921292
Dimensions5.12 × 3.83 × 2.43 mm
L/W Ratio1.34
Top View
5.12 mm3.83 mm0.30 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 3512921292
Side View
Table 58.7%CrownGirdlePavilionCuletDepth 63.3%

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: $242 CAD|Low: $232 CAD|High: $534 CAD|Avg: $363 CAD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$242 CAD
Retailer 2$300 CAD
Retailer 4$300 CAD
Retailer 3$534 CAD

5 data points across 4 retailers

5 retailers$242 CAD to $534 CAD

A
Cheapest Retailer
-
$242 CAD
$173 USD
B+
Retailer 2
-
$281 CAD
$201 USD
View
B
Retailer 3
-
$300 CAD
$215 USD
View
C
Retailer 4
-
$534 CAD
$382 USD
View
Most Expensive
NZ Jewellers
63fddc8a-6b2a-4a39-9828-88c2d06f75a9 · Oct 28
$964 CAD
$690 USD
View
Price under review
4 more retailers have this diamond
Prices start from $242 CADSave up to $292 CAD

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 Oval
$242 CAD