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Oval|Lab Grown|UNKNOWN

0.31ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • UNKNOWN 3516041604

Certificate UNKNOWN 3516041604

Diamond specifications and retailer prices

From $253 AUD
$178 USD
As of October 29, 2026
Save $303 AUD (54%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,009 AUD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.31ct lab-grown oval diamond

This 0.31ct 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 3516041604. Listed at 5 retailers as of October 29, 2026, with a 120% 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

0.31
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 3516041604
Dimensions5.14 × 3.87 × 2.49 mm
L/W Ratio1.33
Top View
5.14 mm3.87 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 3516041604
Side View
Table 61.7%CrownGirdlePavilionCuletDepth 64.4%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $253 AUD|Low: $243 AUD|High: $557 AUD|Avg: $373 AUD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$253 AUD
Retailer 2$315 AUD
Retailer 4$315 AUD
Retailer 3$557 AUD

4 data points across 4 retailers

5 retailers$253 AUD to $557 AUD

A
Cheapest Retailer
-
$253 AUD
$178 USD
B+
Retailer 2
-
$293 AUD
$206 USD
View
B
Retailer 3
-
$315 AUD
$221 USD
View
C
Retailer 4
-
$557 AUD
$391 USD
View
Most Expensive
NZ Jewellers
19e170ed-550c-47f6-9bba-e798e7ccc42c · Oct 31
$1,009 AUD
$709 USD
View
Price under review
4 more retailers have this diamond
Prices start from $253 AUDSave up to $303 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
0.31ct Oval
$253 AUD