Oval|Lab Grown|UNKNOWN

0.31ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • UNKNOWN 35872872

Certificate UNKNOWN 35872872

Diamond specifications and retailer prices

From $168 USD
As of October 29, 2026
Save $207 USD (55%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $671 USD at NZ Jewellers · As of October 28, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 35872872. Listed at 5 retailers as of October 28, 2026, with a 123% 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35872872
Dimensions5.13 × 3.86 × 2.32 mm
L/W Ratio1.33
Top View
5.13 mm3.86 mm0.31 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 35872872
Side View
Table 59.4%CrownGirdlePavilionCuletDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $168 USD|Low: $162 USD|High: $375 USD|Avg: $254 USD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$168 USD
Retailer 2$209 USD
Retailer 4$209 USD
Retailer 3$375 USD

5 data points across 4 retailers

5 retailers$168 USD to $375 USD

A
Cheapest Retailer
-
$168 USD
B+
Retailer 2
-
$195 USD
View
B+
Retailer 3
-
$209 USD
View
C
Retailer 4
-
$375 USD
View
Most Expensive
NZ Jewellers
31b58726-ddb4-49f9-875e-927625eba463 · Oct 28
$671 USD
View
Price under review
4 more retailers have this diamond
Prices start from $168 USDSave up to $207 USD

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
$168 USD