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Oval|Lab Grown|UNKNOWN

0.30ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • UNKNOWN 3518111811

Certificate UNKNOWN 3518111811

Diamond specifications and retailer prices

From $242 CAD
$173 USD
As of October 29, 2026
Save $293 CAD (55%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $966 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 3518111811. 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 3518111811
Dimensions5.32 × 3.83 × 2.26 mm
L/W Ratio1.39
Top View
5.32 mm3.83 mm0.30 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 3518111811
Side View
Table 61.2%CrownGirdlePavilionCuletDepth 58.9%

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: $535 CAD|Avg: $363 CAD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$242 CAD
Retailer 2$301 CAD
Retailer 4$301 CAD
Retailer 3$535 CAD

5 data points across 4 retailers

5 retailers$242 CAD to $535 CAD

A
Cheapest Retailer
-
$242 CAD
$173 USD
B+
Retailer 2
-
$281 CAD
$201 USD
View
B
Retailer 3
-
$301 CAD
$215 USD
View
C
Retailer 4
-
$535 CAD
$382 USD
View
Most Expensive
NZ Jewellers
49e41933-1568-425c-b0b2-b568b06b659c · Oct 28
$966 CAD
$690 USD
View
Price under review
4 more retailers have this diamond
Prices start from $242 CADSave up to $293 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